diff --git a/lib/access_panel.scad b/lib/access_panel.scad
new file mode 100644
index 0000000..57cd1f1
--- /dev/null
+++ b/lib/access_panel.scad
@@ -0,0 +1,104 @@
+/*
+    access_port(size[],orientation)
+    access_cover(size[],orientation)
+
+*/
+
+/* access port and support */
+module access_port(size,orientation) {
+    
+    floorthick = size[2];
+    adjust = .01;
+    $fn = 90;
+    if(orientation == "portrait") {
+        difference() {
+            union() {
+                translate([0,0,0]) cube([size[0],size[1],size[2]]);
+                // access panel support
+                translate([(size[0]/2)+.25,size[1]-6.5,0]) cylinder(d=9,h=floorthick+(adjust*2)+5);
+                translate([(size[0]/2)-10,size[1]-11,floorthick-adjust]) cube([20,9.5,floorthick]);
+                translate([1,0,floorthick-adjust]) cube([size[0]-2,5,4.5]);
+                }
+            // access opening
+            translate([.5,6,-adjust]) cube([size[0]-1.15,size[1]-17,floorthick+(adjust*2)]);
+            translate([(size[0]/2)-5,size[1]-12,-adjust]) slab([10.5,5.5,floorthick],5.5);
+            translate([(size[0]/2)+.25,size[1]-6.5,floorthick+2])
+                cylinder(r=3.2,h=floorthick+(adjust*2)+5,$fn=6);
+            translate([(size[0]/2)+.25,size[1]-6.5,-adjust]) 
+                cylinder(d=3.2,h=floorthick+(adjust*2)+5);
+            translate([4,2+adjust,floorthick]) cube([7.75,3,2.75]);
+            translate([size[0]-13,2+adjust,floorthick]) cube([7.75,3,2.75]);
+            if(size[0] > 100) {
+                translate([(size[0]/2),2+adjust,floorthick]) cube([7.75,3,2.75]);
+            }
+        }
+    }
+    if(orientation == "landscape") {
+        difference() {
+            union() {
+                translate([0,-1,0]) cube([size[0],size[1],size[2]]);
+                // access panel support
+                translate([size[0]-6.5,(size[1]/2)-.5,0]) cylinder(d=9,h=floorthick+(adjust*2)+5);
+                translate([size[0]-11,(size[1]/2)-10.5,floorthick-adjust]) cube([9.5,20,floorthick]);
+                translate([0,0,floorthick-adjust]) cube([5,size[1]-2,4.5]);
+            }
+            // access opening
+            translate([6,-.5,-adjust]) cube([size[0]-17,size[1]-1.15,floorthick+(adjust*3)]);
+            translate([size[0]-12,(size[1]/2)-6,-adjust]) slab([5.5,10.5,floorthick],5.5);
+            translate([size[0]-6.5,(size[1]/2)-.5,floorthick+2]) rotate([0,0,30])
+                cylinder(r=3.2,h=floorthick+(adjust*2)+5,$fn=6);
+            translate([size[0]-6.5,(size[1]/2)-.5,-adjust]) 
+                cylinder(d=3.2,h=floorthick+(adjust*2)+5);
+            translate([2+adjust,3,floorthick]) cube([3,8.25,2.75]);
+            translate([2+adjust,size[1]-13,floorthick]) cube([3,8.25,2.75]);
+            if(size[1] > 100) {
+                translate([2+adjust,(size[1]/2)-(7.75/2)-1.25,floorthick]) cube([3,7.75,2.5]);
+            }
+        }
+    }
+}
+
+
+/* access cover and support */        
+module access_cover(size,orientation) {
+    
+    floorthick = size[2];
+    adjust = .01;
+    $fn = 90;
+    if(orientation == "portrait") {
+        difference() {
+            union() {
+                translate([1,6.25,0]) cube([size[0]-2.15,size[1]-17.5,floorthick]);
+                translate([(size[0]/2)-4.75,size[1]-12.25,0]) slab([10,5,floorthick], 5);
+                translate([1,6.25,floorthick-adjust]) cube([size[0]-2.15,6,floorthick]);
+                translate([4.25,3,floorthick]) cube([7.25,4,2]);
+                translate([size[0]-12.75,3,floorthick]) cube([7.25,4,2]);
+                if(size[0] > 100) {
+                    translate([(size[0]/2)+.25,3,floorthick]) cube([7.25,4,2]);
+                }
+            }
+            translate([(size[0]/2)+.25,size[1]-6.5,-floorthick-adjust]) 
+                cylinder(d=3.2,h=(floorthick*2)+(adjust*2));
+            translate([(size[0]/2)+.25,size[1]-6.5,-floorthick-adjust+floorthick]) 
+                cylinder(d1=6, d2=3.2, h=floorthick);
+        }
+    }
+    if(orientation == "landscape") {
+        difference() {
+            union() {
+                translate([6.25,0,0]) cube([size[0]-17.75,size[1]-2,floorthick]);
+                translate([size[0]-12.25,(size[1]/2)-5.75,0]) slab([5,10,floorthick], 5);
+                translate([6.25,0,floorthick-adjust]) cube([6,size[1]-2.15,floorthick]);
+                translate([3.5+adjust,3.25,floorthick]) cube([4,7.25,2]);
+                translate([3.5+adjust,size[1]-12.75,floorthick]) cube([4,7.25,2]);
+                if(size[1] > 100) {
+                    translate([3.5+adjust,(size[1]/2)-(7.75/2)-1,floorthick]) cube([4,7.25,2]);
+                }
+            }
+            translate([size[0]-6.5,(size[1]/2)-.75,-floorthick-adjust]) 
+                cylinder(d=3.2,h=(floorthick*2)+(adjust*2));
+            translate([size[0]-6.5,(size[1]/2)-.75,-floorthick-adjust+floorthick]) 
+                cylinder(d1=6, d2=3.2, h=floorthick);
+        }
+    }
+}
diff --git a/lib/art.scad b/lib/art.scad
new file mode 100644
index 0000000..0f5b37a
--- /dev/null
+++ b/lib/art.scad
@@ -0,0 +1,12 @@
+/*
+
+    art(scale_d1,type,size_z)
+
+*/
+
+/* art work module */
+module art(scale_d1,size_z,type) {
+    
+    linear_extrude(height = size_z) import(file = type, scale=scale_d1);
+
+}
diff --git a/lib/battery.scad b/lib/battery.scad
new file mode 100644
index 0000000..3ed8555
--- /dev/null
+++ b/lib/battery.scad
@@ -0,0 +1,86 @@
+/*
+
+    battery(type)
+    battery_clip(bat_dia = 18.4)
+    batt_holder(tolerance)
+
+*/
+
+module battery(type) {
+
+    adj = .01;
+    if(type == "18650") {
+        difference() {
+            cylinder(d=18.4, h=65);
+            translate([0,0,65-4]) difference() {
+                cylinder(d=18.5, h=2);
+                cylinder(d=17.5, h=3);
+            }
+        }
+    }
+    if(type == "18650_convex") {
+        difference() {
+            cylinder(d=18.4, h=68);
+            translate([0,0,65-4]) difference() {
+                cylinder(d=18.5, h=2);
+                cylinder(d=17.5, h=3);
+            }
+            translate([0,0,65-adj]) difference() {
+                cylinder(d=18.5, h=3+2*adj);
+                cylinder(d=14.4, h=3+2*adj);
+            }
+        }
+    }
+    if(type == "21700") {
+        difference() {
+            cylinder(d=21, h=70);
+            translate([0,0,70-4]) difference() {
+                cylinder(d=21.1, h=2);
+                cylinder(d=20.1, h=3);
+            }
+        }
+    }
+}
+
+module battery_clip(bat_dia = 18.4) {
+    
+    mat = .38;
+    width = 9.5;
+    tab = 8.9;
+    bat_holder = bat_dia+2*mat;
+    adj = .1;
+
+    translate([-5.5,0,10.5]) {
+        difference() {
+            translate([0,width,0]) rotate([90,0,0]) cylinder(d=bat_holder, h=9.5);
+            translate([0,width+adj,0]) rotate([90,0,0]) cylinder(d=bat_dia, h=10.5);
+            translate([mat/2-11.1/2,-adj,mat-1.3-bat_dia/2]) cube([11.1-mat,width+2*adj,3]);
+            translate([0,width+adj,0]) rotate([90,-45,0]) cube([bat_dia,bat_dia,bat_holder]);
+        }
+        difference() {
+            translate([-11.1/2,0,-1.3-bat_dia/2]) cube([11.1,width,3]);
+            translate([mat-11.1/2,-adj,mat/2-1.3-bat_dia/2]) cube([11.1-2*mat,width+2*adj,3]);
+        }
+        difference() {
+            translate([-(tab/2),-3.5,-1-bat_dia/2]) rotate([-5,0,0]) cube([tab,3.5,10]);
+            translate([-(tab/2)-adj,-3.5+mat,mat-1-bat_dia/2]) rotate([-5,0,0]) cube([tab+2*adj,3.5+mat,10]);
+        }    
+        translate([0,-2.225,0]) rotate([85,0,0]) cylinder(d=tab, h=mat);
+        difference() {
+            translate([0,-2.75,0]) sphere(d=3);
+            translate([-5,-2.75,-5]) rotate([85,0,0]) cube([tab,10,10]);
+        }
+    }
+}
+
+module batt_holder(tolerance) {
+    
+    $fn = 90;
+    difference () {
+        cylinder(d=25.5,h=6);
+        translate ([0,0,-1]) cylinder(d=20.4+tolerance,h=8);
+        cube([14,26,13], true);
+    }
+    cylinder(r=12.75, h=2);
+}
+
diff --git a/lib/button.scad b/lib/button.scad
new file mode 100644
index 0000000..bdfc4e3
--- /dev/null
+++ b/lib/button.scad
@@ -0,0 +1,112 @@
+/*
+    button(style, diameter, height)
+    button_assembly(style, diameter, height
+    button_plunger(style, diameter, height)
+    button_top(style, diameter, height)
+    button_clip(style)
+
+*/
+
+/* buttons */
+module button(style, size, radius, pad) {
+
+    diameter = size[0];
+    height = size[2];
+    gap = 1.5;
+    adjust = .01;
+    $fn = 90;
+
+    if(style == "recess") {
+        difference() {
+            union() {
+                sphere(d=diameter);
+                translate([0,0,-height+3]) cylinder(d=6, h=height-6);
+            }
+            translate([-(diameter/2)-1,-(diameter/2)-1,0]) cube([diameter+2,diameter+2,(diameter/2)+2]);
+            difference() {
+                union() {
+                    sphere(d=diameter-2);
+                }
+            }
+            translate([-1.75,-1.25,-height-1]) cube([3.5,2.5,height+2]);
+            translate([0,0,-(diameter/2)]) cylinder(d=5, h=2);
+        }
+    }
+    if(style == "cutout") {
+        difference() {
+            translate([-size[0]+2,-3-size[1]/2,0]) slab_r([size[0]+2,size[1]+6,size[2]-2*adjust], [.1,.1,.1,.1]);            
+            difference() {
+                translate([-size[0]+3,-size[1]/2,-adjust]) 
+                    slab_r([size[0],size[1],size[2]], [radius[0],radius[1],radius[2],radius[3]]);
+                translate([-size[0]+3+(gap/2),-size[1]/2+(gap/2),-1]) slab_r([size[0]-gap,size[1]-gap,1+size[2]+2*adjust], 
+                    [radius[0],radius[1],radius[2]-gap/2,radius[3]-gap/2]);
+                translate([-size[0]+3-gap,-1,-1]) cube([gap*2,2,1+height+2*adjust]);
+            }
+            translate([0,0,2]) sphere(d=3);
+        }
+        translate([0,0,-pad+adjust]) cylinder(d=3, h=pad);
+    }
+}
+
+
+/* button plunger,top,clip */
+module button_assembly(style, diameter, height) {
+
+adjust = .01;
+$fn = 90;
+
+    if(style == "recess") {
+        button_plunger(style, diameter, height);
+        button_top(style, diameter, height);
+        translate([0,0,-height]) button_clip(style);
+    }
+}
+
+
+/* button plunger */
+module button_plunger(style, diameter, height) {
+
+adjust = .01;
+$fn = 90;
+
+    if(style == "recess") {
+        difference() {
+            translate([-1.5,-1,-(height)-2]) cube([3,2,height+1]);
+            translate([-1.5-adjust,-1.5,-height]) cube([.5,3,1]);
+            translate([1+adjust,-1.5,-height]) cube([.5,3,1]);
+            translate([-1.5-adjust,-1.5,-4]) cube([.5,3,4]);
+            translate([1+adjust,-1.5,-4]) cube([.5,3,4]);
+        }
+    }
+}
+
+
+/* button top */
+module button_top(style, diameter, height) {
+
+adjust = .01;
+$fn = 90;
+
+    if(style == "recess") {
+        difference() {
+            translate([0,0,-3]) cylinder(d=5, h=2.75);
+            translate([-1.25,-1.25,-3-adjust]) cube([2.5,2.5,2]);
+        }
+    }
+}
+
+
+/* button c-clip */
+module button_clip(style) {
+
+adjust = .01;
+$fn = 90;
+
+    if(style == "recess") {
+        difference() {
+            cylinder(d=8.5, h=.8);
+            translate([-1.5,-1.75,-adjust]) cube([2.75,3.5,1]);
+            translate([-.75,-.75,-adjust]) cube([5,1.25,1.25]);
+        }
+    }
+}
diff --git a/lib/cable_holder.scad b/lib/cable_holder.scad
new file mode 100644
index 0000000..ed1fbc5
--- /dev/null
+++ b/lib/cable_holder.scad
@@ -0,0 +1,19 @@
+/*
+
+    cableholder_spacer()
+
+*/
+
+module cableholder_spacer() {
+    
+    size = [9.4,16,6];
+    $fn = 90;
+    translate([0,size[2]/2,-5]) rotate([90,0,0])
+    difference() {
+        translate([size[0]/2,size[0]/2,0]) rotate([0,0,90]) slot(size[0],size[1],size[2]);
+        translate([-1,5,3]) rotate([0,90,0]) cylinder(d=3.2, h=12);
+        translate([-1,7.5,-1]) cube([2,20,9]);
+        translate([5,9.5,-1]) rotate([0,0,90]) slot(4.5,11,9);
+        translate([3,20,-1]) rotate([0,0,45]) cube([2,6,9]);
+    }
+}
diff --git a/lib/component.scad b/lib/component.scad
new file mode 100644
index 0000000..6aa04ed
--- /dev/null
+++ b/lib/component.scad
@@ -0,0 +1,313 @@
+/*
+
+    dsub(dsubsize, mask = false)
+    hdmi_a()
+    header_f(pins, height)
+    usb_micro()
+    uart_micro()
+    rj45()
+    header(pins)
+    encl_header_12()
+    micro2pin()
+    audio_jack35()
+    capacitor(diameter, height)
+    ic(size)
+    led(ledcolor = "red")
+    usbc()
+
+*/
+
+// hdmi a female 
+module hdmi_a() {
+    size_x = 14.5;
+    size_y = 11.5;        
+
+    translate([0,0,.75])
+    union() { 
+        difference() {
+            color("silver") translate([0,0,0]) cube([size_x, size_y, 5.5]);
+            color("dimgray") translate([.5,-.1,.5]) cube([13.5, 11, 4.5]);
+            color("silver") translate([0,-.1,0]) rotate ([-90,0,0]) 
+                cylinder(d=4, h=13.5,$fn=30);
+            color("silver") translate([14.5,-.1,0]) rotate ([-90,0,0]) 
+                cylinder(d=4, h=13.5,$fn=30);
+        }
+        difference() {
+            union() {
+                color("silver") translate([0,-.1,0]) rotate ([-90,0,0]) 
+                cylinder(d=4, h=11.5,$fn=30);
+                color("silver") translate([14.5,-.1,0]) rotate ([-90,0,0]) 
+                cylinder(d=4, h=11.5,$fn=30);
+            }               
+            color("silver") translate([0,-.2,0]) rotate ([-90,0,0]) 
+                cylinder(d=3, h=13.5,$fn=30);
+            color("silver") translate([14.5,-.2,0]) rotate ([-90,0,0]) 
+                cylinder(d=3, h=13.5,$fn=30);
+            color("silver") translate([-3,-1,-3]) cube([3,13.5,7.5]);
+            color("silver") translate([14.5,-1,-3]) cube([3,13.5,7.5]);
+            color("silver") translate([-1,-1,-3]) cube([16.5,13.5,3]);
+            }
+        color("black") translate([2.5,.5,2.25]) cube([9.25,10.5,1.5]);
+        }
+}
+
+
+// single row female headers
+module header_f(pins, height) {
+
+    adjust = .01;
+    $fn = 90;
+    size_x = 2.5;
+    size_y = 2.5 * pins;                
+    union() {
+        color("black") cube([size_x, size_y, height]);
+        for (i=[1:2.5:size_y]) {
+            color("dimgray") translate ([1,i,height-5+adjust]) cube([.64,.64,5]);
+        }
+    }
+}       
+
+
+// uart micro connector type
+module uart_micro() {
+    size_x = 12.5;
+    size_y = 5;        
+    union() {
+        difference() {
+            union() {
+            
+                difference () {
+                    color("white") translate([0,0,0]) cube([size_x,size_y,6]);
+                    color("darkgray") translate([.5,.5,2]) cube([11.5,4,6]);
+                }
+            }
+            color("white") translate([12.5,0,-.5]) cube([2,6,7]);
+            color("white") translate([-1,0,-.5]) cube([1,6,7]);
+            color("white") translate([-1,5,-.5]) cube([14,2,7]);
+            color("darkgray") translate([-1,1.5,2]) cube([14,1,7]);
+        }
+        for (i=[2.5:2.5:10]) {
+            color("silver") translate ([i,3,.5]) cube([.6,.6,5]);
+        }
+    }
+}
+
+
+// usb2 micro otg
+module usb_micro() {
+        size_x = 7;
+        size_y = 4.5;
+        union() {    
+            difference () {
+                color("silver") translate([0,0,0]) cube([size_x, size_y, 3.5]);
+                color("dimgray") translate([.5,-.1,.5]) cube([6, 3.5, 2.5]);
+                color("silver") translate([0,-.1,0]) rotate ([-90,0,0]) 
+                    cylinder(d=2.5, h=6.5,$fn=30);
+                color("silver") translate([7,-.1,0]) rotate ([-90,0,0]) 
+                    cylinder(d=2.5, h=6.5,$fn=30);
+
+            }
+            difference() {
+                union() {
+                    color("silver") translate([0,-.1,0]) rotate ([-90,0,0]) 
+                    cylinder(d=2.5, h=4.5,$fn=30);
+                    color("silver") translate([7,-.1,0]) rotate ([-90,0,0]) 
+                    cylinder(d=2.5, h=4.5,$fn=30);
+                }               
+                color("silver") translate([0,-.2,0]) rotate ([-90,0,0]) 
+                    cylinder(d=1.25, h=6.5,$fn=30);
+                color("silver") translate([7,-.2,0]) rotate ([-90,0,0]) 
+                    cylinder(d=1.25, h=6.5,$fn=30);
+                
+                color("silver") translate([-3,-1,-3]) cube([3,6.5,7.5]);
+                color("silver") translate([7,-1,-3]) cube([3,6.5,7.5]);
+                color("silver") translate([0,-1,-3]) cube([9,6.5,3]);
+                color("silver") translate([-1,-1,-3]) cube([9,6.5,3]);
+                }
+            color("black") translate([1.5,.5,1.25]) cube([4,3.5,1]);
+        }
+    }
+
+
+// rj45 single socket
+module rj45(x,y,rotation,side,pcbsize_z) {
+    size_x = 15.9;
+    size_y = 21.3;
+    place(x,y,0,size_x,size_y,rotation,side) 
+    union() {
+        difference () {
+            color("lightgray") translate([0,0,0]) cube([size_x, size_y, 13.5]);
+            color("darkgray") translate([1.5,-1,1.5]) cube([13, 19.5, 8]);
+            color("darkgray") translate([5.5,-2,7]) cube([5, 19.5, 5]);
+        }
+        color("green") translate([2,-.1,10]) cube([3, 2, 2]);
+        color("orange") translate([11,-.1,10]) cube([3, 2, 2]);
+    }
+}
+
+
+// momentary_4.5x4.5x1.5 button
+module momentary45x15() {
+
+    adjust = .01;
+    $fn = 90;
+    size_x = 4.5;
+    size_y = 4.5;        
+    size_z = 3.1;        
+    union() {
+        color("black") translate([0,0,0]) cube([size_x,size_y,3]);
+        color("silver") translate([0,0,3-adjust]) cube([size_x,size_y,.1]);
+        color("black") translate([2.25,2.25,3.1-adjust]) cylinder(d=2.35,h=1.50);
+        color("black") translate([.75,.75,3]) sphere(d=.75);
+        color("black") translate([.75,3.75,3]) sphere(d=.75);
+        color("black") translate([3.75,.75,3]) sphere(d=.75);
+        color("black") translate([3.75,3.75,3]) sphere(d=.75);
+    }
+}
+
+
+// single row headers
+module header(pins) {
+
+    adjust = .01;
+    $fn = 90;
+    size_x = 2.54;
+    size_y = 2.54 * pins;                
+    union() {
+        color("black") translate([0,0,0]) cube([size_x, size_y, 2.5]);
+        for (i=[1:2.54:size_y]) {
+            color("silver") translate ([1,i,2.5]) cube([.64,.64,5]);
+        }
+    }
+}       
+
+
+// gpio 12 enclosed header
+module encl_header_12() {
+    size_x = 19.5;
+    size_y = 5.5;                
+    union() {                
+        difference () {
+            color("black") translate([0,0,0]) cube([size_x,size_y,6.25]);
+            color ("dimgray") translate ([.5,.5,.6]) cube([18.5,4.5,5.75]);
+        }
+        for (i=[4.5:2:16]) {
+            color("silver") translate ([i,1.5,1]) cube([.5,.5,5]);
+            color("silver") translate ([i,3.5,1]) cube([.5,.5,5]);
+        }
+    }
+}
+
+    
+// micro connector type
+module micro2pin() {
+    size_x = 7.5;
+    size_y = 3.75;        
+    union() {  
+        difference () {
+            color("white") translate([0,0,0]) cube([size_x,size_y,4.75]);
+            color("darkgray") translate([1.5,.5,1]) cube([4.5,2.75,6]);
+            color("white") translate([-.5,.75,-.5]) cube([1,2.5,6]);
+            color("white") translate([7,.75,-.5]) cube([1,2.5,6]);
+            color("darkgray") translate([2.25,-.5,1]) cube([3,2,6]);
+        }
+        color("silver") translate ([2.75,2,.5]) cube([.6,.6,4]);
+        color("silver") translate ([4.5,2,.5]) cube([.6,.6,4]);
+    }
+}
+
+
+// 3.5mm audio plug
+module audio_jack35() {
+    
+    adjust = .01;
+    $fn = 90;
+    size_x = 6.5;
+    size_y = 13.5;        
+        difference () {
+            union() {  
+                color("dimgray") cube([size_x,size_y,3]);
+                color("dimgray") cube([size_x,5.6,4]);
+                color("dimgray") translate([size_x/2,0,2.25]) rotate([-90,0,0]) cylinder(d=6, h=size_y);
+            }
+            color("gray") translate([size_x/2,0,2.25]) rotate([-90,0,0]) cylinder(d=3, h=size_y+adjust);
+        }    
+}
+
+
+// can capacitor
+module capacitor(diameter, height) {
+    adjust = .01;
+    $fn = 90;
+    color("dimgray") rotate([0,0,0]) cylinder(d=diameter+.5, h=.5);
+    color("silver") translate([0,0,.5]) cylinder(d=diameter+.5, h=.5);
+    color("silver") translate([0,0,1]) cylinder(d=diameter, h=height-1);
+}
+
+
+// ic 
+module ic(size) {
+    color("dimgray") cube(size);
+}
+
+
+// d-sub connector
+module dsub(dsubsize, mask = false) {
+    
+    adjust=.01;
+    $fn = 90;
+
+    if(mask == true) {
+        union() {
+            translate([-1, 1, -.75]) rotate([90,0,0]) slab_r([19,10.5,10], [4,4,4,4]);
+            translate([-4, 1, 4.5]) rotate([90,0,0]) cylinder(h=10, d=3);
+            translate([21, 1, 4.5]) rotate([90,0,0]) cylinder(h=10, d=3);
+        }
+    }
+    else {
+        if(dsubsize[0] == 9 && dsubsize[1] == "female") {
+            translate([8.5,0.4,4.5]) rotate([90,0,0]) import("./stl/db9_f.stl");
+        }
+        if(dsubsize[0] == 9 && dsubsize[1] == "male") {
+            translate([8.5,0.4,4.5]) rotate([90,0,0]) import("./stl/db9_m.stl");
+        }
+    }
+}
+
+
+module led(ledcolor = "red") {
+    
+    color(ledcolor) cube([3,1.5,.4]);
+    color("silver") cube([.5,1.5,.5]);
+    color("silver") translate([2.5,0,0]) cube([.5,1.5,.5]);
+}
+
+
+module usbc() {
+    
+    $fn=90;
+    adj = .01;
+    
+    // usbc horizontal type
+        
+        size_x = 9;
+        size_y = 7;
+        dia = 3.5;
+        diam = 3.75;
+
+        rotate([90, 0, 0])  translate([dia/2, dia/2, -size_y]) union() {    
+            difference () {
+                color("silver")
+                hull() {
+                    translate([0,0,0]) cylinder(d=dia,h=size_y);
+                    translate([size_x-dia,0,0]) cylinder(d=dia,h=size_y);        
+                    }
+                color("silver") translate([0,0,1])
+                hull() {
+                    translate([0,0,0]) cylinder(d=3,h=size_y+.2);
+                    translate([size_x-dia,0,0]) cylinder(d=3,h=size_y+.2);        
+                    }
+            }
+            color("black") translate([0,-1.2/2,.1]) cube([5.5,1.2,6]);
+        }
+    }
diff --git a/lib/custom.scad b/lib/custom.scad
new file mode 100644
index 0000000..d59c334
--- /dev/null
+++ b/lib/custom.scad
@@ -0,0 +1,80 @@
+/*
+
+    h3_port_extender(style, mask = false)
+    h3_port_extender_holder(part,offset)
+
+*/
+
+// @mctom's odroid-h3 gpio port extender
+module h3_port_extender(style, mask = false) {
+    
+    adjust=.01;
+    $fn = 90;
+
+    if(style == "header") {
+        if(mask == true) {
+            translate([-20, 6.25, 15]) cube([12, 7.5, 14.75]);
+            translate([-20, 15.875, 15]) cube([12, 7.5, 14.75]);
+            translate([-20, 25.375, 15]) cube([12, 7.5, 14.75]);
+            translate([-20, 17, 32.2]) rotate([0, 90, 0]) cylinder(d=3.5, h=12);
+        }
+        else {
+            // gpio 24 pin front position
+            color("silver") translate([1.6, 188.5, 84]) rotate([90, 0, 270]) import("stl/h3_port_extender.stl");
+//            color("dimgrey") translate([-3, 15.75, 0.25]) rotate([90, 180, 180]) import("stl/header_f_2x12_90.stl");
+            translate([0, 2, 8.25]) rotate([0, 180, 0]) header_f(12,8);
+            translate([-2.54, 2, 8.25]) rotate([0, 180, 0]) header_f(12,8);
+            color("dimgrey") translate([-2.5, 0, 29.5]) rotate([270, 0, 90]) import("stl/header_2x2_90.stl");
+        }
+    }
+    if(style == "remote") {
+        if(mask == true) {
+            translate([-19, 6.25, 15]) cube([12,7.5,14.75]);
+            translate([-19, 15.875, 15]) cube([12,7.5,14.75]);
+            translate([-19, 25.375, 15]) cube([12,7.5,14.75]);
+            translate([-19, 17, 32.2]) rotate([0,90,0]) cylinder(d=2.5, h=12);
+            translate([-19, 17, 4.6]) rotate([0,90,0]) cylinder(d=2.5, h=12);
+        }
+        else {
+            // gpio 24 pin front position
+            color("silver") translate([1.6, 188.5, 84]) rotate([90, 0, 270]) import("stl/h3_port_extender.stl");
+            color("dimgrey") translate([-2.5, 0, 29.5]) rotate([270, 0, 90]) import("stl/header_2x2_90.stl");
+            color("dimgrey")translate([9,-.5,12.75]) rotate([0,270,90]) import("stl/header_encl_2x5_90.stl");
+            translate([2, 2, 14.08]) rotate([0, 90, 0]) header(12);
+            translate([2, 2, 11.54]) rotate([0, 90, 0]) header(12);
+        }
+    }
+}
+
+
+/*
+// h3_port_extender_holder(part, offset)
+// part = "both","top","bottom"
+// offset = projection from inside wall in mm
+// holder for the @mctom's remote h3 port extender
+*/
+module h3_port_extender_holder(part,offset=2) {
+
+    adjust = .01;
+    size = [16-offset,40,5.5];
+    if(part == "bottom" || part == "both") {
+        difference() {
+            translate([-10+offset,-3.5,2]) cube(size);
+            translate([-.25,-.25,-adjust]) cube([2.5, 33.25, 12]);
+            translate([2, 2, -adjust]) cube([10, 28, 12]);
+            translate([-12,(33.25/2)+.25,4.5]) rotate([0,90,0]) cylinder(d=2.7, h=20, $fn=60);
+//            translate([-7,-1.,-adjust]) cylinder(d=4.25, h=20);
+        }
+    }
+    if(part == "top" || part == "both") {
+        difference() {
+            translate([-10+offset,-3.5,29.5]) cube(size);
+            translate([-.25,-.25,28]) cube([2.5, 33.25, 12]);
+            translate([1.5, 2, 27.5-adjust]) cube([10, 28.5, 12]);
+            translate([-12, -4, 28]) cube([20, 13, 10]);
+            translate([1.35, 20, 25.5]) cube([10, 13, 5]);
+            translate([-12,(33.25/2)+.25,32]) rotate([0,90,0]) cylinder(d=2.7, h=20, $fn=60);
+        }
+    }
+}
+
diff --git a/lib/fan.scad b/lib/fan.scad
new file mode 100644
index 0000000..9af1338
--- /dev/null
+++ b/lib/fan.scad
@@ -0,0 +1,208 @@
+/*
+
+    fan_cover(size, thick)
+    fan_mask(size, thick, style)
+
+*/
+
+/* fan cover */
+module fan_cover(size, thick) {
+    difference() {
+        color("grey",1) slab([size,size,thick],3);
+        color("grey",1) fan_mask(size, thick, 2);
+    }
+}
+
+/* fan mask to create opening */
+module fan_mask(size, thick, style) {
+
+    $fn=90;
+    
+    if(style == 1) {
+        translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-2);
+        if(size == 40) {
+            // mount holes
+            translate ([size-4,size-4,-1]) cylinder(h=thick+2, d=3);
+            translate ([size-4,4,-1]) cylinder(h=thick+2, d=3);
+            translate ([4,size-4,-1]) cylinder(h=thick+2, d=3);
+            translate ([4,4,-1]) cylinder(h=thick+2, d=3);
+        }
+        if(size == 60) {
+            // mount holes
+            translate ([size-5,size-5,-1]) cylinder(h=thick+2, d=3);
+            translate ([size-5,5,-1]) cylinder(h=thick+2, d=3);
+            translate ([5,size-5,-1]) cylinder(h=thick+2, d=3);
+            translate ([5,5,-1]) cylinder(h=thick+2, d=3);
+        }
+        if(size >= 80) {
+            // mount holes
+            translate ([size-3.75,size-3.75,-1]) cylinder(h=thick+2, d=3);
+            translate ([size-3.75,3.75,-1]) cylinder(h=thick+2, d=3);
+            translate ([3.75,size-3.75,-1]) cylinder(h=thick+2, d=3);
+            translate ([3.75,3.75,-1]) cylinder(h=thick+2, d=3);
+        }
+    }
+    if(style == 2 && size == 40) {
+        difference() {
+            union () {
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-2);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-6);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-10);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-14);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-18);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-22);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-26);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-30);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-34);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-38);
+                }
+                // mount holes
+                translate ([size-4,size-4,-1]) cylinder(h=thick+2, d=3);
+                translate ([size-4,4,-1]) cylinder(h=thick+2, d=3);
+                translate ([4,size-4,-1]) cylinder(h=thick+2, d=3);
+                translate ([4,4,-1]) cylinder(h=thick+2, d=3);
+            }
+            translate([6.5,5,-2]) rotate([0,0,45]) cube([size,2,thick+4]);
+            translate([4.5,size-6,-2]) rotate([0,0,-45]) cube([size,2,thick+4]);
+        } 
+    }
+    if(style == 2 && size == 60) {
+        difference() {
+            union () {
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-2);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-6);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-10);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-14);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-18);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-22);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-26);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-30);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-34);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-38);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-42);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-46);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-50);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-54);
+                }
+                // mount holes
+                translate ([size-5,size-5,-1]) cylinder(h=thick+2, d=3);
+                translate ([size-5,5,-1]) cylinder(h=thick+2, d=3);
+                translate ([5,size-5,-1]) cylinder(h=thick+2, d=3);
+                translate ([5,5,-1]) cylinder(h=thick+2, d=3);
+            }
+            translate([9.5,8,-2]) rotate([0,0,45]) cube([size,2,thick+4]);
+            translate([8.5,size-10,-2]) rotate([0,0,-45]) cube([size,2,thick+4]);
+        } 
+    }
+    if(style == 2 && size >= 80) {
+        difference() {
+            union () {
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-2);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-8);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-14);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-20);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-26);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-32);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-38);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-44);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-50);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-56);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-62);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-68);
+                }
+                difference() {
+                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-74);
+                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-79);
+                }
+                if(size == 92) {
+                    difference() {
+                        translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-86);
+                        translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-92);
+                    }
+                }
+                // mount holes
+                translate ([size-3.75,size-3.75,-1]) cylinder(h=thick+2, d=3);
+                translate ([size-3.75,3.75,-1]) cylinder(h=thick+2, d=3);
+                translate ([3.75,size-3.75,-1]) cylinder(h=thick+2, d=3);
+                translate ([3.75,3.75,-1]) cylinder(h=thick+2, d=3);
+            }
+            translate([6.5,4.25,-2]) rotate([0,0,45]) cube([size*1.2,3,thick+4]);
+            translate([4.25,size-6.5,-2]) rotate([0,0,-45]) cube([size*1.2,3,thick+4]);
+        } 
+    }
+    if(style == 3) {
+        inner = size == 30 ? 24 :
+            size == 40 ? 32 :
+            size == 50 ? 40 :
+                size == 60 ? 50 :
+                size == 70 ? 61.9 :
+                    size == 80 ? 71.5 :
+                    size * 0.8; // Use 80% as default
+        
+        rings = size <= 40 ? 4 : 6;
+        bar_size = size <= 40 ? 2 : 3;
+
+        screw_offset = inner / 2;
+        center_point = size * 0.5;
+        base_ring_size = size * 0.95;
+        rings_spacing = size / rings;
+
+        translate([size/2, size/2, -1])
+        union() {
+            translate([screw_offset, screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
+            translate([-screw_offset, screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
+            translate([screw_offset, -screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
+            translate([-screw_offset, -screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
+
+            difference() {
+            union() {
+                for(i=[inner:-rings_spacing:0]) {
+                    difference() {
+                        cylinder(d=base_ring_size - i, h=thick+2);
+                        translate([0, 0, -1]) cylinder(d=base_ring_size - i - (rings_spacing/2), h=thick+4);
+                    }
+                }
+            }
+                
+            translate([0, 0, -1]) union() {
+                cylinder(d=bar_size*2+0.1, thick+6); // Add a circle to prevent any tiny holes around cross bar
+                rotate([0, 0, 45]) cube([size, bar_size, 12], center=true);
+                rotate([0, 0, 45]) cube([bar_size, size, 12], center=true);
+            }
+            }
+        }
+    }
+}
diff --git a/lib/fastener.scad b/lib/fastener.scad
new file mode 100644
index 0000000..529e7eb
--- /dev/null
+++ b/lib/fastener.scad
@@ -0,0 +1,48 @@
+/*
+
+    m_insert(type="M3", icolor = "#ebdc8b")
+
+*/
+
+module m_insert(type="M3", icolor = "#ebdc8b") { //#f4e6c3, #ebdc8b 
+    
+    odiam = type == "M3" ? 4.2 : 3.5;
+    idiam = type == "M3" ? 3 : 2.5;
+    iheight = 4;
+    
+    difference() {
+        color(icolor,.6) cylinder(d=odiam, h=iheight);
+        color(icolor,.6) translate([0,0,-1]) cylinder(d=idiam, h=iheight+2);
+    }
+    for(bearing = [0:10:360]) {
+        color(icolor) translate([-.25+(odiam/2)*cos(bearing),-.25+(odiam/2)*sin(bearing),iheight-1.5]) 
+            rotate([0,0,0]) cube([.5,.5,1.5]);
+    }
+}
+
+
+// General purpose screw
+// screw(screw[d, l, style])
+// 	d - thread diameter
+// 	l - thread length
+// 	style - screw head style
+//
+// 	Styles:
+// 	0 - Mushroom head, 5mm diameter
+
+module screw(screw_type) {
+    d = screw_type[0];
+    l = screw_type[1];
+    style = screw_type[2];
+
+    // Head
+        if(style == 0) {
+            difference() {
+                translate([  0,  0, -0.3]) sphere(2.7);
+                translate([-10,-10,-10]) cube([20,20,10]);
+                translate([-10,-10,  2]) cube([20,20,10]);
+            }
+        }
+    // Thread
+        rotate([180,0,0]) cylinder(d=d, h=l);
+}
diff --git a/lib/feet.scad b/lib/feet.scad
new file mode 100644
index 0000000..e31b40f
--- /dev/null
+++ b/lib/feet.scad
@@ -0,0 +1,15 @@
+/*
+
+    feet (height)
+
+*/
+
+/* case feet */
+module feet (diameter,height) {
+    
+    difference (){ 
+        cylinder (d=diameter,h=height);
+        translate([0,0,-1]) cylinder (d=3, h=height+2,$fn=90);
+        translate ([0,0,-1]) cylinder(r=3.35,h=height-3,$fn=6);       
+    }
+}
diff --git a/lib/hd.scad b/lib/hd.scad
new file mode 100644
index 0000000..dc08cf3
--- /dev/null
+++ b/lib/hd.scad
@@ -0,0 +1,592 @@
+/*
+
+    hd_mount(hd,orientation,position,side)
+    hd25_tab(side)
+    hd25_vtab(side)
+    hd35_tab(side)
+    hd35_vtab(side)
+    hd_bottom_holes(hd,orientation,position,side,thick)
+    hd25(height)
+    hd35()
+    hdd35_25holder(length)
+
+*/
+
+module hd_mount(hd,orientation,position,side) {
+
+    adjust = .01;
+    $fn = 90;
+    if(hd == 2.5) {
+        if(orientation == "portrait") {
+            if(position == "vertical") {
+                if(side == "left") {
+                    translate([0,14,0]) rotate([0,0,0]) hd25_vtab("right");
+                    translate([0,90.6,0]) rotate([0,0,0]) hd25_vtab("right");
+                }
+                else {  // right
+                    translate([0,14,0]) rotate([0,0,0]) hd25_vtab("left");
+                    translate([0,90.6,0]) rotate([0,0,0]) hd25_vtab("left");
+                }
+            }
+            else {
+                translate([-.5,14,0]) hd25_tab("left");
+                translate([-.5,90.6,0]) hd25_tab("left");
+                translate([70.35,14,0]) hd25_tab("right");
+                translate([70.35,90.6,0]) hd25_tab("right");
+            }
+        }
+        if(orientation == "landscape") {
+            if(position == "vertical") {
+                if(side == "left") {
+                    translate([9.4,0,0]) rotate([0,0,90]) hd25_vtab("right");
+                    translate([86,0,0])  rotate([0,0,90]) hd25_vtab("right");
+                }
+                else {  // right
+                    translate([9.4,0,0]) rotate([0,0,90]) hd25_vtab("left");
+                    translate([86,0,0])  rotate([0,0,90]) hd25_vtab("left");
+                }
+            }
+            else {
+                translate([9.4,4.07-4.5,0]) rotate([0,0,90]) hd25_tab("left");
+                translate([86,4.07-4.5,0])  rotate([0,0,90]) hd25_tab("left");
+                translate([86,65.79+4.5,0]) rotate([0,0,90]) hd25_tab("right");
+                translate([9.4,65.79+4.5,0]) rotate([0,0,90]) hd25_tab("right");
+            }
+        }
+    }
+    if(hd == 3.5) {
+        if(orientation == "portrait") {
+            if(position == "vertical") {
+                if(side == "left") {
+                    translate([0,41.28,0]) rotate([0,0,0]) hd35_vtab("right");
+                    translate([0,41.28+44.45,0]) rotate([0,0,0]) hd35_vtab("right");
+                    translate([0,41.28+76.20,0]) rotate([0,0,0]) hd35_vtab("right");
+                }
+                else {  // right
+                    translate([0,41.28,0]) rotate([0,0,0]) hd35_vtab("left");
+                    translate([0,41.28+44.45,0]) rotate([0,0,0]) hd35_vtab("left");
+                    translate([0,41.28+76.20,0]) rotate([0,0,0]) hd35_vtab("left");
+                }
+            }
+            else {
+                translate([-.5,28.5,0]) hd35_tab("left");
+                translate([-.5,69.75,0]) hd35_tab("left");
+                translate([-.5,130.1,0]) hd35_tab("left");
+                translate([101.6+.5,28.5,0]) hd35_tab("right");
+                translate([101.6+.5,69.75,0]) hd35_tab("right");
+                translate([101.6+.5,130.1,0]) hd35_tab("right");
+            }
+        }
+        if(orientation == "landscape") {
+            if(position == "vertical") {
+                if(side == "left") {
+                    translate([9.4,0,0]) rotate([0,0,90]) hd35_vtab("right");
+                    translate([86,0,0])  rotate([0,0,90]) hd35_vtab("right");
+                }
+                else {  // right
+                    translate([9.4,0,0]) rotate([0,0,90]) hd35_vtab("left");
+                    translate([86,0,0])  rotate([0,0,90]) hd35_vtab("left");
+                }
+            }
+            else {
+                translate([16.9,-.5,0]) rotate([0,0,90]) hd35_tab("left");
+                translate([76.6,-.5,0])  rotate([0,0,90]) hd35_tab("left");
+                translate([118.5,-.5,0]) rotate([0,0,90]) hd35_tab("left");
+                translate([16.9,101.6-.5,0]) rotate([0,0,90]) hd35_tab("right");
+                translate([76.6,101.6-.5,0]) rotate([0,0,90]) hd35_tab("right");
+                translate([118.5,101.6-.5,0]) rotate([0,0,90]) hd35_tab("right");
+            }
+        }
+    }
+}
+
+
+module hd25_tab(side) {
+
+    width = 15;
+    l_width = 26;
+    depth = 15;
+    height = 4;
+    fillet = 2;
+    hole = 3.6;
+    length = 3;
+    
+    adjust = .01;
+    $fn = 90;
+    if(side == "left") {
+        difference() {
+            union() {
+                translate([0,-depth/2,0]) rotate([0,-90,0]) 
+                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
+                translate([-height,-depth/2,0]) cube([height,depth,height]);
+                translate([adjust,-5.5,depth]) 
+                    rotate([90,0,0]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+                translate([adjust,7.5,depth]) 
+                    rotate([90,0,0]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+            }
+            translate([4.07,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
+            translate([-height-adjust,(width/2)-(length/2)-depth/2,3]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
+            translate([-height-adjust,(width/2)-(length/2)-depth/2,21]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
+        }
+    }
+    if(side == "right") {
+        difference() {
+            union() {
+                translate([height,-depth/2,0]) rotate([0,-90,0]) 
+                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
+                translate([0,-depth/2,0]) cube([height,depth,height]);
+                translate([adjust,-7.5,depth]) 
+                    rotate([90,0,180]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+                translate([adjust,5.5,depth]) 
+                    rotate([90,0,180]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+            }
+            translate([-4.07,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
+            translate([-adjust,(width/2)-(length/2)-depth/2,3]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
+            translate([-adjust,(width/2)-(length/2)-depth/2,21]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
+        }
+    }
+}
+
+
+module hd25_vtab(side) {
+    
+    width = 15;
+    l_width = 16;
+    depth = 15;
+    height = 4;
+    fillet = 2;
+    hole = 3.6;
+    length = 3;
+    
+    adjust = .01;
+    $fn = 90;
+    if(side == "left") {
+        difference() {
+            union() {
+                translate([0,-depth/2,0]) rotate([0,-90,0]) 
+                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
+                translate([-height,-depth/2,0]) cube([height,depth,height]);
+                translate([adjust,-5.5,depth]) 
+                    rotate([90,0,0]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height-5],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+                translate([adjust,7.5,depth]) 
+                    rotate([90,0,0]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height-5],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+            }
+            translate([3,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
+            translate([-height-adjust,1.5+(width/2)-(length/2)-depth/2,5.57]) rotate([90,90,90]) slot(hole,length,height+(2*adjust));
+        }
+    }
+    if(side == "right") {
+        difference() {
+            union() {
+                translate([height,-depth/2,0]) rotate([0,-90,0]) 
+                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
+                translate([0,-depth/2,0]) cube([height,depth,height]);
+                translate([adjust,-7.5,depth]) 
+                    rotate([90,0,180]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height-5],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+                translate([adjust,5.5,depth]) 
+                    rotate([90,0,180]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height-5],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+            }
+            translate([-3,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
+            translate([-adjust,1.5+(width/2)-(length/2)-depth/2,5.57]) rotate([90,90,90]) slot(hole,length,height+(2*adjust));
+        }
+    }
+}
+
+
+module hd35_tab(side) {
+
+    width = 15;
+    l_width = 46;
+    depth = 15;
+    height = 4;
+    fillet = 2;
+    hole = 3.6;
+    length = 3;
+    
+    adjust = .01;
+    $fn = 90;    
+    if(side == "left") {
+        difference() {
+            union() {
+                translate([0,-depth/2,0]) rotate([0,-90,0]) 
+                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
+                translate([-height,-depth/2,0]) cube([height,depth,height]);
+
+                translate([adjust,-5.5,depth]) 
+                    rotate([90,0,0]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height+20],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+                translate([adjust,7.5,depth]) 
+                    rotate([90,0,0]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height+20],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+
+            }
+            translate([3.18,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
+            translate([-height-adjust,(width/2)-(length/2)-depth/2,6.35]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
+            translate([-height-adjust,(width/2)-(length/2)-depth/2,38.35]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
+        }
+    }
+    if(side == "right") {
+        difference() {
+            union() {
+                translate([height,-depth/2,0]) rotate([0,-90,0]) 
+                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
+                translate([0,-depth/2,0]) cube([height,depth,height]);
+
+                translate([adjust,-7.5,depth]) 
+                    rotate([90,0,180]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height+20],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+                translate([adjust,5.5,depth]) 
+                    rotate([90,0,180]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height+20],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+
+            }
+            translate([-3.18,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
+            translate([-adjust,(width/2)-(length/2)-depth/2,6.35]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
+            translate([-adjust,(width/2)-(length/2)-depth/2,38.35]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
+        }
+    }
+}
+
+module hd35_vtab(side) {
+    
+    width = 15;
+    l_width = 16;
+    depth = 15;
+    height = 4;
+    fillet = 2;
+    hole = 3.6;
+    length = 3;
+    
+    adjust = .01;
+    $fn = 90;
+    if(side == "left") {
+        difference() {
+            union() {
+                translate([0,-depth/2,0]) rotate([0,-90,0]) 
+                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
+                translate([-height,-depth/2,0]) cube([height,depth,height]);
+                translate([adjust,-5.5,depth]) 
+                    rotate([90,0,0]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height-5],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+                translate([adjust,7.5,depth]) 
+                    rotate([90,0,0]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height-5],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+            }
+            translate([3,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
+            translate([-height-adjust,1.5+(width/2)-(length/2)-depth/2,5.57]) rotate([90,90,90]) slot(hole,length,height+(2*adjust));
+        }
+    }
+    if(side == "right") {
+        difference() {
+            union() {
+                translate([height,-depth/2,0]) rotate([0,-90,0]) 
+                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
+                translate([0,-depth/2,0]) cube([height,depth,height]);
+                translate([adjust,-7.5,depth]) 
+                    rotate([90,0,180]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height-5],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+                translate([adjust,5.5,depth]) 
+                    rotate([90,0,180]) 
+                        linear_extrude(height = 2) 
+                            polygon(points = [ [-height,height-5],
+                                [-depth+4,-depth], 
+                                [-height,-depth]]);
+            }
+            translate([-3,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
+            translate([-adjust,1.5+(width/2)-(length/2)-depth/2,5.57]) rotate([90,90,90]) slot(hole,length,height+(2*adjust));
+        }
+    }
+}
+
+
+module hd_bottom_holes(hd,orientation,position,side,thick) {
+
+    adjust = .01;
+    $fn = 90;
+    if(hd == 2.5) {
+        if(orientation == "portrait") {
+            if(position == "vertical") {
+                if(side == "left") {
+                    translate([-3,14,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                    translate([-3,90.6,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                }
+                else {
+                    // portrait 2.5" bottom screw holes
+                    translate([3,14,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                    translate([3,90.6,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                }
+            }
+            else {
+                // portrait 2.5" bottom screw holes
+                translate([4.07,14,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([4.07,90.6,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([65.79,90.6,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([65.79,14,0]) cylinder(d=3.6,h=thick+(adjust*2));
+            
+            }
+        }
+        if(orientation == "landscape") {
+            if(position == "vertical") {
+                if(side == "left") {
+                    translate([9.4,-3,0]) cylinder(d=3.6,h=thick+5);
+                    translate([86,-3,0]) cylinder(d=3.6,h=thick+5);
+                }
+                else {
+                    echo(side);
+                    translate([9.4,3,0]) cylinder(d=3.6,h=thick+5);
+                    translate([86,3,0]) cylinder(d=3.6,h=thick+5);
+                }
+            }
+            else {
+                // landscape 2.5" bottom screw holes
+                translate([9.4,4.07,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([86,4.07,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([86,65.79,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([9.4,65.79,0]) cylinder(d=3.6,h=thick+(adjust*2));
+            }
+        }
+    }
+    if(hd == 3.5) {
+        if(orientation == "portrait") {
+            if(position == "vertical") {
+                if(side == "left") {
+                    translate([-6,28.5,0]) cylinder(d=3.6,h=thick+5);
+                    translate([-6,70.5,0]) cylinder(d=3.6,h=thick+5);
+                    translate([-6,28.5+101.6,0]) cylinder(d=3.6,h=thick+5);
+                }
+                else {
+                    // portrait 3.5" bottom screw holes
+                    translate([6,28.5,0]) cylinder(d=3.6,h=thick+5);
+                    translate([6,70.5,0]) cylinder(d=3.6,h=thick+5);
+                    translate([6,28.5+101.6,0]) cylinder(d=3.6,h=thick+5);
+                }
+            }
+            else {
+                // portrait 3.5" bottom screw holes
+                translate([3.18,41.28,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([3.18,85.73,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([3.18,117.48,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([98.43,41.28,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([98.43,85.73,0]) cylinder(d=3.6,h=thick+(adjust*2));
+                translate([98.43,117.48,0]) cylinder(d=3.6,h=thick+(adjust*2));
+            }
+        }
+        if(orientation == "landscape") {
+            // landscape 3.5" bottom screw holes
+            translate([29.52,3.18,0]) cylinder(d=3.6,h=thick+(adjust*2));
+            translate([61.27,3.18,0]) cylinder(d=3.6,h=thick+(adjust*2));
+            translate([105.72,3.18,0]) cylinder(d=3.6,h=thick+(adjust*2));
+            translate([29.52,98.43,0]) cylinder(d=3.6,h=thick+(adjust*2));
+            translate([61.27,98.43,0]) cylinder(d=3.6,h=thick+(adjust*2));
+            translate([105.72,98.43,0]) cylinder(d=3.6,h=thick+(adjust*2));
+        }
+    }
+}
+
+
+/* hard drive 2.5", height=drive height */
+module hd25(height) {
+    
+    hd25_x = 100;
+    hd25_y = 69.85;
+    hd25_z = height;
+    
+    adjust = .01;
+    $fn=90;
+    
+    difference() {
+        color("LightGrey",.6) cube([hd25_x,hd25_y,hd25_z]);
+        
+        // bottom screw holes
+        color("Black",.6) translate([9.4,4.07,-adjust]) cylinder(d=3,h=3);
+        color("Black",.6) translate([86,4.07,-adjust]) cylinder(d=3,h=3);
+        color("Black",.6) translate([86,65.79,-adjust]) cylinder(d=3,h=4);
+        color("Black",.6) translate([9.4,65.79,-adjust]) cylinder(d=3,h=4);
+
+        // side screw holes
+        color("Black",.6) translate([9.4,-adjust,3]) rotate([-90,0,0]) cylinder(d=3,h=3);
+        color("Black",.6) translate([86,-adjust,3]) rotate([-90,0,0])  cylinder(d=3,h=3);
+        color("Black",.6) translate([86,hd25_y+adjust,3]) rotate([90,0,0])  cylinder(d=3,h=3);
+        color("Black",.6) translate([9.4,hd25_y+adjust,3]) rotate([90,0,0])  cylinder(d=3,h=3);
+
+        // connector opening
+        color("LightSlateGray",.6) translate([hd25_x-5,11,-1]) cube([5+adjust,32,5+adjust]);
+    }
+}
+
+
+/* hard drive 3.5" */
+module hd35() {
+    
+    hd35_x = 147;
+    hd35_y = 101.6;
+    hd35_z = 26.1;
+    
+    adjust = .01;    
+    $fn=90;
+    
+    difference() {
+        color("LightGrey",.6) cube([hd35_x,hd35_y,hd35_z]);
+        
+        // bottom screw holes
+        color("Black",.6) translate([29.52,3.18,-adjust]) cylinder(d=3,h=3+adjust);
+        color("Black",.6) translate([61.27,3.18,-adjust]) cylinder(d=3,h=3+adjust);
+        color("Black",.6) translate([105.72,3.18,-adjust]) cylinder(d=3,h=3+adjust);
+        color("Black",.6) translate([29.52,98.43,-adjust]) cylinder(d=3,h=3+adjust);
+        color("Black",.6) translate([61.27,98.43,-adjust]) cylinder(d=3,h=3+adjust);
+        color("Black",.6) translate([105.72,98.43,-adjust]) cylinder(d=3,h=3+adjust);
+        
+        // side screw holes
+        color("Black",.6) translate([16.9,-adjust,6.35]) rotate([-90,0,0]) cylinder(d=3,h=3);
+        color("Black",.6) translate([76.6,-adjust,6.35]) rotate([-90,0,0])  cylinder(d=3,h=3);
+        color("Black",.6) translate([118.5,-adjust,6.35]) rotate([-90,0,0])  cylinder(d=3,h=3);
+        color("Black",.6) translate([118.5,hd35_y+adjust,6.35]) rotate([90,0,0])  cylinder(d=3,h=3);
+        color("Black",.6) translate([76.6,hd35_y+adjust,6.35]) rotate([90,0,0])  cylinder(d=3,h=3);
+        color("Black",.6) translate([16.9,hd35_y+adjust,6.35]) rotate([90,0,0])  cylinder(d=3,h=3);
+
+        // connector opening
+        color("LightSlateGray",.6) translate([hd35_x-5,11,-1]) cube([5+adjust,32,5+adjust]);
+
+    }
+}
+
+
+/* 3.5" hdd to 2.5" hdd holder */
+module hdd35_25holder(length,width=101.6) {
+    wallthick = 3;
+    floorthick = 2;
+    hd35_x = length;                    // 145mm for 3.5" drive
+    hd35_y = width;
+    hd35_z = 12;
+    hd25_x = 100;
+    hd25_y = 69.85;
+    hd25_z = 9.5;
+    hd25_xloc = 2;                     // or (hd35_x-hd25_x)/2
+    hd25_yloc = (hd35_y-hd25_y)/2;
+    hd25_zloc = 9.5;
+    adjust = .1;    
+    $fn=90;
+    difference() {
+        union() {
+            difference() {
+                translate([(hd35_x/2),(hd35_y/2),(hd35_z/2)])         
+                    cube_fillet_inside([hd35_x,hd35_y,hd35_z], 
+                        vertical=[3,3,3,3], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);      
+                translate([(hd35_x/2),(hd35_y/2),(hd35_z/2)+floorthick])           
+                    cube_fillet_inside([hd35_x-(wallthick*2),hd35_y-(wallthick*2),hd35_z], 
+                        vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                   
+                // end trim
+                translate([-adjust,5,wallthick+2]) cube([wallthick+(adjust*2),hd35_y-10,10]);
+                translate([hd35_x-wallthick-adjust,5,wallthick+2]) cube([wallthick+(adjust*2),hd35_y-10,10]);
+                
+                // bottom vents
+                for ( r=[15:40:hd35_x-40]) {
+                    for (c=[hd35_y-76:4:75]) {
+                        translate ([r,c,-adjust]) cube([35,2,wallthick+(adjust*2)]);
+                    }
+                }       
+            }
+            // 2.5 hdd bottom support
+            translate([9.4+hd25_xloc,4.07+hd25_yloc,floorthick-adjust]) cylinder(d=8,h=4);
+            translate([86+hd25_xloc,4.07+hd25_yloc,floorthick-adjust]) cylinder(d=8,h=4);
+            translate([86+hd25_xloc,65.79+hd25_yloc,floorthick-adjust]) cylinder(d=8,h=4);
+            translate([9.4+hd25_xloc,65.79+hd25_yloc,floorthick-adjust]) cylinder(d=8,h=4);
+        
+        // side nut holder support    
+        translate([16,wallthick-adjust,7]) rotate([-90,0,0]) cylinder(d=10,h=3);
+        translate([76,wallthick-adjust,7]) rotate([-90,0,0])  cylinder(d=10,h=3);
+            if(length >= 120) {
+                translate([117.5,wallthick-adjust,7]) rotate([-90,0,0])  cylinder(d=10,h=3);
+                translate([117.5,hd35_y-wallthick+adjust,7]) rotate([90,0,0])  cylinder(d=10,h=3);
+            }
+        translate([76,hd35_y-wallthick+adjust,7]) rotate([90,0,0])  cylinder(d=10,h=3);
+        translate([16,hd35_y-wallthick+adjust,7]) rotate([90,0,0])  cylinder(d=10,h=3);
+        
+        // bottom-side support
+        translate([wallthick,wallthick,floorthick-2]) rotate([45,0,0]) cube([hd35_x-(wallthick*2),3,3]);
+        translate([wallthick,hd35_y-wallthick+adjust,floorthick-2]) rotate([45,0,0]) cube([hd35_x-(wallthick*2),3,3]);
+         
+        }
+        // bottom screw holes
+        translate([9.4+hd25_xloc,4.07+hd25_yloc,-adjust]) cylinder(d=3,h=(floorthick*3)+(adjust*2));
+        translate([86+hd25_xloc,4.07+hd25_yloc,-adjust]) cylinder(d=3,h=(floorthick*3)+(adjust*2));
+        translate([86+hd25_xloc,65.79+hd25_yloc,-adjust]) cylinder(d=3,h=(floorthick*3)+(adjust*2));
+        translate([9.4+hd25_xloc,65.79+hd25_yloc,-adjust]) cylinder(d=3,h=(floorthick*3)+(adjust*2));
+        
+         // countersink holes
+        translate([9.4+hd25_xloc,4.07+hd25_yloc,-adjust]) cylinder(d1=6.5, d2=3, h=3);
+        translate([86+hd25_xloc,4.07+hd25_yloc,-adjust]) cylinder(d1=6.5, d2=3, h=3);
+        translate([86+hd25_xloc,65.79+hd25_yloc,-adjust]) cylinder(d1=6.5, d2=3, h=3);
+        translate([9.4+hd25_xloc,65.79+hd25_yloc,-adjust]) cylinder(d1=6.5, d2=3, h=3);
+       
+        // side screw holes
+        translate([16,-adjust,7]) rotate([-90,0,0]) cylinder(d=3.6,h=7);
+        translate([76,-adjust,7]) rotate([-90,0,0])  cylinder(d=3.6,h=7);
+        translate([117.5,-adjust,7]) rotate([-90,0,0])  cylinder(d=3.6,h=7);
+        translate([117.5,hd35_y+adjust,7]) rotate([90,0,0])  cylinder(d=3.6,h=7);
+        translate([76,hd35_y+adjust,7]) rotate([90,0,0])  cylinder(d=3.6,h=7);
+        translate([16,hd35_y+adjust,7]) rotate([90,0,0])  cylinder(d=3.6,h=7);
+        
+        // side nut trap    
+        translate([16,wallthick-adjust,7]) rotate([-90,0,0]) cylinder(r=3.30,h=5,$fn=6);
+        translate([76,wallthick-adjust,7]) rotate([-90,0,0])  cylinder(r=3.30,h=5,$fn=6);
+        translate([117.5,wallthick-adjust,7]) rotate([-90,0,0])  cylinder(r=3.30,h=5,$fn=6);
+        translate([117.5,hd35_y-wallthick-adjust,7]) rotate([90,0,0])  cylinder(r=3.30,h=5,$fn=6);
+        translate([76,hd35_y-wallthick-adjust,7]) rotate([90,0,0])  cylinder(r=3.30,h=5,$fn=6);
+        translate([16,hd35_y-wallthick-adjust,7]) rotate([90,0,0])  cylinder(r=3.30,h=5,$fn=6);
+    }
+}
diff --git a/lib/holder.scad b/lib/holder.scad
new file mode 100644
index 0000000..b76a81e
--- /dev/null
+++ b/lib/holder.scad
@@ -0,0 +1,364 @@
+/*
+
+    pcb_holder(size,wallthick)
+    nut_holder(nut, style, dia_x, dia_y, height)
+    vu_holder(vu_model,side,vesa,cheight)
+
+*/
+
+// pcb bottom edge holder
+module pcb_holder(size,wallthick) {
+    
+    adjust=.01;
+    $fn = 90;    
+    difference() {
+        union() {
+            translate([-1.85,-1.75,0]) cube([size[0]+3.5,5,6]);
+                translate([size[0]+1.65,-5.75,1]) 
+                    rotate([0,-90,0]) 
+                    linear_extrude(height = size[0]+3.5) 
+                        polygon(points = [ [-wallthick/2,-wallthick/2],
+                            [2,wallthick], 
+                            [4,4], 
+                            [-wallthick/2,4]]);
+                translate([-1.85,4,1]) 
+                    rotate([0,-90,180]) 
+                    linear_extrude(height = size[0]+3.5) 
+                        polygon(points = [ [-wallthick/2,-wallthick/2],
+                            [2,wallthick], 
+                            [2,2], 
+                            [-wallthick/2,2]]);
+        }
+        translate([-.5,0,2]) cube([size[0]+1,size[2],5]);
+        translate([6,-adjust-5-1.75,-adjust]) cube([size[0]-12,14,8]);
+    }   
+}
+
+//
+// nut_holder(nut, style, dia_x, dia_y, height)
+//            nut = "m2", "m2.5", "m3", "m4"
+//            style = "default", "sloped", "trap"
+//            dia_x = top diameter or x size in mm
+//            dia_y = bottom diameter or y size in mm
+//            height = holder height in mm
+//
+module nut_holder(nut, style, dia_x, dia_y, height) {
+
+
+nuts = [[2,4,1.6],         // m2 size, diameter, height
+        [2.5,5,2],         // m2.5 size, diameter, height
+        [3,5.5,2.4],       // m3 size, diameter, height
+        [4,7,3.2]];        // m4 size, diameter, height
+
+$fn = 180;
+    
+    if( style == "default") {
+        difference() {
+            cylinder(d=dia_x, h=height);
+            if(nut == "m2") {
+                translate([0, 0, -1]) cylinder(d=nuts[0][0]+.25, h=height+2);
+                translate([0, 0, 2]) cylinder(d=nuts[0][1]*2/sqrt(3), h=height, $fn=6);
+            }
+            if(nut == "m2.5") {
+                translate([0, 0, -1]) cylinder(d=nuts[1][0]+.25, h=height+2);
+                translate([0, 0, 2]) cylinder(d=nuts[1][1]*2/sqrt(3), h=height, $fn=6);
+            }
+            if(nut == "m3") {
+                translate([0, 0, -1]) cylinder(d=nuts[2][0]+.5, h=height+2);
+                translate([0, 0, 2]) cylinder(d=nuts[2][1]*2/sqrt(3), h=height, $fn=6);
+            }
+            if(nut == "m4") {
+                translate([0, 0, -1]) cylinder(d=nuts[3][0]+.5, h=height+2);
+                translate([0, 0, 2]) cylinder(d=nuts[3][1]*2/sqrt(3), h=height, $fn=6);
+            }
+        }
+    }
+    if( style == "sloped") {
+        difference() {
+            cylinder(d2=dia_x, d1=dia_y, h=height);
+            if(nut == "m2") {
+                translate([0, 0, -1]) cylinder(d=nuts[0][0]+.25, h=height+2);
+                translate([0, 0, 2]) cylinder(d=nuts[0][1]*2/sqrt(3), h=height, $fn=6);
+            }
+            if(nut == "m2.5") {
+                translate([0, 0, -1]) cylinder(d=nuts[1][0]+.25, h=height+2);
+                translate([0, 0, 2]) cylinder(d=nuts[1][1]*2/sqrt(3), h=height, $fn=6);
+            }
+            if(nut == "m3") {
+                translate([0, 0, -1]) cylinder(d=nuts[2][0]+.5, h=height+2);
+                translate([0, 0, 2]) cylinder(d=nuts[2][1]*2/sqrt(3), h=height, $fn=6);
+            }
+            if(nut == "m4") {
+                translate([0, 0, -1]) cylinder(d=nuts[3][0]+.5, h=height+2);
+                translate([0, 0, 2]) cylinder(d=nuts[3][1]*2/sqrt(3), h=height, $fn=6);
+            }
+        }
+    }
+    if( style == "trap") {
+        if(nut == "m2") {
+            difference() {
+                translate([-dia_x/2, -dia_y/2, 0]) cube([dia_x, dia_y, height]);
+                translate([0, 0, -1]) cylinder(d=nuts[0][0]+.25, h=height+2);
+                translate([0, 0, 2]) rotate([0,0,30]) cylinder(d=nuts[0][1]*2/sqrt(3), h=nuts[0][2], $fn=6);
+                translate([-nuts[0][1]/2, 0, 2]) cube([nuts[0][1], dia_x, nuts[0][2]]);
+            }
+        }
+        if(nut == "m2.5") {
+            difference() {
+                translate([-dia_x/2, -dia_y/2, 0]) cube([dia_x, dia_y, height]);
+                translate([0, 0, -1]) cylinder(d=nuts[1][0]+.325, h=height+2);
+                translate([0, 0, 2]) rotate([0,0,30]) cylinder(d=nuts[1][1]*2/sqrt(3), h=nuts[1][2], $fn=6);
+                translate([-nuts[1][1]/2, 0, 2]) cube([nuts[1][1], dia_x, nuts[1][2]]);
+            }
+        }
+        if(nut == "m3") {
+            difference() {
+                translate([-dia_x/2, -dia_y/2, 0]) cube([dia_x, dia_y, height]);
+                translate([0, 0, -1]) cylinder(d=nuts[2][0]+.5, h=height+2);
+                translate([0, 0, 2]) rotate([0,0,30]) cylinder(d=nuts[2][1]*2/sqrt(3), h=nuts[2][2], $fn=6);
+                translate([-nuts[2][1]/2, 0, 2]) cube([nuts[2][1], dia_x, nuts[2][2]]);
+            }
+        }
+        if(nut == "m4") {
+            difference() {
+                translate([-dia_x/2, -dia_y/2, 0]) cube([dia_x, dia_y, height]);
+                translate([0, 0, -1]) cylinder(d=nuts[3][0]+.5, h=height+2);
+                translate([0, 0, 2]) rotate([0,0,30]) cylinder(d=nuts[3][1]*2/sqrt(3), h=nuts[3][2], $fn=6);
+                translate([-nuts[3][1]/2, 0, 2]) cube([nuts[3][1], dia_x, nuts[3][2]]);
+            }
+        }
+    }
+}
+
+module vu_holder(vu_model,side,vesa,cheight) {
+
+//cheight = case_z+90;
+v_fillet = 3;
+    
+vu5_case_x_offset = 6.5;                // for uniform front vu5=6.5, vu7=20
+vu5_pcb_width = 121;
+vu5_pcb_height = 93.31;
+vu5_width = vu5_pcb_width + vu5_case_x_offset;
+vu5_height = vu5_pcb_height + 9.75;
+    
+vu7_case_x_offset = 20;                 // for uniform front vu5=6.5, vu7=20
+vu7_pcb_width = 172.90;
+vu7_pcb_height = 124.27;
+vu7_width = vu7_pcb_width + vu7_case_x_offset;
+vu7_height = vu7_pcb_height + 9.75;
+
+        difference() {
+        union() {
+            if(side == "right") {
+                translate([width-wallthick-gap,-(2*wallthick)-gap,0]) 
+                    cube([sidethick,depth+2*wallthick,cheight]);
+                // right tabs for vu5 attachment
+                if(case_style == "vu5") {
+                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-39,
+                        case_z+80]) rotate([90-vu_rotation[0],180,0]) 
+                            slab_r([((width-vesa)/2)+4.5,10,sidethick], [.1,.1,3,3]);
+                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-26,
+                        case_z+31.5]) rotate([90-vu_rotation[0],180,0]) 
+                            slab_r([((width-vesa)/2)+4.5,10,sidethick], [.1,.1,3,3]);
+                
+                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-41.85-adj,
+                        case_z+79.25]) rotate([90-vu_rotation[0],180,0]) 
+                    difference() { 
+                        cube([sidethick,10,sidethick]);
+                        translate([0,-adj,sidethick]) rotate([0,45,0]) 
+                            cube([2*sidethick,10+(2*adj),sidethick]);
+                    }
+                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-28.85-adj,
+                        case_z+30.75]) rotate([90-vu_rotation[0],180,0])
+                    difference() { 
+                        cube([sidethick,10,sidethick]);
+                        translate([0,-adj,sidethick]) rotate([0,45,0]) 
+                            cube([2*sidethick,10+(2*adj),sidethick]);
+                    }
+                }
+                // right tabs for vu7 attachment
+                if(case_style == "vu7") {
+                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick-1,depth-49.40,
+                        case_z+vu7_height-15]) rotate([90-vu_rotation[0],180,0]) 
+                            slab_r([((width-vesa)/2)+12,10,sidethick], [.1,.1,3,3]);
+                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick-1,depth-23.60,
+                        case_z+22.5]) rotate([90-vu_rotation[0],180,0]) 
+                            slab_r([((width-vesa)/2)+12,10,sidethick], [.1,.1,3,3]);
+                    
+                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-52.25,
+                        case_z+vu7_height-15.75]) rotate([90-vu_rotation[0],180,0]) 
+                            difference() { 
+                                cube([sidethick,10,sidethick]);
+                                translate([0,-adj,sidethick]) rotate([0,45,0]) 
+                                    cube([2*sidethick,10+(2*adj),sidethick]);
+                            }
+                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-26.5,
+                        case_z+21.8]) rotate([90-vu_rotation[0],180,0])
+                            difference() { 
+                                cube([sidethick,10,sidethick]);
+                                translate([0,-adj,sidethick]) rotate([0,45,0]) 
+                                    cube([2*sidethick,10+(2*adj),sidethick]);
+                            }
+                }
+                // top rail
+                    translate([width-6.9-adj,-gap,case_z-floorthick-.5])
+                    cube([4,depth-2*(wallthick+gap),2]);
+            }
+            if(side == "left") {
+                translate([-wallthick-gap-sidethick,-(2*wallthick)-gap,0]) 
+                    cube([sidethick,depth+2*wallthick,cheight]);
+                // left tabs for vu5 attachment
+                if(case_style == "vu5") {
+                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-3.5-adj,depth-36.4,
+                        case_z+70]) rotate([90+vu_rotation[0],0,0]) 
+                            slab_r([((width-vesa)/2)+4,10, sidethick], [.1,.1,3,3]);
+                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-3.5-adj,depth-23.5,
+                        case_z+22]) rotate([90+vu_rotation[0],0,0]) 
+                            slab_r([((width-vesa)/2)+4,10,sidethick], [.1,.1,3,3]);
+                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-3.5-adj,depth-39.35+adj,
+                        case_z+69.25]) rotate([90+vu_rotation[0],0,0])
+                            difference() { 
+                                cube([sidethick,10,sidethick]);
+                                translate([0,-adj,sidethick]) rotate([0,45,0]) 
+                                    cube([2*sidethick,10+(2*adj),2*sidethick]);
+                            }                
+                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-3.5-adj,depth-26.4+adj,
+                        case_z+21.25]) rotate([90+vu_rotation[0],0,0])  
+                        difference() { 
+                            cube([sidethick,10,sidethick]);
+                            translate([0,-adj,sidethick]) rotate([0,45,0]) 
+                                cube([2*sidethick,10+(2*adj),2*sidethick]);
+                        }
+                }           
+                // left tabs for vu7 attachment
+                if(case_style == "vu7") {
+                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-4.25-adj,depth-46.85,
+                        case_z+vu7_height-24.5]) rotate([90+vu_rotation[0],0,0]) 
+                            slab_r([((width-vesa)/2),10, sidethick], [.1,.1,3,3]);
+                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-4.25-adj,depth-21,
+                        case_z+13]) rotate([90+vu_rotation[0],0,0]) 
+                            slab_r([((width-vesa)/2),10,sidethick], [.1,.1,3,3]);
+                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-4-adj,depth-49.75+adj,
+                        case_z+vu7_height-25.25]) rotate([90+vu_rotation[0],0,0])
+                            difference() { 
+                                cube([sidethick,10,sidethick]);
+                                translate([0,-adj,sidethick]) rotate([0,45,0]) 
+                                    cube([2*sidethick,10+(2*adj),2*sidethick]);
+                            }                
+                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-4-adj,depth-23.75+adj,
+                        case_z+12.25]) rotate([90+vu_rotation[0],0,0])  
+                        difference() { 
+                            cube([sidethick,10,sidethick]);
+                            translate([0,-adj,sidethick]) rotate([0,45,0]) 
+                                cube([2*sidethick,10+(2*adj),2*sidethick]);
+                        }
+                }
+                // top rail
+                translate([-wallthick-gap-adj,-gap,case_z-floorthick-.5]) 
+                        cube([4,depth-2*(wallthick+gap),2]);
+            }
+        }
+
+        if(side == "right") {
+            // vu5 shape and back cut
+            if(case_style == "vu5") {
+                translate([width+sidethick-2,-.6,case_z+sidethick+2.5]) 
+                    rotate([0,-90,0]) 
+                    linear_extrude(height = 2*sidethick) 
+                        polygon(points = [ [-sidethick,-sidethick-wallthick-5],
+                            [cheight-bottom_height-top_height-3,-sidethick-wallthick-5], 
+                            [cheight-bottom_height-top_height-3,depth-53], 
+                            [-sidethick,depth-33]]);
+                
+                translate([width-(sidethick/2),depth-8,case_z+(121/2)]) 
+                    rotate([vu_rotation[0],0,0]) 
+                        cube_fillet_inside([10,50,110],vertical=[v_fillet,v_fillet,v_fillet,v_fillet],
+                            top=[0,0,0,0],bottom=[3,3,3,3], $fn=90);
+                // tab holes
+                translate([width/2+(vesa/2)-3,depth-37,
+                    case_z+75]) rotate([90-vu_rotation[0],180,0]) cylinder(d=3, h=sidethick+1);
+                translate([width/2+(vesa/2)-3,depth-24,
+                    case_z+26.75]) rotate([90-vu_rotation[0],180,0]) cylinder(d=3, h=sidethick+1);
+            }
+            // vu7 shape and back cut
+            if(case_style == "vu7") {
+                translate([width+sidethick-2,-.6,case_z+sidethick+2.5]) 
+                    rotate([0,-90,0]) 
+                    linear_extrude(height = 2*sidethick) 
+                        polygon(points = [ [-sidethick,-sidethick-wallthick-5],
+                            [cheight-bottom_height-top_height-3,-sidethick-wallthick-5], 
+                            [cheight-bottom_height-top_height-3,depth-63], 
+                            [-sidethick,depth-33]]);
+                
+                translate([width-(sidethick/2),depth-10.5,case_z+70.5]) 
+                    rotate([vu_rotation[0],0,0]) 
+                        cube_fillet_inside([10,50,130],vertical=[v_fillet,v_fillet,v_fillet,v_fillet],
+                            top=[0,0,0,0],bottom=[3,3,3,3], $fn=90);
+                // tab holes
+                translate([width/2+(vesa/2)-10,depth-47,case_z+vu7_height-19.75]) 
+                    rotate([90-vu_rotation[0],180,0]) cylinder(d=3, h=sidethick+4);
+                translate([width/2+(vesa/2)-10,depth-21.25,case_z+18]) 
+                    rotate([90-vu_rotation[0],180,0]) cylinder(d=3, h=sidethick+4);
+            }
+            // bottom attachment holes                         
+            translate([width-wallthick-gap-adj-5,wallthick+gap+10,
+                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adj)+10);
+            translate([width-wallthick-gap-adj-5,depth-wallthick-gap-10,
+                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adj)+10);
+        }
+
+        if(side == "left") {
+            // vu5 shape and back cut
+            if(case_style == "vu5") {
+                translate([-sidethick-adj,-.6,case_z+sidethick+2.5]) 
+                    rotate([0,-90,0]) 
+                        linear_extrude(height = 2*sidethick) 
+                            polygon(points = [ [-sidethick,-sidethick-wallthick-5],
+                                [cheight-bottom_height-top_height-3,-sidethick-wallthick-5], 
+                                [cheight-bottom_height-top_height-3,depth-53], 
+                                [-sidethick,depth-33]]);
+                
+                translate([-wallthick-gap-(sidethick/2),depth-8,case_z+(121/2)]) 
+                    rotate([vu_rotation[0],0,0]) 
+                        cube_fillet_inside([10,50,110],vertical=[v_fillet,v_fillet,v_fillet,v_fillet],
+                            top=[0,0,0,0],bottom=[3,3,3,3], $fn=90);
+                // tab holes
+                translate([width/2-(vesa/2)-3,depth-36.75,case_z+75]) 
+                    rotate([90+vu_rotation[0],0,0]) cylinder(d=3, h=sidethick+1);
+                translate([width/2-(vesa/2)-3,depth-24.25,case_z+26.75]) 
+                    rotate([90+vu_rotation[0],0,0])  cylinder(d=3, h=sidethick+1);
+            }
+            // vu7 shape and back cut
+            if(case_style == "vu7") {
+                translate([-sidethick-adj,-.6,case_z+sidethick+2.5]) 
+                    rotate([0,-90,0]) 
+                        linear_extrude(height = 2*sidethick) 
+                            polygon(points = [ [-sidethick,-sidethick-wallthick-5],
+                                [cheight-bottom_height-top_height-3,-sidethick-wallthick-5], 
+                                [cheight-bottom_height-top_height-3,depth-63], 
+                                [-sidethick,depth-33]]);
+                
+                translate([-wallthick-gap-(sidethick/2),depth-10.5,case_z+70.5]) 
+                    rotate([vu_rotation[0],0,0]) 
+                        cube_fillet_inside([10,50,130],vertical=[v_fillet,v_fillet,v_fillet,v_fillet],
+                            top=[0,0,0,0],bottom=[3,3,3,3], $fn=90);
+                // tab holes
+                translate([width/2-(vesa/2)-10,depth-48,case_z+vu7_height-19.75]) 
+                    rotate([90+vu_rotation[0],0,0]) cylinder(d=3, h=sidethick+4);
+                translate([width/2-(vesa/2)-10,depth-22.25,case_z+18]) 
+                    rotate([90+vu_rotation[0],0,0])  cylinder(d=3, h=sidethick+4);
+            }
+            // bottom attachment holes
+            translate([-sidethick-adj-6,wallthick+gap+10,((bottom_height+floorthick)/2)-1]) 
+                rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adj)+10);
+            if(depth >= 75) {
+                translate([-sidethick-adj-6,depth-wallthick-gap-10,
+                    ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adj)+10);
+            }
+            else {
+                translate([-sidethick-adj-6,wallthick+gap+40.5,((bottom_height+floorthick)/2)-1])
+                    rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adj)+10);                        
+            }
+        }
+    }
+}
diff --git a/lib/keyhole.scad b/lib/keyhole.scad
new file mode 100644
index 0000000..7ece62f
--- /dev/null
+++ b/lib/keyhole.scad
@@ -0,0 +1,51 @@
+/*
+
+    keyhole(keysize, mask = false)
+
+*/
+
+// enclosed keyhole
+module keyhole(keysize, mask = false) {
+    
+    adjust=.01;
+    $fn = 90;
+
+    if(mask == true) {
+        union() {
+            translate([0, 0, -adjust]) cylinder(h=keysize[3]+2*adjust, d=keysize[0]);
+            translate([-keysize[1]/2, 0, -adjust]) cube([keysize[1], keysize[2]+keysize[0]/2, keysize[3]+2*adjust]);
+            translate([0, -keysize[1]/2, -adjust]) cube([keysize[2]+keysize[0]/2, keysize[1], keysize[3]+2*adjust]);
+        }
+    }
+    else {
+        difference() {
+            union() {
+                translate([0, 0, -adjust]) 
+                difference() {
+                    difference() {
+                        translate([-keysize[2], -keysize[2], keysize[3]]) cube([keysize[2]*3, keysize[2]*3, 4.5]);
+                        translate([0, -10, 0]) rotate([0, 0, 135]) cube([20, 10, 10]);
+                        translate([keysize[2], keysize[2], -adjust]) cube([keysize[2]*3, keysize[2]*3, keysize[3]+5]);        
+                    }
+                    difference() {
+                        translate([-keysize[2]+2, -keysize[2]+2, keysize[3]-adjust]) 
+                            cube([-4+keysize[2]*3, -4+keysize[2]*3, 3.5]);
+                        translate([2, -10, 0]) rotate([0, 0, 135]) cube([20, 10, 10]);
+                        translate([+keysize[2]-2, keysize[2]-2, -adjust]) 
+                            cube([keysize[2]*3, keysize[2]*3, keysize[3]+5]);        
+                    }
+                }
+                difference() {   
+                    translate([-keysize[2], -keysize[2], 0]) cube([keysize[2]*3, keysize[2]*3, keysize[3]]);
+                    translate([0, -10, -adjust]) rotate([0, 0, 135]) cube([20, 10, 10]);
+                }   
+            }
+            translate([keysize[2], keysize[2], -adjust]) cube([keysize[2]*3, keysize[2]*3, keysize[3]+2*adjust]);        
+            union() {
+                translate([0, 0, -adjust]) cylinder(h=keysize[3]+2*adjust, d=keysize[0]);
+                translate([-keysize[1]/2, 0, -adjust]) cube([keysize[1], keysize[2]+keysize[0]/2, keysize[3]+2*adjust]);
+                translate([0, -keysize[1]/2, -adjust]) cube([keysize[2]+keysize[0]/2, keysize[1], keysize[3]+2*adjust]);
+            }
+        }
+    }
+}
diff --git a/lib/oem_hk.scad b/lib/oem_hk.scad
new file mode 100644
index 0000000..3fe85bb
--- /dev/null
+++ b/lib/oem_hk.scad
@@ -0,0 +1,1124 @@
+/*
+    uart_holder()
+    uart_strap ()
+    hc4_oled_holder(side,floorthick)
+    hk_wb2()
+    hc4_oled()
+    h2_netcard()
+    hk35_lcd()
+    hk_uart()
+    hk_vu7c(gpio_ext, tabs)
+    hk_vu8m(bracket)
+    u_bracket()
+    m1_hdmount()
+    hk_speaker()
+    hk_boom(speakers,orientation)
+    hk_boom_speaker(side,speaker,pcb)
+    boom_speaker()
+    hk_boom_grill(style,thick)
+    boom_speaker_holder(style,tolerance)
+    boom_speaker_strap()
+    boom_vring(tolerance)
+    hk_pwr_button(mask = false)
+    hk_m1s_case_holes
+    hk_m1s_ups()
+    proto_m1s()
+    proto_ups()
+
+*/
+
+/* odroid uart module holder */
+module hk_uart_holder() {
+
+    rotate([0,0,0]) 
+    translate ([0,0,0])
+        union () {
+            difference () {
+                translate ([0,0,0]) cube([18,24,9]);
+                translate ([2,-2,3]) cube([14,27,7]);
+                //pin slot
+                translate ([3.5,16,-1]) cube([11,1,5]);
+                //component bed
+                translate ([3.5,1.5,2]) cube ([11,14,2]);
+                //side trim
+                translate ([-1,-1,6]) cube([20,18,4]);
+            }    
+            difference (){
+                translate ([-1.5,20,0]) cylinder(r=3,h=9, $fn=90);
+                translate ([-1.5,20,-1]) cylinder (r=1.375, h=11, $fn=90);
+            }    
+            difference (){
+                translate ([19.5,20,0]) cylinder(r=3,h=9, $fn=90);
+                translate ([19.5,20,-1]) cylinder (r=1.375, h=11,$fn=90);
+            }  
+        }
+    }
+
+    
+/* odroid uart strap for holder */
+module uart_strap() { 
+    difference () {
+        translate ([-4.5,17,9]) cube([27,6,3]);
+        translate ([-1.5,20,8]) cylinder (r=1.6, h=5, $fn=90);
+        translate ([19.5,20,8]) cylinder (r=1.6, h=5, $fn=90);
+    }   
+    difference (){
+        translate ([-1.5,20,12]) cylinder(r=3,h=1, $fn=90);
+        translate ([-1.5,20,11]) cylinder (r=1.6, h=7, $fn=90);
+    }  
+    difference (){
+        translate ([19.5,20,12]) cylinder(r=3,h=1, $fn=90);
+        translate ([19.5,20,11]) cylinder (r=1.6, h=7, $fn=90);
+    }    
+}
+
+module hk_wb2() {
+    difference () {
+        union() {
+        color("tan") cube([16.5,16.5,1]);
+        translate([1.75,15.75,.75]) rotate([180,0,0]) header_f(6,9);
+        color("silver") translate([11.5,11.5,1]) cube([2,3,.5]);
+        color("silver") translate([11.5,3,1]) cube([2,3,.5]);
+        }
+    translate([9.6,8.33,-1])
+        color("tan") hull() {
+            cylinder(d=1, h=3);
+            translate([5,0,0]) cylinder(d=1, h=3);
+        }
+    translate([7.36,2,-1]) rotate([0,0,90])
+        color("tan") hull() {
+            cylinder(d=1, h=3);
+            translate([5,0,0]) cylinder(d=1, h=3);
+        }
+    }
+}
+
+
+/* odroid-hc4 oled holder */
+module hc4_oled_holder(side,wallthick) {
+    
+    adjust=.01;
+    $fn = 90;    
+    difference() {
+        union() {
+            if(side == "top") {
+                translate([-1.85,-1.75,-4]) cube([32,5,4]);
+                translate([30.15,-3.75,1]) 
+                    rotate([0,-90,0]) 
+                    linear_extrude(height = 32) 
+                        polygon(points = [ [-wallthick/2,-wallthick/2],
+                            [-4,wallthick], 
+                            [-4,2], 
+                            [-wallthick/2,2]]);
+                        translate([-1.85,4,1]) 
+                            rotate([0,-90,180]) 
+                            linear_extrude(height = 32) 
+                                polygon(points = [ [-wallthick/2,-wallthick/2],
+                                    [-4,wallthick], 
+                                    [-4,2], 
+                                    [-wallthick/2,2]]);
+            }
+            if(side == "bottom") {
+                translate([-1.85,-1.75,0]) cube([32,5,4]);
+                    translate([30.15,-3.75,1]) 
+                        rotate([0,-90,0]) 
+                        linear_extrude(height = 32) 
+                            polygon(points = [ [-wallthick/2,-wallthick/2],
+                                [2,wallthick], 
+                                [2,2], 
+                                [-wallthick/2,2]]);
+                    translate([-1.85,4,1]) 
+                        rotate([0,-90,180]) 
+                        linear_extrude(height = 32) 
+                            polygon(points = [ [-wallthick/2,-wallthick/2],
+                                [2,wallthick], 
+                                [2,2], 
+                                [-wallthick/2,2]]);
+            }
+        }
+        if(side == "top") {
+            translate([-.5,0,wallthick-8]) cube([29.5,1.9,5]);
+            translate([(32.75/2-(15/2))-1.85,-adjust-3-1.75,-wallthick-2.5]) cube([15,12,wallthick+3]);
+        }
+        if(side == "bottom") {
+            translate([-.5,0,-adjust]) cube([29.5,1.42,5]);
+            translate([(32.75/2-(15/2))-1.85,-adjust-3-1.75,-adjust]) cube([15,12,8]);
+            translate([2.5,-adjust-3-1.75,-adjust]) cube([6,3,8]);
+            translate([12.5,adjust,10]) rotate([90,0,0]) cylinder(d=21, h=2);
+        }
+    }   
+}
+
+/* odroid-hc4 oled */
+module hc4_oled() {
+    
+adjust = .01;
+$fn=90;
+
+oled_x = 28.5;
+oled_y = 1.25;
+oled_z = 48.6;
+
+oled_open_x = 29;
+oled_open_y = 1.5;
+    difference() {
+        union() {
+            // pcb board
+            color("Tan", 1) translate([0,0,0]) cube([oled_x,oled_y,oled_z]);
+            // oled
+            color("Black", 1) translate([.5,1.25,25.5]) cube([oled_x-1,.625,15]);
+            color("DarkGrey", 1) translate([.5,1.25,40.5]) cube([oled_x-1,.625,4]);
+        }
+        translate([2.8,0,46.7]) {
+            translate([-.6,1.26,0]) rotate([90,0,0])
+                hull() {
+                translate([1.2,0,0]) cylinder(d=1.8, h=1.25+(adjust*2));
+                cylinder(d=1.8, h=1.25+(adjust*2));
+                }
+        }
+        translate([25.7,0,46.7]) {
+            translate([-.6,1.26,0]) rotate([90,0,0])
+                hull() {
+                translate([1.2,0,0]) cylinder(d=1.8, h=1.25+(adjust*2));
+                cylinder(d=1.8, h=1.25+(adjust*2));
+                }
+        }
+        
+    }
+}
+
+
+/* h2 network card */
+module h2_netcard() {
+    
+    adjust = .01;
+    $fn = 90;
+    difference() {
+        union() {
+            color("tan") translate ([0,0,0]) linear_extrude(height = 1) import("./dxf/hk-network-card.dxf");
+            color("goldenrod") translate([3.75,17.85,1-adjust]) cylinder(d=6,h=3);
+            color("goldenrod") translate([106,24.85,1-adjust]) cylinder(d=6,h=3);
+        }
+        translate([20.85,3.85,-adjust]) cylinder(d=3,h=4);
+        translate([3.75,17.85,-adjust]) cylinder(d=3,h=6);
+        translate([3.75,51.1,-adjust]) cylinder(d=3,h=4);
+        translate([20.15,43.85,-adjust]) cylinder(d=3,h=4);
+        translate([106,24.85,-adjust]) cylinder(d=3,h=6);
+        translate([96.5,3.85,-adjust]) cylinder(d=3,h=4);
+    }
+    rj45(26,-1,0,"bottom",1);
+    rj45(43,-1,0,"bottom",1);
+    rj45(60,-1,0,"bottom",1);
+    rj45(77,-1,0,"bottom",1);
+    place(30,25,0,6,6,0,"bottom") color("dimgray") translate([0,0,0]) cube([6,6,.8]);
+    place(47,25,0,6,6,0,"bottom") color("dimgray") translate([0,0,0]) cube([6,6,.8]);
+    place(64,25,0,6,6,0,"bottom") color("dimgray") translate([0,0,0]) cube([6,6,.8]);
+    place(79,25,0,6,6,0,"bottom") color("dimgray") translate([0,0,0]) cube([6,6,.8]);
+    place(56.5,41,0,5,9.75,0,"bottom") color("dimgray") translate([0,0,0]) cube([5,9.75,.8]);
+    for (i=[34.65:.5:48.5]) {
+        color("gold") translate([98,i,1]) cube([2,.25,.25]);
+        color("gold") translate([98,i,-.24]) cube([2,.25,.25]);
+    }
+    for (i=[51:.5:53]) {
+        color("gold") translate([98,i,1]) cube([2,.25,.25]);
+        color("gold") translate([98,i,-.24]) cube([2,.25,.25]);
+    }
+
+}
+
+
+/* hk 3.5 lcd */
+module hk35_lcd() {
+    
+    adjust = .01;
+    $fn = 90;
+    difference() {
+        union() {
+            color("tan") translate ([0,0,0]) slab([95,56,1.7],3.5);
+            color("black",1) translate([10.5,0,1.7]) cube([74.75,54.5,4]);
+            color("white",1) translate([8.5,0,5.7-adjust]) cube([82.75,54.5,2]);
+            color("grey",1) translate([8.5,0,7.7-adjust]) cube([82.75,54.5,.8]);
+            color("dimgrey",1) translate([15,2,8.5-adjust]) cube([75.5,51,.25]);
+        }
+        translate([3.5,3.5,-adjust]) cylinder(d=3,h=6);
+        translate([3.5,52.5,-adjust]) cylinder(d=3,h=4);
+    }
+    translate([3,8.75,1.70-adjust]) momentary45x15();
+    translate([3,19.75,1.70-adjust]) momentary45x15();
+    translate([3,30.75,1.70-adjust]) momentary45x15();
+    translate([3,41.75,1.70-adjust]) momentary45x15();
+    color("black") translate([7.375,.8,-9+adjust]) cube([51.5,5,9]);
+    translate([92.5,4,adjust]) rotate([0,180,0]) header(5);
+    }
+
+
+// hk console uart model
+module hk_uart() {
+    
+    size = [22,13,1.25];
+    adjust = .01;
+    $fn = 90;
+    color("tan") cube([size[0],size[1],size[2]]);
+    translate([6.5,.25,6.25-adjust]) rotate([90,180,-90]) uart_micro();
+    translate([6.75,3,-2+adjust])cylinder(d=1, 2);
+    translate([6.75,5.25,-2+adjust])cylinder(d=1, 2);
+    translate([6.75,7.5,-2+adjust])cylinder(d=1, 2);
+    translate([6.75,9.75,-2+adjust])cylinder(d=1, 2);
+    translate([23,2.75,1.25]) rotate([0,0,90]) usb_micro();
+    translate([13,4.5,1.25]) rotate([0,0,90]) ic([4,4,1]);
+}
+
+
+// hk vu7c lcd display
+module hk_vu7c(gpio_ext, tabs) {
+    
+    lcd_size = [164.85,100,5.48];
+    pcb_size = [184.6,75,1.6];
+    view_size = [155,88.5,.125];        // 154.21 x 85.92
+    hole = 3.2;
+    length = 24-hole;
+    depth = 2;    
+    adjust = .1;
+    $fn = 90;    
+    difference() {
+        union() {
+            color("lightgray") translate([0,0,pcb_size[2]+3.12]) cube(lcd_size);
+            if(tabs == true) {
+                color("black") translate([-(pcb_size[0]-lcd_size[0])/2,lcd_size[1]-pcb_size[1]-1,0]) 
+                    cube(pcb_size);
+            }
+            else {
+                color("black") translate([0,lcd_size[1]-pcb_size[1]-1,0]) 
+                    cube([pcb_size[0]-20,pcb_size[1],pcb_size[2]]);
+            }
+            color("black") translate([3,7.5,pcb_size[2]+3.12+lcd_size[2]-adjust]) cube(view_size);
+            // tabs
+            color("black") translate([51.8,99,0]) slab_r([8,8,1.6],[.1,4,4,.1]);
+            color("black") translate([104.8,99,0]) slab_r([8,8,1.6],[.1,4,4,.1]);
+        }
+        // slots
+        color("dimgray") translate([-(pcb_size[0]-lcd_size[0])/4,lcd_size[1]-1-7,-adjust]) 
+            rotate([0,0,-90]) slot(hole,length,depth);
+        color("dimgray") translate([-(pcb_size[0]-lcd_size[0])/4,lcd_size[1]-1-46,-adjust]) 
+            rotate([0,0,-90]) slot(hole,length,depth);
+        color("dimgray") translate([(pcb_size[0]-(pcb_size[0]-lcd_size[0])/2)-(pcb_size[0]-lcd_size[0])/4,
+            lcd_size[1]-1-7,-adjust]) rotate([0,0,-90]) slot(hole,length,depth);
+        color("dimgray") translate([(pcb_size[0]-(pcb_size[0]-lcd_size[0])/2)-(pcb_size[0]-lcd_size[0])/4,
+            lcd_size[1]-1-46,-adjust]) rotate([0,0,-90]) slot(hole,length,depth);
+        // holes
+        color("dimgray") translate([55.8,103.5,-adjust]) cylinder(d=hole, h=3);
+        color("dimgray") translate([108.8,103.5,-adjust]) cylinder(d=hole, h=3);
+        // pcb cuts
+        color("dimgray") translate([66,97.5,-adjust]) slab_r([20.3,4,2],[1,1,1,1]);
+        color("dimgray") translate([17.8,lcd_size[1]-pcb_size[1]-2,-adjust]) slab_r([78.8,6,2],[1,1,1,1]);
+    }
+    // components
+    translate([70+14.5,28.58,0]) rotate([180,0,180]) hdmi_a();
+    translate([47.49-1,42.09-.75,0]) rotate([180,0,90]) header_f(7,15);
+    translate([39.5,80.19-1,0]) rotate([180,0,90]) header_f(20,15);
+    translate([39.5,82.73-1,0]) rotate([180,0,90]) header_f(20,15);
+    translate([13.15+2.75-.25,36.71-1.25,0]) rotate([180,0,180]) header(7);
+    translate([23.58+2.5,74.42-1.25,0]) rotate([180,0,180]) header(5);
+    translate([98+2,26.04-2,0]) rotate([180,0,180]) pcb_pad(7);
+    color("dimgray") translate([16.25,69.4,-1.99]) cube([4,4,2]);
+    translate([18.5,58,-1.99]) cube([25,5.5,2]);
+    translate([80.5,52.5,-1.99]) cube([4.5,3.5,2]);
+    // gpio extension
+    if(gpio_ext == true) {
+        translate([57.37-1.25,94.93-1.25,0]) rotate([180,0,90]) header(20);
+        translate([57.37-1.25,92.39-1.25,0]) rotate([180,0,90]) header(20);
+    }
+    else {
+        translate([57.37-2,94.93-2,0]) rotate([180,0,90]) pcb_pad(20);
+        translate([57.37-2,92.39-2,0]) rotate([180,0,90]) pcb_pad(20);        
+    }
+    translate([59,52.69,-1.59]) ic(9);
+}
+
+
+// hk vu8m lcd display
+module hk_vu8m(brackets) {
+    $fn = 90;    
+    
+    m1_screw_spacing = 72;
+
+    body_size  = [    198,     133,                1.93];
+    glass_size = [ 195.73,  131.14,                1.60];
+    lcd_size   = [ 184.63,  114.94, body_size[2] + 0.40];
+    view_size  = [ 173.23,  108.64,                  .1];
+
+    rb = 5.25;   // body edge radius
+
+    lcd_clearance = [0.15, 0.1, 0];
+    pcb_size = [14,24,1.6];
+    hole = 4.31;
+    spacer_size = [5.5, 6, 2.5, 5.5, 1, 0, 1, 1, 0, 0, 0];
+
+    // "body"
+    color([0.1,0.1,0.1])
+    difference(){
+        slab(body_size, rb); 
+        lcd_space = lcd_size + 2*lcd_clearance;
+        translate([3.76               , 9               ,    -1]) cube(lcd_space);
+        translate([3.76               , 9               ,    -1]) cylinder(r=1.3, h=5);
+        translate([3.76 + lcd_space[0], 9               ,    -1]) cylinder(r=1.3, h=5);
+        translate([3.76               , 9 + lcd_space[1],    -1]) cylinder(r=1.3, h=5);
+        translate([3.76 + lcd_space[0], 9 + lcd_space[1],    -1]) cylinder(r=1.3, h=5);
+    // 8x holes in body
+        translate([  44.5,              4.5, -1]) cylinder(d=hole, h=5);
+        translate([  51.5,              4.5, -1]) cylinder(d=hole, h=5);
+        translate([ 183.5,              4.5, -1]) cylinder(d=hole, h=5);
+        translate([ 190.5,              4.5, -1]) cylinder(d=hole, h=5);
+        translate([  44.5, body_size[1]-4.5, -1]) cylinder(d=hole, h=5);
+        translate([  51.5, body_size[1]-4.5, -1]) cylinder(d=hole, h=5);
+        translate([ 183.5, body_size[1]-4.5, -1]) cylinder(d=hole, h=5);
+        translate([ 190.5, body_size[1]-4.5, -1]) cylinder(d=hole, h=5);
+
+    }
+    // 4x standoffs
+        color([0.6,0.6,0.6]) {
+            translate([  44.5,              4.5, 0]) standoff(spacer_size);
+            translate([ 183.5,              4.5, 0]) standoff(spacer_size);
+            translate([  44.5, body_size[1]-4.5, 0]) standoff(spacer_size);
+            translate([ 183.5, body_size[1]-4.5, 0]) standoff(spacer_size);
+        }
+    // LCD panel
+    color([0.6, 0.6, 0.65])
+        translate([3.76, 9, body_size[2]-lcd_size[2]]+lcd_clearance)
+            cube(lcd_size); 
+
+    // Front glass
+    // It's actually thinner and glued, but for the sake of simplicity...
+    color([0.2, 0.2, 0.2], 0.9)
+        translate([0.86, 1.38, body_size[2] + 0.01])
+            slab(glass_size, rb);
+
+    // view area
+    color("dimgrey", 0.9)
+        translate([(glass_size[0]-view_size[0])/2, (glass_size[1]-view_size[1])/2, body_size[2] + glass_size[2]- 0.01])
+            slab(view_size, .1);
+
+    // PCB stub
+    color([0.1,0.1,0.1])
+        translate([20.5, 24.5, -3])
+            cube(pcb_size);
+    color("dimgrey")
+        translate([22.5, 26.5, -2])
+            cube([8,16,3]);
+    color([0.1,0.1,0.1])
+        translate([12, 21, -2])
+            cube([7,7,1.6]);
+    color([0.1,0.1,0.1])
+        translate([10, 34, -2])
+            cube([4,10,1.6]);
+
+    //Brackets
+    if(brackets) {
+        translate([44.5 - 7.5,   body_size[1]/2 + m1_screw_spacing/2 - 7.5, - spacer_size[1] - 2]) u_bracket();
+        translate([44.5 - 7.5,   body_size[1]/2 - m1_screw_spacing/2 + 7.5, - spacer_size[1] - 2 + 1.93]) rotate([180,0,0]) u_bracket();
+
+    //Screws
+        color([0.1,0.1,0.1]) {
+            translate([  44.5,              4.5, -8]) rotate([180,0,0]) screw([3,7,0]);
+            translate([ 183.5,              4.5, -8]) rotate([180,0,0]) screw([3,7,0]);
+            translate([  44.5, body_size[1]-4.5, -8]) rotate([180,0,0]) screw([3,7,0]);
+            translate([ 183.5, body_size[1]-4.5, -8]) rotate([180,0,0]) screw([3,7,0]);
+        }
+    }
+}
+
+// Vu8M LCD U-BRACKET
+module u_bracket() {
+    $fn= 30;
+    xi = 124;
+    xo = 154;
+    yi = 42;
+    yo = 42 + 12;   // Outer vertical dimension 
+    z  = 1.93;
+    rlo = 21.3;     // Lower outer corner radii
+    rli = 1;        // Lower inner corner radii
+    ruo = 5.7;      // Upper outer corner radii
+    rui = 5.7;      // Upper inner corner radii
+
+    color([0.2,0.2,0.2])
+    difference() {
+        union() {
+            hull() {
+                translate([          rlo,      rlo,0]) cylinder(r=rlo, h=z, $fn=100);     
+                translate([xo -      rlo,      rlo,0]) cylinder(r=rlo, h=z, $fn=100);     
+            }
+            hull() {
+                translate([          ruo, yo - ruo,0]) cylinder(r=ruo, h=z);     
+                translate([     15 - rui, yo - rui,0]) cylinder(r=rui, h=z);     
+                translate([            0,      rlo,0]) cube([15,$fs,z]);
+            }
+            hull() {
+                translate([xo -      ruo, yo - ruo,0]) cylinder(r=ruo, h=z);     
+                translate([xo - 15 + rui, yo - rui,0]) cylinder(r=rui, h=z);     
+                translate([xo - 15      ,      rlo,0]) cube([15,$fs,z]);
+            }
+        }
+        hull() {
+            translate([     15 + rli, yo - yi + rli,-1]) cylinder(r=rli, h=z+2);     
+            translate([xo - 15 - rli, yo - yi + rli,-1]) cylinder(r=rli, h=z+2);     
+            translate([           15,            yo,-1]) cube([xi,$fs,z+2]);
+        }    
+        translate([     7.5, yo - 4, -1]) cylinder(d=3.21, h=z+2);
+        translate([xo - 7.5, yo - 4, -1]) cylinder(d=3.21, h=z+2);
+        hull() {
+            translate([     7.5, yo -  9.6, -1]) cylinder(d=3.21, h=z+2);
+            translate([     7.5, yo - 29.4, -1]) cylinder(d=3.21, h=z+2);
+        }
+        hull() {
+            translate([xo - 7.5, yo -  9.6, -1]) cylinder(d=3.21, h=z+2);
+            translate([xo - 7.5, yo - 29.4, -1]) cylinder(d=3.21, h=z+2);
+        }
+        translate([     15 +   5.00, 8.25, -1]) cylinder(d=4.11, h=z+2);
+        translate([xo - 15 -  30.00, 8.25, -1]) cylinder(d=4.11, h=z+2);
+        translate([     15 +  10.75, 2.50, -1]) cylinder(d=4.11, h=z+2);
+        translate([     15 +  41.75, 2.50, -1]) cylinder(d=4.11, h=z+2);
+        translate([     15 +  82.25, 2.50, -1]) cylinder(d=4.11, h=z+2);
+        translate([     15 + 113.25, 2.50, -1]) cylinder(d=4.11, h=z+2);
+    }
+}
+
+// hk vu8s lcd display
+module hk_vu8s() {
+    
+    body_size  = [202, 133, 1.70];
+    glass_size = [195.5, 131, 1.75];
+    lcd_size   = [183.5,114, body_size[2] + 1];
+    view_size  = [172.5, 107.5, .1];
+
+    rb = 5.25;   // body edge radius
+
+    lcd_clearance = [0.15, 0.1, 0];
+    pcb_size = [14,24,1.6];
+    hole = 4.31;
+    spacer_size = [5.5, 1.75+body_size[2], 2.5, 5.5, 1, 0, 1, 1, 0, 0, 0];
+    
+    $fn = 90;    
+    adj = .01;
+
+    // "body"
+    color([0.1,0.1,0.1])
+    difference(){
+        union() {
+            slab(body_size, rb);
+            translate([(8.25/2),-1.74-(8.25/2),0]) rotate([0,0,90]) slot(8.25,10+(8.25/2),body_size[2]);
+            translate([body_size[0]-(8.25/2),-1.74-(8.25/2),0]) rotate([0,0,90]) slot(8.25,10+(8.25/2),body_size[2]);
+            translate([(8.25/2),body_size[1]-10,0]) rotate([0,0,90]) slot(8.25,10.75+(8.25/2),body_size[2]);
+            translate([body_size[0]-(8.25/2),body_size[1]-10,0]) rotate([0,0,90]) slot(8.25,10.75+(8.25/2),body_size[2]);
+        }
+        lcd_space = lcd_size + 2*lcd_clearance;
+        
+        // corner holes
+        translate([4, -5, -1]) cylinder(d=hole, h=5);
+        translate([4, 143-5, -1]) cylinder(d=hole, h=5);
+        translate([202-4, -5, -1]) cylinder(d=hole, h=5);
+        translate([202-4, 143-5, -1]) cylinder(d=hole, h=5);
+
+        translate([3.5, 3.5, -1]) cylinder(d=hole, h=5);
+        translate([3.5, body_size[1]-3.5, -1]) cylinder(d=hole, h=5);
+        translate([111, 3.5, -1]) cylinder(d=hole, h=5);
+        translate([111.5, body_size[1]-3.5, -1]) cylinder(d=hole, h=5);
+
+    }
+        // standoffs
+        color([0.6,0.6,0.6]) {
+            translate([4, 3.75, body_size[2]+adj]) standoff(spacer_size);
+            translate([3.75, 128.25, body_size[2]+adj]) standoff(spacer_size);
+            translate([111.5, 4, body_size[2]+adj]) standoff(spacer_size);
+            translate([111.25, 128.75, body_size[2]+adj]) standoff(spacer_size);
+        }
+    // LCD panel
+    color([0.6, 0.6, 0.65])
+        translate([10, 9, body_size[2]-lcd_size[2]]+lcd_clearance)
+            cube(lcd_size); 
+
+    // Front glass
+    // It's actually thinner and glued, but for the sake of simplicity...
+    color([0.2, 0.2, 0.2], 0.9)
+        translate([3, 1.25, body_size[2] + 0.01])
+            slab(glass_size, rb);
+
+    // view area
+    color("dimgrey", 0.9)
+        translate([14, 12.5, body_size[2] + glass_size[2]- 0.01])
+            slab(view_size, .1);
+
+    // PCB stub
+    color([0.1,0.1,0.1])
+        translate([body_size[0]-25, body_size[1]-30, -2])
+            cube([7,7,.1]);
+    color([0.1,0.1,0.1])
+        translate([body_size[0]-50, body_size[1]-35, -2])
+            cube([4,5,.1]);
+}
+
+// ODROID M1 2.5" SATA HDD mounting kit
+module m1_hdmount() {
+    $fn   = 30;
+    dims  = [89.6,   38.5,  2.0];
+    holes = 4;
+    slots = [4.15,    3.3];
+    standoff_style = [5, 16, 0, 3, 25, 0, 0, 1, 0, 0, 0];
+
+    color([0.2,0.2,0.2])
+    difference() {
+        slab(dims, 4.0);
+        translate([     3.1,   28.3, -1]) cylinder(d = holes, h = 4);
+        translate([    86.5,   28.3, -1]) cylinder(d = holes, h = 4);
+        hull() {
+            translate([   14.75,     10.15, -1]) cylinder(d=3.30, h=4);
+            translate([   15.60,     10.15, -1]) cylinder(d=3.30, h=4);
+        }
+        hull() {
+            translate([   75.60,     10.15, -1]) cylinder(d=3.30, h=4);
+            translate([   76.45,     10.15, -1]) cylinder(d=3.30, h=4);
+        }
+    }
+
+    color([0.6,0.6,0.6]) {
+        translate ([   3.1,  28.3 ,  0]) rotate([  0,0,0]) standoff(standoff_style);
+        translate ([  86.5,  28.3 ,  0]) rotate([  0,0,0]) standoff(standoff_style);
+    }
+    color([0.1,0.1,0.1]) {
+        translate ([   3.1,  28.3 ,  2]) rotate([  0,0,0]) screw([3, 7, 0]);
+        translate ([  86.5,  28.3 ,  2]) rotate([  0,0,0]) screw([3, 7, 0]);
+
+        translate ([  15.1,  10.15,  0]) rotate([180,0,0]) screw([3, 7, 0]);
+        translate ([    76,  10.15,  0]) rotate([180,0,0]) screw([3, 7, 0]);
+    }
+
+    // "HDD HOLDER"
+    color([0.9, 0.9, 0.9])
+    translate([67,8,0]) rotate([180,0,180])
+    linear_extrude(height=0.01) text("HDD HOLDER",5);
+}
+
+/* hk speakers */
+module hk_speaker() {
+    
+    spk_x = 44;
+    spk_y = 20;
+    spk_z = 98;
+    c_hole = 6;
+    i_dia = c_hole+3;
+    adjust = .1;
+    
+    difference() {
+        translate([spk_x/2,spk_y/2,spk_z/2]) cube_fillet_inside([spk_x,spk_y,spk_z], 
+            vertical=[0,0,0,0,0], top=[0,c_hole,0,c_hole], bottom=[0,c_hole,0,c_hole], $fn=90);
+        // speaker cone
+        translate([spk_x/2,-adjust,spk_z-72]) rotate([-90,0,0]) cylinder(d=36, h=.5);
+        
+        // corner holes
+        translate([(c_hole/2)+2,-adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
+            cylinder(d=c_hole, h=spk_y+(2*adjust));
+        translate([(c_hole/2)+2,-adjust,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
+            cylinder(d=c_hole, h=spk_y+(2*adjust));
+        translate([spk_x-(c_hole/2)-2,-adjust,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
+            cylinder(d=c_hole, h=spk_y+(2*adjust));
+        translate([spk_x-(c_hole/2)-2,-adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
+            cylinder(d=c_hole, h=spk_y+(2*adjust));
+        
+        // lower left corner indent
+        translate([(c_hole/2)+2,-adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
+            cylinder(d=i_dia, h=10+adjust);
+        translate([-adjust-1,-adjust,-adjust]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
+        translate([adjust+.5,-adjust,-(i_dia/2)+adjust]) cube([i_dia+adjust,10+adjust,i_dia+adjust+.5]);        
+        translate([(c_hole/2)+2,-adjust+12+adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
+            cylinder(d=i_dia, h=10+adjust);
+        translate([-adjust-1,-adjust+12+adjust,-adjust]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
+        translate([adjust+.5,-adjust+12+adjust,-(i_dia/2)+adjust]) cube([i_dia+adjust,10+adjust,i_dia+adjust+.5]);
+ 
+        // upper left corner corner indent
+        translate([(c_hole/2)+2,-adjust,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
+            cylinder(d=i_dia, h=10+adjust);
+        translate([-adjust-1,-adjust,spk_z-i_dia-.5]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
+        translate([-adjust+.5,-adjust,spk_z-(i_dia/2)+adjust-.5]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
+        translate([(c_hole/2)+2,-adjust+12,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
+            cylinder(d=i_dia, h=10+adjust);
+        translate([-adjust-1,-adjust+12,spk_z-i_dia-.5]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
+        translate([-adjust+.5,-adjust+12,spk_z-(i_dia/2)+adjust-.5]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
+        
+        // upper right corner corner indent
+        translate([spk_x-(c_hole/2)-2,-adjust,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
+            cylinder(d=i_dia, h=10+adjust);
+        translate([spk_x-1-(i_dia/2),-adjust,spk_z-i_dia+adjust-.5]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
+        translate([spk_x-.5-i_dia,-adjust,spk_z-(i_dia/2)+adjust-.5]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
+        translate([spk_x-(c_hole/2)-2,-adjust+12,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
+            cylinder(d=i_dia, h=10+adjust);
+        translate([spk_x-1-(i_dia/2),-adjust+12,spk_z-i_dia+adjust-.5]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
+        translate([spk_x-.5-i_dia,-adjust+12,spk_z-(i_dia/2)+adjust-.5]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
+      
+        // lower right corner corner indent
+        translate([spk_x-(c_hole/2)-2,-adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
+            cylinder(d=i_dia, h=10+adjust);
+        translate([spk_x-1-(i_dia/2),-adjust,-adjust]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
+        translate([spk_x-.5-i_dia,-adjust,-(i_dia/2)+adjust]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
+        translate([spk_x-(c_hole/2)-2,-adjust+12,(c_hole/2)+2]) rotate([-90,0,0]) 
+            cylinder(d=i_dia, h=10+adjust);
+        translate([spk_x-1-(i_dia/2),-adjust+12,-adjust]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
+        translate([spk_x-.5-i_dia,-adjust+12,-(i_dia/2)+adjust]) cube([i_dia,10+adjust,i_dia+adjust+.5]);            
+        }
+        // speaker cone
+        translate([spk_x/2,-adjust+46,spk_z-72]) {
+            difference() {
+                translate([0,0,0]) sphere(d=96, $fn=180);
+                translate([-50,-46,-50]) cube([100,100,100]);
+            }
+        }
+
+    }
+
+    
+/* hk boom bonnet */
+module hk_boom(speakers,orientation) {
+    
+    adjust = .01;
+    $fn = 90;
+    difference() {
+        union() {
+            color("tan") translate ([0,0,0]) slab([60,35,1.6],.5);
+            if(speakers == true) {
+                color("tan") translate ([-31.5,0,0]) slab([31.5,35,1.6],.5);
+                color("white") translate ([-0.25,0,0]) cube([.5,35,1.6]);
+                color("tan") translate ([60,0,0]) slab([31.5,35,1.6],.5);                
+                color("white") translate ([60,0,0]) cube([.5,35,1.6]);
+            }
+        }
+        // pcb holes
+        color("tan") translate([3.5,3.5,-adjust]) cylinder(d=3,h=6);
+        color("tan") translate([3.5,31.5,-adjust]) cylinder(d=3,h=6);
+        color("tan") translate([56.5,3.5,-adjust]) cylinder(d=3,h=4);
+        color("tan") translate([56.5,31.5,-adjust]) cylinder(d=3,h=4);
+        if(speakers == true) {
+            // left
+            color("tan") translate([-28,3.5,-adjust]) cylinder(d=3,h=6);
+            color("tan") translate([-28,31.5,-adjust]) cylinder(d=3,h=6);
+            color("tan") translate([-3.5,3.5,-adjust]) cylinder(d=3,h=6);
+            color("tan") translate([-3.5,31.5,-adjust]) cylinder(d=3,h=6);
+            // right
+            color("tan") translate([64.5,3.5,-adjust]) cylinder(d=3,h=4);
+            color("tan") translate([64.5,31.5,-adjust]) cylinder(d=3,h=4);
+            color("tan") translate([88,3.5,-adjust]) cylinder(d=3,h=4);
+            color("tan") translate([88,31.5,-adjust]) cylinder(d=3,h=4);
+            // left speaker openings
+            color("tan") translate([-31.5/2,35/2,-adjust]) cylinder(d=23.5, h=3);
+            color("tan") translate([-4-31.5/2,35/2+(23.5/2)-.5,-adjust]) cube([6,3,3]);
+            color("tan") translate([-4-31.5/2,35/2-(23.5/2)-2.5,-adjust]) cube([6,3,3]);
+            color("tan") translate([-4-31.5/2+(23.5/2)+1,-2+35/2,-adjust]) cube([6,3,3]);
+            // right speaker openings
+            color("tan") translate([60+(31.5/2),35/2,-adjust]) cylinder(d=23.5, h=3);
+            color("tan") translate([60-3+31.5/2,35/2+(23.5/2)-.5,-adjust]) cube([6,3,3]);
+            color("tan") translate([60-3+31.5/2,35/2-(23.5/2)-2.5,-adjust]) cube([6,3,3]);
+            color("tan") translate([60+1.25,-2+35/2,-adjust]) cube([6,3,3]);
+        }
+    }
+    // headers
+    translate([7.5,3.5,1.6-adjust]) rotate([0,0,-90]) header(3);
+    translate([16,3.5,1.6-adjust]) rotate([0,0,-90]) header(7);
+    translate([34,2,1.6-adjust]) rotate([0,0,0]) encl_header_12();
+    translate([40,13.5,1.6-adjust]) rotate([0,0,-90]) header(2);
+    translate([45.5,13.5,1.6-adjust]) rotate([0,0,-90]) header(2);
+    difference() {
+        union() {
+            color("dimgray", 1) translate([44.5,27,1.6+2]) rotate([0,0,0]) cylinder(d=16, h=3);
+            color("dimgray", 1) translate([44.5,27,1.6]) rotate([0,0,0]) cylinder(d=8, h=2);
+        }
+        color("dimgray", 1) translate([44.5,27,1.6+4]) rotate([0,0,0]) cylinder(d=12, h=3);     
+        for(d=[5:10:360]) {
+            color("dimgray") translate([44.5+(16/2)*cos(d),27+(16/2)*sin(d),1.6+2-adjust]) cylinder(d=.75, h=3+2*adjust);
+        }  
+    }
+    color("gray", 1) translate([45,27,1.6+4-adjust]) rotate([0,0,0]) cylinder(d=1.5, h=.25);
+    translate([3.75,13,1.6-adjust]) rotate([0,0,90]) micro2pin();
+    translate([56.5,20.5,1.6-adjust]) rotate([0,0,-90]) micro2pin();
+    translate([7.75,21.75,1.6-adjust]) audio_jack35();
+    translate([20,30,1.6-adjust]) capacitor(6.25,6.5);
+    translate([30,30,1.6-adjust]) capacitor(6.25,6.5);
+    translate([22,16,1.6-adjust]) ic([6.5,4.5,1]);
+    translate([10,12,1.6-adjust]) ic([4,4,1]);
+    translate([32.5,9,1.6-adjust]) ic([3.5,3,1]);
+    if(speakers == true && orientation == "rear") {
+        translate([-31.5/2,35/2,1.6]) boom_speaker();
+        translate([60+(31.5/2),35/2,1.6]) boom_speaker();
+    }
+    if(speakers == true && orientation == "front") {
+        translate([-31.5/2,35/2,0]) rotate([0,180,0]) boom_speaker();
+        translate([60+(31.5/2),35/2,0]) rotate([0,180,0]) boom_speaker();
+    }
+}
+
+
+// hk stero boom bonnet speaker with board
+module hk_boom_speaker(side,speaker,pcb) {
+
+    adjust = .01;
+    $fn = 90;
+
+    if(pcb == true) {
+        difference() {
+            color("tan") slab([31.5,35,1.6],.5);
+            color("tan") translate([27.5,4,-adjust]) cylinder(d=3,h=6);
+            color("tan") translate([27.5,31,-adjust]) cylinder(d=3,h=6);
+            color("tan") translate([4,4,-adjust]) cylinder(d=3,h=6);
+            color("tan") translate([4,31,-adjust]) cylinder(d=3,h=6);
+            
+            // speaker openings
+            color("tan") translate([(31.5/2),35/2,-adjust]) cylinder(d=23.5, h=3);
+            color("tan") translate([-3+31.5/2,35/2+(23.5/2)-.5,-adjust]) cube([6,3,3]);
+            color("tan") translate([-3+31.5/2,35/2-(23.5/2)-2.5,-adjust]) cube([6,3,3]);
+            if(side == "right") {
+                color("tan") translate([.5,-2+35/2,-adjust]) cube([6,3,3]);
+            }
+            if(side == "left") {
+                color("tan") translate([31.5/2+(23.5/2)-2.5,-2+35/2,-adjust]) cube([6,3,3]);
+            }
+        }
+    }
+    if(speaker == true && pcb == true) {
+        translate([(31.5/2),35/2,1.6]) boom_speaker();        
+    }
+    if(speaker == true && pcb == false) {
+        boom_speaker();        
+    }
+}
+
+
+// hk stero boom bonnet speakers
+module boom_speaker() {
+
+    adjust = .01;
+    $fn = 90;
+    difference() {
+        union() {
+            color("silver") translate([0,0,-8.5]) cylinder_fillet_inside(h=6.5, r=21.4/2, 
+                top=0, bottom=2, $fn=90, fillet_fn=30, center=false);
+            color("dimgray") translate([0,0,2.5-adjust]) cylinder_fillet_inside(h=1, r=21.75/2, 
+                top=1, bottom=0, $fn=90, fillet_fn=30, center=true);
+  
+            difference() {                
+                color("black") translate([0,0,-5-adjust]) cylinder(d=23.7, h=5);
+                for(d=[30:60:360]) {
+                    color("dimgray") translate([(23.7/2)*cos(d),(23.7/2)*sin(d),-6-adjust]) cylinder(d=6, h=5+2*adjust);
+                }
+            }                
+            color("black") translate([0,0,-adjust]) cylinder(d=27.8, h=2);
+            color("dimgray") translate([0,0,1]) cylinder(d=22.8, h=1);
+            color("dimgray") translate([0,0,1]) cylinder(d=17.5, h=1.25);
+        }
+        color("darkgray") translate([0,0,10.5]) sphere(d=23);
+    }  
+}
+
+
+// hk boom bonnet speaker grill
+module hk_boom_grill(style,thick) {
+
+    adjust = .01;
+    $fn = 90;
+    if(style == "dome" || style == "frame") {
+        difference() {
+            union() {
+                difference() {
+                    translate([0,0,-23]) sphere(d=52.5);
+                    translate([0,0,-25]) sphere(d=52.5);
+                    translate([-30,-30,-60.5]) cube([60,60,60]);
+                    for(c=[-14.5:3:24]) {
+                        for(r=[-14.5:3:24]) {
+                            translate([r,c,-1]) cube([2,2,40]);
+                        }
+                    }
+                }
+                if(style == "frame") {
+                    difference() {
+                        translate([0,0,-1.25]) cylinder(d=30.5, h=thick);
+                        translate([0,0,-1.25-adjust]) cylinder(d=24, h=thick+2*adjust);      
+                    }
+                }
+            }
+        }
+    }
+    if(style == "flat") {
+        difference() {
+            translate([0,0,0]) cylinder(d=24.5, h=thick);
+            for(c=[-14.5:3:24]) {
+                for(r=[-14.5:3:24]) {
+                    translate([r,c,-1]) cube([2,2,thick+2]);
+                }
+            }
+        }
+    }
+}
+
+
+// hk stero boom bonnet speaker holder
+module boom_speaker_holder(style, tolerance) {
+
+    adjust = .01;
+    $fn = 90;
+
+    if(style == "friction") {
+        difference() {
+            translate([0,0,0]) cylinder(d=31, h=4);
+            translate([0,0,-adjust]) cylinder(d=28+tolerance, h=4+2*adjust);
+            translate([0,-1,-adjust]) cube([15,40,10], center=true);
+        }  
+        difference() {
+            translate([0,0,0]) cylinder(d=28+tolerance, h=2);
+            translate([0,0,-adjust]) cylinder(d=28+tolerance-2, h=4+2*adjust);                
+            translate([0,-1,-adjust]) cube([15,40,10], center=true);
+        }
+    }
+
+    if(style == "clamp") {
+        // bottom clamp
+        topthick = 2;
+        top_height = 14;
+        difference() {
+            cube([10.5,29,top_height-topthick]);
+            // speaker holders
+                translate([-1,14.5,14]) rotate([0,90,0]) cylinder(d=28, h=4.5);
+                translate([2,14.5,14]) rotate([0,90,0]) cylinder(d=24, h=6);
+                translate([4,14.5,14]) rotate([0,90,0]) cylinder(d=21.9, h=7.8);
+        }        
+    }
+}
+
+
+// hk stero boom bonnet speaker clamp holder top
+module boom_speaker_strap(side) {
+
+    topthick = 2;
+    top_height = 14;
+    adjust = .01;
+    $fn = 90;
+    // top clamp
+    difference() {
+        difference() {
+            union() {
+                translate([-3,14.5,top_height]) rotate([0,90,0]) cylinder(d=35,h=13.75);
+                if(side == "left") {
+                    translate([5.4,16.5,top_height+(topthick/2)-1]) cube_fillet_inside([16.75,55,topthick], 
+                    vertical=[6,1,6,1], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                }        
+                if(side == "right") {
+                    translate([5.4,13,top_height+(topthick/2)-1]) cube_fillet_inside([16.75,55,topthick], 
+                        vertical=[1,6,1,1], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                }        
+            translate([10.75-adjust,14.5,top_height]) rotate([0,90,0]) cylinder(d=35,h=3);
+            }
+            translate([-9.25,0,top_height-topthick-adjust]) cube([20,29,topthick]);
+            difference() {
+                translate([-4.25,14.5,14]) rotate([0,90,0]) cylinder(d=28, h=15);
+                translate([-5.25,0,19]) cube([20,30,19.5]);
+            }
+        }
+        // speaker holders
+        translate([-3-adjust,14.5,14]) rotate([0,90,0]) cylinder(d=30.8, h=4.5);
+        translate([-3-adjust,14.5,14]) rotate([0,90,0]) cylinder(d=32.8, h=2);
+        translate([-2.75,14.5,14]) rotate([0,90,0]) cylinder(d=28, h=14.5);
+        translate([-4.55,-4,-4]) cube([20,37,topthick+15]);
+
+        if(side == "left") {
+            translate([4.15,-3.4,-adjust]) cylinder(d=3.2, h=50);
+            translate([4.15,-3.4,15]) cylinder(d=6, h=10);
+            translate([5.75,40,-adjust]) cylinder(d=3.2, h=50);
+        }
+        if(side == "right") {
+            translate([4.5,32.5,-adjust]) cylinder(d=3.2, h=50);
+            translate([4.5,32.5,15]) cylinder(d=6, h=10);
+            translate([10.5,-11,-adjust]) cylinder(d=3.2, h=50);
+        }
+    }
+}
+
+
+// hk stero boom bonnet volume ring 
+module boom_vring(tolerance) {
+
+    out_dia = 22;
+    in_dia = 16.15 + tolerance;
+    thick = 3;
+    nub = 1.25;
+    adjust = .01;
+    $fn = 90;
+    difference() {
+        color("black") translate([0,0,0])cylinder(d=out_dia, h=thick);
+        color("dimgray") translate([0,0,-adjust]) cylinder(d=in_dia, h=thick+2*adjust);
+        for(d=[5:10:360]) {
+            color("dimgray") translate([(out_dia/2)*cos(d),(out_dia/2)*sin(d),-adjust]) cylinder(d=nub, h=thick+2*adjust);
+        }
+    }  
+}
+// hk power button
+module hk_pwr_button(mask = false) {
+    
+    adjust=.01;
+    $fn = 90;
+
+    if(mask == true) {
+        color("silver") translate([0, 0, -19]) cylinder(h=20, d=16);
+    }
+    else {
+        difference() {
+            union() {
+                // light ring
+                difference() {
+                    color("blue", .6) translate([0, 0, 1.67]) cylinder(h=.1, d=14.75);
+                    color("blue", .6) translate([0, 0, 1.66]) cylinder(h=.2, d=13.75);
+                }
+                // power symbol
+                color("blue", .6) translate([-.5, 0, 1.65]) color("blue", .6) cube([1,3.5,.1]);
+                difference() {
+                    color("blue", .6) translate([0, 0, 1.66]) cylinder(h=.1, d=5.75);
+                    color("blue", .6) translate([0, 0, 1.65]) cylinder(h=.2, d=4.5);
+                    color("blue", .6) translate([-1.75, 0, 1.65]) cube([3.5,4,2]);
+                }
+                // body
+                color("Gainsboro") cylinder(h=1.66, d1=17.75, d2=14.75);
+                color("silver") translate([0, 0, -19]) cylinder(h=19, d=15.8);
+                difference() {
+                    color("steelblue") translate([0, 0, -27.9]) cylinder(h=9, d=15.8);
+                    color("steelblue") translate([-1+15.8/2, -4, -19-9.1]) cube([2,8,6.1]);
+                    color("steelblue") translate([-1-15.8/2, -4, -19-9.1]) cube([2,8,6.1]);
+                }
+                color("white") translate([-3.5, -6, -28]) cube([7,12,2]);
+                
+                // nut
+                difference() {
+                    translate([0, 0, -4.75]) color("Gainsboro", .6) cylinder(h=2.75, d=21.5, $fn=6);
+                    translate([0, 0, -4.75]) color("Gainsboro", .6) cylinder(h=2.75, d=15.8);
+                }
+                // connector pins
+                color("silver") translate([-1.4, -.5, -34.99]) cube([2.8, 1, 7]);
+                color("silver") translate([-1.4, -.5+5, -34.99]) cube([2.8, 1, 7]);
+                color("silver") translate([-1.4, -.5-5, -34.99]) cube([2.8, 1, 7]);
+                color("silver") translate([-1.4-1.75, -.5+1.75, -34.99]) cube([1, 2.8, 7]);
+                color("silver") translate([-1.4+3.5, -.5+1.75, -34.99]) cube([1, 2.8, 7]);
+            }
+         }
+    }
+}
+
+// hk m1s ups
+module hk_m1s_ups() {
+    
+    pcb_size = [115,32,1.62];
+
+    adj = .01;
+    $fn = 90;
+    
+    difference() {
+        union() {
+            color("#008066") slab(pcb_size,4);
+            color("#fee5a6") translate([3.5,3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
+            color("#fee5a6") translate([3.5,pcb_size[1]-3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
+            color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
+            color("#fee5a6") translate([pcb_size[0]-3.5,pcb_size[1]-3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
+        }
+        color("#fee5a6") translate([3.5,3.5,-1]) cylinder(d=4, h=4);
+        color("#fee5a6") translate([3.5,pcb_size[1]-3.5,-1]) cylinder(d=4, h=4);
+        color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-1]) cylinder(d=4, h=4);
+        color("#fee5a6") translate([pcb_size[0]-3.5,pcb_size[1]-3.5,-1]) cylinder(d=4, h=4);
+   }
+   // battery and clips
+   color("silver") translate([15,5,pcb_size[2]]) rotate([0,0,270]) battery_clip();
+   color("silver") translate([80,16,pcb_size[2]]) rotate([0,0,90]) battery_clip();
+   translate([13.25,10.5,pcb_size[2]+10.4]) rotate([0,90,0]) battery("18650_convex");
+   
+   translate([86.75,.5,pcb_size[2]]) momentary45x15();
+   translate([97.5,-1,pcb_size[2]]) usbc();
+   
+   translate([35,28,pcb_size[2]]) led("DodgerBlue");
+   translate([40,28,pcb_size[2]]) led("DodgerBlue");
+   translate([45,28,pcb_size[2]]) led("DodgerBlue");
+   translate([50,28,pcb_size[2]]) led("DodgerBlue");
+ 
+   translate([113,8,pcb_size[2]]) rotate([0,0,90]) led("green");
+   translate([113,16,pcb_size[2]])  rotate([0,0,90]) led();
+   translate([113,21,pcb_size[2]])  rotate([0,0,90]) led();
+   
+   translate([78,29,pcb_size[2]]) rotate([0,0,270])header(7);
+   translate([78,31.5,pcb_size[2]]) rotate([0,0,270])header(7);
+}
+
+
+// prototype board, ups footprint
+module proto_ups() {
+    
+    pcb_size = [115,32,1.62];
+
+    adj = .01;
+    $fn = 90;
+    
+    union() {
+        difference() {
+            union() {
+                color("#008066") slab(pcb_size,4);
+                color("#fee5a6") translate([3.5,3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
+                color("#fee5a6") translate([3.5,pcb_size[1]-3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
+                color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
+                color("#fee5a6") translate([pcb_size[0]-3.5,pcb_size[1]-3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
+            }
+            color("#fee5a6") translate([3.5,3.5,-1]) cylinder(d=4, h=4);
+            color("#fee5a6") translate([3.5,pcb_size[1]-3.5,-1]) cylinder(d=4, h=4);
+            color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-1]) cylinder(d=4, h=4);
+            color("#fee5a6") translate([pcb_size[0]-3.5,pcb_size[1]-3.5,-1]) cylinder(d=4, h=4);
+       }
+       // pads
+       for(r=[5:2.54:30]) {
+        translate([10,r,pcb_size[2]+adj]) pcb_pad(38);
+       }
+   }
+}
+
+
+// prototype board, m1s footprint
+module proto_m1s() {
+    
+    pcb_size = [90,65,1.62];
+
+    adj = .01;
+    $fn = 90;
+    
+    union() {
+        difference() {
+            union() {
+                color("#008066") slab(pcb_size,2);
+                color("#fee5a6") translate([3.5,3.5,-.1]) cylinder(d=4.5, h=pcb_size[2]+.2);
+                color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-.1]) cylinder(d=4.5, h=pcb_size[2]+.2);
+                color("#fee5a6") translate([17.5,52.5,-.1]) cylinder(d=4.5, h=pcb_size[2]+.2);
+                color("#fee5a6") translate([67.5,55.1,-.1]) cylinder(d=4.5, h=pcb_size[2]+.2);
+            }
+            color("#fee5a6") translate([3.5,3.5,-1]) cylinder(d=3, h=4);
+            color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-1]) cylinder(d=3, h=4);
+            color("#fee5a6") translate([17.5,52.5,-1]) cylinder(d=3, h=4);
+            color("#fee5a6") translate([67.5,55.1,-1]) cylinder(d=3, h=4);
+       }
+       // pads
+       for(r=[7:2.54:32]) {
+        translate([10,r,pcb_size[2]+adj]) pcb_pad(28);
+       }
+   }
+}
+
+module hk_m1s_case_holes(type="landscape") {
+    
+    if(type == "portrait") {
+        cylinder(d=3, h=6);
+        translate([0,107,0]) cylinder(d=3, h=6);
+        translate([58,0,0]) cylinder(d=3, h=6);
+        translate([58,107,0]) cylinder(d=3, h=6);
+    }
+    else {
+        cylinder(d=3, h=6);
+        translate([0,58,0]) cylinder(d=3, h=6);
+        translate([107,0,0]) cylinder(d=3, h=6);
+        translate([107,58,0]) cylinder(d=3, h=6);
+    }
+}
+
diff --git a/lib/pcb_pad.scad b/lib/pcb_pad.scad
new file mode 100644
index 0000000..5710fdb
--- /dev/null
+++ b/lib/pcb_pad.scad
@@ -0,0 +1,30 @@
+/*
+    pcb_pad(pads = 1, style = "round")
+
+*/
+
+// single row pcb pad
+module pcb_pad(pads = 1, style = "round") {
+
+    adjust = .01;
+    $fn = 90;
+    pad_size = 1.25;
+    size_y = 2.54;
+    size_x = 2.54 * (pads-1);                
+    union() {
+        for (i=[0:2.54:size_x]) {
+            if(style == "round") {
+                difference() {
+                    color("#fee5a6") translate ([i,0,0]) cylinder(d=pad_size, h=.125);
+                    color("dimgray") translate([i,0,-adjust]) cylinder(d=.625, h=.125+2*adjust);
+                }
+            }
+            if(style == "square") {
+                difference() {
+                    color("#fee5a6") translate ([i-pad_size/2,-pad_size/2,0]) cube([pad_size, pad_size, .125]);
+                    color("dimgray") translate([i,0,-adjust]) cylinder(d=.625, h=.125+2*adjust);
+                }
+            }
+        }
+    }
+}
diff --git a/lib/shape.scad b/lib/shape.scad
new file mode 100644
index 0000000..99cae1d
--- /dev/null
+++ b/lib/shape.scad
@@ -0,0 +1,163 @@
+/*
+
+    slab(size, radius)
+    slab_r(size, radius)
+    slot(hole,length,depth)
+    punchout(width,depth,gap,thick,fillet,shape)
+    hdmi_open(hdmi_style)
+    microusb_open()
+
+*/
+
+/* slab module */
+module slab(size, radius) {
+    
+    x = size[0];
+    y = size[1];
+    z = size[2];   
+    linear_extrude(height=z)
+    hull() {
+        translate([0+radius ,0+radius, 0]) circle(r=radius);	
+        translate([0+radius, y-radius, 0]) circle(r=radius);	
+        translate([x-radius, y-radius, 0]) circle(r=radius);	
+        translate([x-radius, 0+radius, 0]) circle(r=radius);
+    }  
+}
+
+
+/* multi-radius round slab */
+module slab_r(size, radius) {
+    
+    x = size[0];
+    y = size[1];
+    z = size[2];
+    r0 = radius[0];
+    r1 = radius[1];
+    r2 = radius[2];
+    r3 = radius[3];
+    
+    linear_extrude(height=z)
+    hull() {
+        translate([0+radius[0] ,0+radius[0], 0]) circle(r=radius[0]);	
+        translate([0+radius[1], y-radius[1], 0]) circle(r=radius[1]);	
+        translate([x-radius[2], y-radius[2], 0]) circle(r=radius[2]);	
+        translate([x-radius[3], 0+radius[3], 0]) circle(r=radius[3]);
+    }  
+}
+
+
+/* slot module */
+module slot(hole,length,depth) {
+    
+    hull() {
+        translate([0,0,0]) cylinder(d=hole,h=depth);
+        translate([length,0,0]) cylinder(d=hole,h=depth);        
+        }
+    } 
+
+// punchout opening
+module punchout(width,depth,gap,thick,fillet,shape) {
+    
+    adjust = .01;
+    $fn=90;
+
+    // slot punchout
+    if(shape == "slot") {
+        difference() {
+            translate([0,0,0]) slot(depth,width,thick);
+            translate([0,0,-adjust]) slot(depth-gap,width,thick+(2*adjust));
+            // cross ties    
+            translate([-1,-(depth/2)-1,-adjust]) cube([2,depth+2,thick+(2*adjust)]);
+            translate([(width/2)-1-(width/4)+4,-(depth/2)-1,-adjust]) cube([2,depth+2,thick+(2*adjust)]);
+            translate([(width/2)-1+(width/4)-4,-(depth/2)-1,-adjust]) cube([2,depth+2,thick+(2*adjust)]);
+            translate([width-1,-(depth/2)-1,-adjust]) cube([2,depth+2,thick+(2*adjust)]);
+            }
+        }
+    if(shape == "rectangle") {
+        difference() {
+            translate([(width/2),(depth/2),thick/2]) 
+                cube_fillet_inside([width,depth,thick], 
+                    vertical=[fillet,fillet,fillet,fillet], 
+                        top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+            translate([(width/2),(depth/2),(thick/2)-adjust]) 
+                cube_fillet_inside([width-gap,depth-gap,thick+(3*adjust)], 
+                    vertical=[fillet,fillet,fillet,fillet], 
+                        top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+            // cross ties    
+            translate([-1,(depth/2)-1,-adjust]) cube([gap+2,2,thick+(2*adjust)]);
+            translate([width-4,depth-gap-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
+            translate([2,depth-gap-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
+            translate([width-gap-1,(depth/2)-1,-adjust]) cube([gap+2,2,thick+(2*adjust)]);
+            translate([width-4,-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
+            translate([2,-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
+            }
+        }
+    if(shape == "round") {
+        difference() {
+            translate([(width/2),(width/2),0]) 
+                cylinder(d=width, h=thick); 
+            translate([(width/2),(width/2),-adjust]) 
+                cylinder(d=width-gap, h=thick+2*adjust); 
+            // cross ties    
+            translate([-1,(depth/2)-1,-adjust]) cube([gap+2,2,thick+(2*adjust)]);
+            translate([(width/2)-1,depth-gap-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
+            translate([width-gap-1,(depth/2)-1,-adjust]) cube([gap+2,2,thick+(2*adjust)]);
+            translate([(width/2)-1,-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
+            }
+        }
+    }
+
+/* hdmi opening */
+module hdmi_open(hdmi_style) {
+    
+    if(hdmi_style == "hdmi_a") {
+        union() { 
+            difference() {
+                translate([0,-5,1.25]) cube([15.5,8,5.75]);
+                translate([0.5,-5.2,.5]) rotate ([-90,0,0]) cylinder(d=3, h=13.5,$fn=30);
+                translate([15,-5.2,.5]) rotate ([-90,0,0]) cylinder(d=3, h=13.5,$fn=30);
+            }
+            translate([1.75,-5,.5]) cube([12, 8, 1]);
+        }
+    }
+    if(hdmi_style == "hdmi_micro") {
+        union() { 
+            difference() {
+                translate([-.25,-6,-.01]) cube([7,8,3.15]);
+                translate([-.25,-6.2,0]) rotate ([-90,0,0]) cylinder(d=1.5, h=9.5,$fn=30);
+                translate([6.75,-6.2,0]) rotate ([-90,0,0]) cylinder(d=1.5, h=9.5,$fn=30);
+            }
+        }
+    }
+    if(hdmi_style == "hdmi_mini") {
+        union() { 
+            difference() {
+                translate([-.25,-6,-.01]) cube([11.5,8,3.5]);
+                translate([-1,-6.2,-.5]) rotate ([-90,0,0]) cylinder(d=3, h=10,$fn=30);
+                translate([12.25,-6.2,-.5]) rotate ([-90,0,0]) cylinder(d=3, h=10,$fn=30);
+            }
+        }
+    }
+    if(hdmi_style=="dp_mini") {
+        size_x = 9;
+        size_y = 8;        
+        union() {    
+            difference() {
+                translate([-.25,-6,0]) cube([size_x, size_y, 5.75]);
+                translate([-7.5,-7,1]) rotate([0,45,0]) cube([size_x, size_y+2, 5.6]);
+                translate([10,-7,-5]) rotate([0,-45,0]) cube([size_x, size_y+2, 5.6]);                    
+            }
+        }
+    }
+}       
+
+
+/* micro-usb opening */
+module microusb_open() {
+    
+    translate([0,0,.5])rotate([90,0,0])
+    hull() {
+        translate([6,1.5,-5]) cylinder(d=3.5,h=12);
+        translate([1,1.5,-5]) cylinder(d=3.5,h=12);
+    }
+}
diff --git a/lib/standoff.scad b/lib/standoff.scad
new file mode 100644
index 0000000..1a0168e
--- /dev/null
+++ b/lib/standoff.scad
@@ -0,0 +1,97 @@
+/*
+
+    standoff(standoff[radius,height,holesize,supportsize,supportheight,sink,style,i_dia,i_depth])
+
+*/
+
+/* standoff module
+    standoff(standoff[radius,height,holesize,supportsize,supportheight,sink,style,reverse,insert_e,i_dia,i_depth])
+        sink=0 none
+        sink=1 countersink
+        sink=2 recessed hole
+        sink=3 nut holder
+        sink=4 blind hole
+        
+        style=0 hex shape
+        style=1 cylinder
+*/
+module standoff(stand_off){
+
+    radius = stand_off[0];
+    height = stand_off[1];
+    holesize = stand_off[2];
+    supportsize = stand_off[3];
+    supportheight = stand_off[4];
+    sink = stand_off[5];
+    style = stand_off[6];
+    reverse = stand_off[7];
+    insert_e = stand_off[8];
+    i_dia = stand_off[9];
+    i_depth = stand_off[10];
+    
+    adjust = 0.1;
+    
+    difference (){ 
+        union () { 
+            if(style == 0 && reverse == 0) {
+                rotate([0,0,30]) cylinder(d=radius*2/sqrt(3),h=height,$fn=6);
+            }
+            if(style == 0 && reverse == 1) {
+                translate([0,0,-height]) rotate([0,0,30]) cylinder(d=radius*2/sqrt(3),h=height,$fn=6);
+            }
+            if(style == 1 && reverse == 0) {
+                cylinder(d=radius,h=height,$fn=90);
+            }
+            if(style == 1 && reverse == 1) {
+                translate([0,0,-height]) cylinder(d=radius,h=height,$fn=90);
+            }
+            if(reverse == 1) {
+                translate([0,0,-supportheight]) cylinder(d=(supportsize),h=supportheight,$fn=60);
+            }
+            else {
+                cylinder(d=(supportsize),h=supportheight,$fn=60);
+            }
+        }
+        // hole
+        if(sink <= 3  && reverse == 0) {
+                translate([0,0,-adjust]) cylinder(d=holesize, h=height+(adjust*2),$fn=90);
+        }
+        if(sink <= 3  && reverse == 1) {
+                translate([0,0,-adjust-height]) cylinder(d=holesize, h=height+(adjust*2),$fn=90);
+        }
+        // countersink hole
+        if(sink == 1 && reverse == 0) {
+            translate([0,0,-adjust]) cylinder(d1=6.5, d2=(holesize), h=3);
+        }
+        if(sink == 1 && reverse == 1) {
+            translate([0,0,+adjust-2.5]) cylinder(d1=(holesize), d2=6.5, h=3);
+        }
+        // recessed hole
+        if(sink == 2 && reverse == 0) {
+            translate([0,0,-adjust]) cylinder(d=6.5, h=3);
+        }
+        if(sink == 2 && reverse == 1) {
+            translate([0,0,+adjust-3]) cylinder(d=6.5, h=3);
+        }
+        // nut holder
+        if(sink == 3 && reverse == 0) {
+            translate([0,0,-adjust]) cylinder(r=3.3,h=3,$fn=6);     
+        }
+        if(sink == 3 && reverse == 1) {
+            translate([0,0,+adjust-3]) cylinder(r=3.3,h=3,$fn=6);     
+        }
+        // blind hole
+        if(sink == 4 && reverse == 0) {
+            translate([0,0,2]) cylinder(d=holesize, h=height,$fn=90);
+        }
+        if(sink == 4 && reverse == 1) {
+            translate([0,0,-height-2-adjust]) cylinder(d=holesize, h=height,$fn=90);
+        }
+        if(insert_e > 0 && reverse == 0) {
+            translate([0,0,height-i_depth]) cylinder(d=i_dia, h=i_depth+adjust,$fn=90);
+        }
+        if(insert_e > 0 && reverse == 1) {
+            translate([0,0,-height-adjust]) cylinder(d=i_dia, h=i_depth+adjust,$fn=90);
+        }
+    }
+}
diff --git a/lib/vent.scad b/lib/vent.scad
new file mode 100644
index 0000000..c6dc8ee
--- /dev/null
+++ b/lib/vent.scad
@@ -0,0 +1,87 @@
+/*
+
+    vent_hex(cells_x, cells_y, thickness, cell_size, cell_spacing, orientation)
+    vent_panel_hex(x, y, thick, cell_size, cell_spacing, border, borders);
+
+*/
+
+// vent opening
+module vent(width,length,height,gap,rows,columns,orientation) {
+    
+    fillet = width/2;
+    adjust = .01;
+    $fn=90;
+    
+    // vertical orientation
+    if(orientation == "vertical") { rotate([90,0,0])
+        for (r=[0:length+gap:rows*(length+gap)-1]) {
+            for (c=[0:width+(2*gap):(columns*(width+(2*gap)))-1]) {
+                translate ([c,r,-1]) cube([width,length,height]);
+            }
+        }        
+    }
+    // horizontal orientation
+    if(orientation == "horizontal") {
+        for (r=[0:length+(2*gap):rows*(length+gap)]) {
+            for (c=[0:width+(2*gap):(columns*(width+(2*gap)))-1]) {
+                translate ([c,r,-1]) cube([width,length,height]);
+            }
+        }
+    }
+}
+
+// Hex vent opening
+module vent_hex(cells_x, cells_y, thickness, cell_size, cell_spacing, orientation) {
+    xs = cell_size + cell_spacing;
+    ys = xs * sqrt(3/4);
+    rot = (orientation=="vertical") ? 90 : 0;
+
+    rotate([rot,0,0]) translate([cell_size/2, cell_size*sqrt(1/3),-1]) {
+        for (ix = [0 : ceil(cells_x/2)-1]) {
+            for (iy = [0 : 2 : cells_y-1]) {
+                translate([ix*xs, iy*ys,0]) rotate([0,0,90]) 
+                    cylinder(r=cell_size/sqrt(3), h=thickness, $fn=6);
+            }
+        }
+            for (ix = [0 : (cells_x/2)-1]) {
+                for (iy = [1 : 2 : cells_y-1]) {
+                translate([(ix+0.5)*xs, iy*ys,0]) rotate([0,0,90]) 
+                    cylinder(r=cell_size/sqrt(3), h=thickness, $fn=6);
+            }
+        }
+    }
+}
+
+
+
+/* hex vent panel */
+// borders:
+// y - specified size along y axis
+// x - specified size along x axis
+// none - both borders the size of cell_spacing, no mounting holes
+// anything else ("default") - all borders of specified size
+//
+module vent_panel_hex(x, y, thick, cell_size=8, cell_spacing=3, border=3, borders="default") {
+    hole = 3.2;
+    xb = (borders == "y" || borders == "none") ? cell_spacing : border;
+    yb = (borders == "x" || borders == "none") ? cell_spacing : border;
+    hxb = max(yb/2, cell_spacing + hole);
+    hyb = max(xb/2, cell_spacing + hole);
+
+    cells_x = floor((2*(x-2*xb-cell_size)/(cell_size+cell_spacing))+1);
+    cells_y = floor(((sqrt(12)*(y-2*yb)-4*cell_size)/(3*(cell_size+cell_spacing)))+1);
+    csx = cell_size + (cells_x-1)*(cell_size+cell_spacing)/2;
+    csy = sqrt(4/3)*cell_size + ((cell_size+cell_spacing)*sqrt(3/4)*(cells_y-1));
+
+    difference() {
+        color("grey",1) slab([x,y,thick],2);
+	    color("grey",1) translate([(x-csx)/2,(y-csy)/2,-1])
+            vent_hex(cells_x, cells_y, thick+3, cell_size, cell_spacing, "horizontal");
+	    if (borders != "none") {
+	        color("grey",1) translate([    hxb,     hyb, -1]) cylinder(d=hole, h=thick+3);
+	        color("grey",1) translate([x - hxb,     hyb, -1]) cylinder(d=hole, h=thick+3);
+	        color("grey",1) translate([    hxb, y - hyb, -1]) cylinder(d=hole, h=thick+3);
+	        color("grey",1) translate([x - hxb, y - hyb, -1]) cylinder(d=hole, h=thick+3);
+	    }
+    }
+}
diff --git a/mod/add.scad b/mod/add.scad
new file mode 100644
index 0000000..f26ab24
--- /dev/null
+++ b/mod/add.scad
@@ -0,0 +1,150 @@
+/*
+
+    add(type,loc_x,loc_y,loc_z,size_x,size_y,size_z,rotation,face,side,case_z,data_1,data_2,data_3,data_4)
+
+*/
+
+/* addition module */
+module add(type,loc_x,loc_y,loc_z,face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4) {
+    
+    if(type == "rectangle") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) slab_r([size_x,size_y,size_z],data_4);
+    }
+    if(type == "round") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) cylinder(d=size_x,h=size_z);
+    }
+    if(type == "slot") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) slot(size_x,size_y,size_z);
+    }
+    if(type == "text") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) linear_extrude(height = size_z) text(data_3, size=data_1);
+    }    
+    if(type == "art") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) art(data_1,data_2,data_3); 
+    }
+    if(type == "button") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) button(data_3,[size_x,size_y,size_z],data_4,data_1); 
+    }
+    if(type == "button_top") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) button_assembly(data_3,size_x,size_z); 
+    }
+    if(type == "pcb_holder") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) pcb_holder([size_x,size_y,size_z],data_1);
+    }
+    if(type == "batt_holder") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) batt_holder(data_1);
+    }
+    if(type == "uart_holder") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) uart_holder();
+    }
+    if(type == "uart_strap") {
+        color("grey",1) translate([loc_x,loc_y,loc_z]) rotate(rotation) uart_strap();
+    }
+    if(type == "standoff") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) standoff(data_4);
+    }
+    if(type == "hd_holder") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd_mount(data_1,data_3,"horizontal","none"); 
+    }
+    if(type == "hd_vertleft") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd_mount(data_1,data_3,"vertical","left"); 
+    }
+    if(type == "hd_vertright") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd_mount(data_1,data_3,"vertical","right"); 
+    }
+    if(type == "hd25") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd25(data_1); 
+    }
+    if(type == "hd35") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd35(); 
+    }
+    if(type == "hk_wb2") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_wb2(); 
+    }
+    if(type == "hc4_oled") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hc4_oled(); 
+    }
+    if(type == "hc4_oled_holder") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hc4_oled_holder(face,size_z); 
+    }
+    if(type == "h2_netcard") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) h2_netcard(); 
+    }
+    if(type == "hk_lcd35") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk35_lcd(); 
+    }
+    if(type == "hk_m1s_ups") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_m1s_ups(); 
+    }
+    if(type == "hk_uart") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_uart(); 
+    }
+    if(type == "hk_vu7c") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_vu7c(data_1,data_2); 
+    }
+    if(type == "hk_boom") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_boom(data_1,data_3); 
+    }
+    if(type == "boom_speaker") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_boom_speaker(data_3,true,data_1); 
+    }
+    if(type == "boom_grill") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_boom_grill(data_3,size_z); 
+    }
+    if(type == "boom_speaker_holder") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) boom_speaker_holder(data_1); 
+    }
+    if(type == "hk_speaker") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_speaker(); 
+    }
+    if(type == "fan_cover") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) fan_cover(size_x, size_z);
+    }
+    if(type == "vent_panel_hex") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) vent_panel_hex(x=size_x, y=size_y, thick=size_z, 
+            cell_size=data_1, cell_spacing=data_2, border=data_4, borders=data_3);
+    }
+    if(type == "feet") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) feet(size_x, size_z);
+    }
+    if(type == "access_port") {
+        if(rotation[2] == 180) {
+            translate([loc_x+size_x,loc_y+size_y,loc_z])  rotate(rotation) access_port([size_x,size_y,size_z],data_3);
+        }
+        else {
+            translate([loc_x,loc_y,loc_z])  rotate(rotation) access_port([size_x,size_y,size_z],data_3);
+        }
+    }
+    if(type == "access_cover") {
+        if(rotation[2] == 180) {
+            color("grey",1) translate([loc_x+size_x,loc_y+size_y,loc_z])  rotate(rotation) access_cover([size_x,size_y,size_z],data_3);
+        }
+        else {
+            color("grey",1) translate([loc_x,loc_y,loc_z]) rotate(rotation) access_cover([size_x,size_y,size_z],data_3);
+        }
+    }
+    if(type == "boom_vring") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) boom_vring(data_1);
+    }
+    if(type == "h3_port_extender") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) h3_port_extender(data_3); 
+    }
+    if(type == "h3_port_extender_holder") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) h3_port_extender_holder(data_3,data_1); 
+    }
+    if(type == "hk_pwr_button") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_pwr_button(); 
+    }
+    if(type == "keyhole") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) keyhole(data_4); 
+    }
+    if(type == "dsub") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) dsub(data_4); 
+    }
+    if(type == "nut_holder") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) nut_holder(data_1, data_2, size_x, size_y, size_z); 
+    }
+    if(type == "standoff") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) standoff(data_4);
+    }
+}
diff --git a/mod/case_bottom.scad b/mod/case_bottom.scad
new file mode 100644
index 0000000..4a81c08
--- /dev/null
+++ b/mod/case_bottom.scad
@@ -0,0 +1,680 @@
+
+
+// case bottom
+module case_bottom(case_design) {
+
+    difference() {
+        union() {
+            difference() {
+                union() {
+                    if(case_design == "shell") {
+                        difference() {
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,bottom_height/2]) 
+                                cube_fillet_inside([width,depth,bottom_height], 
+                                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                        top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                            translate([(width/2)-wallthick-gap,
+                                (depth/2)-wallthick-gap,(bottom_height/2)+floorthick]) 
+                                    cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),bottom_height], 
+                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
+                                            top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                        }
+                    }
+                    if(case_design == "panel") {
+                       union() {
+                           translate([-gap,-gap,0]) 
+                                cube([width-(2*wallthick),depth-(2*wallthick),floorthick]);
+                            translate([(width*(1/5))-8-(wallthick+gap),depth-(2*wallthick)-gap-adj,0]) 
+                                    cube([8,wallthick+2*adj,floorthick]);
+                            translate([width-(width*(1/5))-(wallthick+gap),depth-(2*wallthick)-gap-adj,0])
+                                    cube([8,wallthick+2*adj,floorthick]);                   
+                            translate([(width*(1/5))-8-(wallthick+gap),-wallthick-gap+adj,0])
+                                    cube([8,wallthick+2*adj,floorthick]);
+                            translate([width-(width*(1/5))-(wallthick+gap),-wallthick-gap+adj,0])
+                                    cube([8,wallthick+2*adj,floorthick]);
+                        }
+                    }
+                    if(case_design == "stacked") {
+                        translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,floorthick/2]) 
+                            cube_fillet_inside([width-(2*wallthick),depth-(2*wallthick),floorthick], 
+                                vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                    top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                    }
+                    if(case_design == "tray") {
+                        difference() {
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,(bottom_height)/2]) 
+                                cube_fillet_inside([width,depth,bottom_height], 
+                                    vertical=[0,0,0,0], top=[0,0,0,0], 
+                                        bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,(bottom_height/2)+floorthick]) 
+                                cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),bottom_height+adj], 
+                                    vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
+                                        top=[0,0,0,0],bottom=[2,2,2,2], $fn=90);
+                        }
+                        // right side nut  
+                        translate([width-wallthick-gap-wallthick-4+adj,wallthick+gap+10,
+                                floorthick+3.4]) rotate([90,0,90]) 
+                                    cylinder(d=10, h=4, $fn=6);
+                        // left side nut
+                        translate([-adj-gap,wallthick+gap+10,floorthick+3.4]) 
+                            rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
+                        if(depth >= 75 && sbc_model != "visionfive2" && sbc_model != "visionfive2q" && sbc_model != "rock5b-v1.42" && sbc_model != "rock5bq-v1.42" && sbc_model != "rock5b-v1.3") {
+                            translate([width-wallthick-gap-wallthick-4+adj,depth-wallthick-gap-10,
+                                    floorthick+3.4]) rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
+                            translate([-adj-gap,depth-wallthick-gap-10,floorthick+3.4]) 
+                                rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);                        
+                        }
+                        else {
+                            if(sbc_model == "visionfive2" || sbc_model == "visionfive2q" || sbc_model == "rock5b-v1.42" ||  sbc_model == "rock5bq-v1.42" || sbc_model == "rock5b-v1.3") {
+                                translate([width-wallthick-gap-wallthick-4+adj,wallthick+gap+58,
+                                        floorthick+3.4]) rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
+                                translate([-adj-gap,wallthick+gap+58,floorthick+3.4]) 
+                                    rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
+                            }
+                            else {
+                                translate([width-wallthick-gap-wallthick-4+adj,wallthick+gap+40,
+                                        floorthick+3.4]) rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
+                                translate([-adj-gap,wallthick+gap+40,floorthick+3.4]) 
+                                    rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
+                            }
+                        }
+                        
+                        // front panel
+                        if(case_style == "sides" || case_style == "vu5" || case_style == "vu7") {
+                            translate([-wallthick-gap,depth-(2*wallthick)-gap,bottom_height-adj]) 
+                                rotate([0,0,0]) cube([width,wallthick,top_height]);
+                        }
+                        else {
+                            translate([-wallthick-gap,depth-(2*wallthick)-gap,bottom_height-adj]) 
+                                rotate([0,0,0]) cube([width,wallthick,top_height-floorthick]);
+                        }
+                        
+                        // rear panel
+                        translate([-wallthick-gap,-wallthick-gap,bottom_height-adj]) 
+                            cube([width,wallthick,top_height-floorthick]);
+                        
+                    }                  
+                    if(case_design == "round") {
+                        difference() {
+                            translate([pcb_width/2,pcb_depth/2,bottom_height/2]) rotate([0,0,30]) 
+                                cylinder_fillet_inside(h=bottom_height, r=case_diameter/2, 
+                                    top=0, bottom=fillet, $fn=case_fn, fillet_fn=case_ffn, center=true);
+                            translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+floorthick]) rotate([0,0,30]) 
+                                cylinder_fillet_inside(h=bottom_height+adj, r=(case_diameter/2)-lip/2, 
+                                    top=0, bottom=fillet-1, $fn=case_fn, fillet_fn=case_ffn, center=true);
+                            difference() {
+                                translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,30]) 
+                                    cylinder(h=lip+adj, r=(case_diameter/2)+1, $fn=case_fn);
+                                translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,30]) 
+                                    cylinder(h=lip+2*adj, r=(case_diameter/2)-lip/4, $fn=case_fn);
+                            }
+                        }
+                        difference() {
+                            translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+2*floorthick]) rotate([0,0,30]) 
+                                cylinder_fillet_inside(h=bottom_height+adj+floorthick+lip,
+                                    r=(case_diameter/2)-lip/2,top=0,bottom=fillet-1, $fn=case_fn, 
+                                        fillet_fn=case_ffn, center=true);
+                            if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
+                               sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
+                                    sbc_model != "rpizero" && sbc_model != "rpizero2w") {
+                                translate([-16,(depth/2)-150,-adj])
+                                    cube([width+10,300,case_z-2*floorthick-2]); 
+                                translate([width-9,(depth/2)-62.5,bottom_height-2*adj])
+                                    cube([20,110,top_height-2*floorthick-2]);
+                            }
+                            else {
+                                translate([-width/2,0,-adj])
+                                    cube([300,depth+100,case_z-2*floorthick-2]); 
+                                translate([(-width+50)/2,-50,bottom_height-2*adj])
+                                    cube([width+50,50+adj,top_height-2*floorthick-2]);
+                            }
+                        }
+                    }                    
+                    if(case_design == "hex") {
+                        if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
+                            sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
+                                sbc_model != "rpizero" && sbc_model != "rpizero2w") {
+                            difference() {
+                                translate([pcb_width/2,pcb_depth/2,bottom_height/2]) rotate([0,0,30]) 
+                                    cylinder_fillet_inside(h=bottom_height, r=case_diameter/2, 
+                                        top=0, bottom=fillet, $fn=6, fillet_fn=case_ffn, center=true);
+                                translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+floorthick]) rotate([0,0,30]) 
+                                    cylinder_fillet_inside(h=bottom_height+adj,r=(case_diameter/2)-lip/2,top=0, 
+                                        bottom=fillet-1,$fn=6,fillet_fn=case_ffn, center=true);
+                                difference() {
+                                    translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,30]) 
+                                        cylinder(h=lip+adj,r=(case_diameter/2)+1, $fn=6);
+                                    translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,30]) 
+                                        cylinder(h=lip+2*adj,r=(case_diameter/2)-lip/4, $fn=6);
+                                }
+                            }
+                            difference() {
+                                translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+2*floorthick]) rotate([0,0,30]) 
+                                    cylinder_fillet_inside(h=bottom_height+adj+floorthick+lip,
+                                        r=(case_diameter/2)-lip/2,top=0, bottom=fillet-1, $fn=6, 
+                                            fillet_fn=case_ffn, center=true);
+                                translate([-16,(depth/2)-150,-adj])
+                                    cube([width+10,300,case_z-2*floorthick-2]); 
+                                translate([width-9,(depth/2)-62.5,bottom_height-2*adj])
+                                    cube([20,110,top_height-2*floorthick-2]); 
+                            }
+                        }
+                        else {
+                            difference() {
+                                translate([pcb_width/2,pcb_depth/2,bottom_height/2]) rotate([0,0,0]) 
+                                    cylinder_fillet_inside(h=bottom_height, r=hex_diameter/2, 
+                                        top=0, bottom=fillet, $fn=6, fillet_fn=case_ffn, center=true);
+                                translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+floorthick]) rotate([0,0,0]) 
+                                    cylinder_fillet_inside(h=bottom_height+adj,r=(hex_diameter/2)-lip/2,top=0, 
+                                        bottom=fillet-1,$fn=6,fillet_fn=case_ffn, center=true);
+                                difference() {
+                                    translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,0]) 
+                                        cylinder(h=lip+adj,r=(hex_diameter/2)+1, $fn=6);
+                                    translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,0]) 
+                                        cylinder(h=lip+2*adj,r=(hex_diameter/2)-lip/4, $fn=6);
+                                }
+                            }
+                            difference() {
+                                translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+2*floorthick]) rotate([0,0,0]) 
+                                    cylinder_fillet_inside(h=bottom_height+adj+floorthick+lip,
+                                        r=(hex_diameter/2)-lip/2,top=0, bottom=fillet-1, $fn=6, 
+                                            fillet_fn=case_ffn, center=true);
+                                translate([-width/2,0,-adj])
+                                    cube([300,depth+100,case_z-2*floorthick-2]); 
+                                translate([(-width+50)/2,-50,bottom_height-2*adj])
+                                    cube([width+50,50+adj,top_height-2*floorthick-2]);
+                            }                            
+                        }
+                    }                    
+                    if(case_design == "snap") {
+                        difference() {
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,(floorthick+case_z)/2]) 
+                                cube_fillet_inside([width,depth,floorthick+case_z], 
+                                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                        top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,floorthick+(floorthick+case_z)/2]) 
+                                cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),case_z+floorthick], 
+                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
+                                            top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                            // snap top indent
+                            translate([-gap-wallthick+.75,(depth/2)-(depth*.75)/2-gap-wallthick,case_z-.5]) 
+                                rotate([0,45,0]) cube([4,depth*.75,4]);
+                            translate([width-wallthick-gap-6.25,(depth/2)-(depth*.75)/2-gap-wallthick,case_z-.5])
+                                rotate([0,45,0]) cube([4,depth*.75,4]);
+                        }
+                    }
+                    if(case_design == "fitted") {
+                        difference() {
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z/2]) 
+                                cube_fillet_inside([width,depth,case_z], 
+                                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                        top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                            translate([(width/2)-wallthick-gap,
+                                (depth/2)-wallthick-gap,(case_z/2)+floorthick]) 
+                                    cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),case_z], 
+                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
+                                            top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                            difference() {
+                                translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-lip/2]) 
+                                    cube_fillet_inside([width+adj,depth+adj,lip+adj], 
+                                        vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                            top=[0,0,0,0],bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                                
+                                translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-lip/2]) 
+                                    cube_fillet_inside([width-wallthick,depth-wallthick,lip+adj], 
+                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],top=[0,0,0,0],
+                                            bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                            }
+                        }
+                    }
+                    // additive accessories
+                    if(accessory_name != "none") {
+                        for (i=[1:15:len(accessory_data[a[0]])-1]) {
+                            class = accessory_data[a[0]][i];
+                            type = accessory_data[a[0]][i+1];
+                            loc_x = accessory_data[a[0]][i+2];
+                            loc_y = accessory_data[a[0]][i+3];
+                            loc_z = accessory_data[a[0]][i+4];
+                            face = accessory_data[a[0]][i+5];
+                            rotation = accessory_data[a[0]][i+6];
+                            parametric = accessory_data[a[0]][i+7];
+                            size_x = accessory_data[a[0]][i+8];
+                            size_y = accessory_data[a[0]][i+9];
+                            size_z = accessory_data[a[0]][i+10];
+                            data_1 = accessory_data[a[0]][i+11];
+                            data_2 = accessory_data[a[0]][i+12];
+                            data_3 = accessory_data[a[0]][i+13];
+                            data_4 = accessory_data[a[0]][i+14];
+
+                            if(class == "add1" && face == "bottom") {
+                                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                                    size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                            }
+                        }
+                    }
+                }
+                // side attachment holes
+                if(case_design == "tray") {
+                    // right side bottom attachment holes          
+                    translate([width-2*(wallthick+gap)-sidethick-adj,wallthick+gap+10,
+                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                    // right side bottom nut inset          
+                    translate([width-3.5-(2*wallthick)-gap-.6,wallthick+gap+10,
+                        floorthick+3.4]) rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
+                    // left side bottom attachment holes
+                    translate([-wallthick-gap-adj,wallthick+gap+10,floorthick+3.4]) rotate([0,90,0]) 
+                            cylinder(d=3, h=10+sidethick+(2*adj));
+                    // left side bottom nut inset
+                    translate([-gap+.6,wallthick+gap+10,floorthick+3.4]) 
+                        rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
+                    if(depth >= 75 && sbc_model != "visionfive2" && sbc_model != "visionfive2q" && sbc_model != "rock5b-v1.42" && sbc_model != "rock5bq-v1.42" && sbc_model != "rock5b-v1.3") {
+                        translate([width-2*(wallthick+gap)-sidethick-adj,depth-wallthick-gap-10,
+                            floorthick+3.4]) rotate([0,90,0]) 
+                                cylinder(d=3, h=10+sidethick+(2*adj));
+                        translate([-wallthick-gap-adj-6,depth-wallthick-gap-10,
+                            floorthick+3.4]) rotate([0,90,0]) 
+                                cylinder(d=3, h=10+sidethick+(2*adj));
+                        translate([width-3.5-(2*wallthick)-gap-.6,depth-wallthick-gap-10,
+                            floorthick+3.4])rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
+                        translate([-gap+.6,depth-wallthick-gap-10,floorthick+3.4]) 
+                            rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
+                    }
+                    else {
+                        if(sbc_model == "visionfive2" || sbc_model == "visionfive2q" || sbc_model == "rock5b-v1.42" ||  sbc_model == "rock5bq-v1.42" || sbc_model == "rock5b-v1.3") {
+                            translate([width-3*(wallthick+gap)-adj,wallthick+gap+58,
+                                floorthick+3.4]) rotate([0,90,0]) 
+                                    cylinder(d=3, h=10+sidethick+(2*adj));
+                            translate([-wallthick-gap-adj-6,wallthick+gap+58,
+                                floorthick+3.4]) rotate([0,90,0]) 
+                                    cylinder(d=3, h=10+sidethick+(2*adj));
+                            translate([width-3.5-(2*wallthick)-gap-.6,wallthick+gap+58,
+                                floorthick+3.4])rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
+                            translate([-gap+.6,wallthick+gap+58,floorthick+3.4]) 
+                                rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
+                        }
+                        else {                         
+                            translate([width-3*(wallthick+gap)-adj,wallthick+gap+40,
+                                floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                            translate([-wallthick-gap-adj-6,wallthick+gap+40,
+                                floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                            translate([width-3.5-(2*wallthick)-gap-.6,wallthick+gap+40,
+                                floorthick+3.4])rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
+                            translate([-gap+.6,wallthick+gap+40,floorthick+3.4]) 
+                                rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
+                        }
+                    }
+                }
+                // pcb standoff holes
+                if(sbc_bottom_standoffs == true && bottom_standoff[5] != 4) {
+                    for (i=[1:11:len(sbc_data[s[0]])-2]) {
+                        class = sbc_data[s[0]][i+1];
+                        type = sbc_data[s[0]][i+2];
+                        id = sbc_data[s[0]][i+3];
+                        pcb_hole_x = sbc_data[s[0]][i+4];
+                        pcb_hole_y = sbc_data[s[0]][i+5];
+                        pcb_hole_z = sbc_data[s[0]][i+6];
+                        pcb_hole_size = sbc_data[s[0]][i+9][0];                        
+                        pcb_hole_pos = sbc_data[s[0]][i+10][4];                        
+                        if(class == "pcbhole" && id == pcb_id && (pcb_hole_pos == "left_rear" || pcb_hole_pos == "left_front" || pcb_hole_pos == "right_rear" || pcb_hole_pos == "right_front")) {
+                            translate([pcb_hole_x,pcb_hole_y,-1]) cylinder(d=6.5, h=bottom_height);
+                        }
+                    }
+                }
+
+
+                // extended standoff holes
+                if(case_ext_standoffs == true) {
+                    // right-rear standoff
+                    if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
+                        translate([width-(2*(wallthick+gap))-(c_fillet/2),(c_fillet/2),-1]) cylinder(d=6.5, h=bottom_height);
+                    }
+                    // right-front standoff
+                    if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) || width-pcb_loc_x-pcb_width >= 10) {
+                        translate([width-(c_fillet/2)-(2*(wallthick+gap)),
+                        depth-(c_fillet/2)-(2*(wallthick+gap)),-1]) cylinder(d=6.5, h=bottom_height);
+                    }
+                    // left-rear standoff
+                    if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
+                        translate([(c_fillet/2),(c_fillet/2),-1]) cylinder(d=6.5, h=bottom_height);
+                    }
+                    // left-front standoff
+                    if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
+                        translate([(c_fillet/2),depth-(c_fillet/2)-(2*(wallthick+gap)),-1]) 
+                            cylinder(d=6.5, h=bottom_height);
+                    }
+                }
+            }
+            // pcb standoffs
+            if(sbc_bottom_standoffs  == true) {
+                    for (i=[1:11:len(sbc_data[s[0]])-2]) {
+                        class = sbc_data[s[0]][i+1];
+                        type = sbc_data[s[0]][i+2];
+                        id = sbc_data[s[0]][i+3];
+                        pcb_hole_x = sbc_data[s[0]][i+4];
+                        pcb_hole_y = sbc_data[s[0]][i+5];
+                        pcb_hole_z = sbc_data[s[0]][i+6];
+                        pcb_hole_size = sbc_data[s[0]][i+9][0];                        
+                        pcb_hole_pos = sbc_data[s[0]][i+10][4];                        
+                        
+                    if(pcb_hole_x!=0 && pcb_hole_y!=0) {
+                        if (pcb_hole_pos == "left_rear") {
+                            normal_standoff = [bottom_standoff[0],
+                                                bottom_height-pcb_z+pcb_loc_z+bottom_rear_left,
+                                                bottom_standoff[2],
+                                                bottom_standoff[3],
+                                                bottom_standoff[4],
+                                                bottom_standoff[5],
+                                                bottom_standoff[6],
+                                                bottom_standoff[7],
+                                                bottom_standoff[8],
+                                                bottom_standoff[9],
+                                                bottom_standoff[10]];
+                            translate([pcb_hole_x,pcb_hole_y,0]) standoff(normal_standoff);
+                        }
+                        if (pcb_hole_pos == "left_front") {
+                            normal_standoff = [bottom_standoff[0],
+                                                bottom_height-pcb_z+pcb_loc_z+bottom_front_left,
+                                                bottom_standoff[2],
+                                                bottom_standoff[3],
+                                                bottom_standoff[4],
+                                                bottom_standoff[5],
+                                                bottom_standoff[6],
+                                                bottom_standoff[7],
+                                                bottom_standoff[8],
+                                                bottom_standoff[9],
+                                                bottom_standoff[10]];
+                            translate([pcb_hole_x,pcb_hole_y,0]) standoff(normal_standoff);
+                        }
+                        if (pcb_hole_pos == "right_rear") {
+                            normal_standoff = [bottom_standoff[0],
+                                                bottom_height-pcb_z+pcb_loc_z+bottom_rear_right,
+                                                bottom_standoff[2],
+                                                bottom_standoff[3],
+                                                bottom_standoff[4],
+                                                bottom_standoff[5],
+                                                bottom_standoff[6],
+                                                bottom_standoff[7],
+                                                bottom_standoff[8],
+                                                bottom_standoff[9],
+                                                bottom_standoff[10]];
+                            translate([pcb_hole_x,pcb_hole_y,0]) standoff(normal_standoff);
+                        }
+                        if (pcb_hole_pos == "right_front") {
+                            normal_standoff = [bottom_standoff[0],
+                                                bottom_height-pcb_z+pcb_loc_z+bottom_front_right,
+                                                bottom_standoff[2],
+                                                bottom_standoff[3],
+                                                bottom_standoff[4],
+                                                bottom_standoff[5],
+                                                bottom_standoff[6],
+                                                bottom_standoff[7],
+                                                bottom_standoff[8],
+                                                bottom_standoff[9],
+                                                bottom_standoff[10]];
+                            translate([pcb_hole_x,pcb_hole_y,0]) standoff(normal_standoff);
+                        }
+                    }
+                }
+            }
+
+            // extended standoffs
+            if(case_ext_standoffs == true) {
+                // right-rear standoff
+                if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
+                    translate([width-(2*(wallthick+gap))-(c_fillet/2),(c_fillet/2),0]) standoff(bottom_ext_standoff);
+                }
+                // right-front standoff
+                if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) || width-pcb_loc_x-pcb_width >= 10) {
+                    translate([width-(c_fillet/2)-(2*(wallthick+gap)),
+                        depth-(c_fillet/2)-(2*(wallthick+gap)),0]) standoff(bottom_ext_standoff);
+                }
+                // left-rear standoff
+                if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
+                    translate([(c_fillet/2),(c_fillet/2),0]) standoff(bottom_ext_standoff);                
+                }
+                // left-front standoff
+                if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
+                    translate([(c_fillet/2),depth-(c_fillet/2)-(2*(wallthick+gap)),0]) 
+                        standoff(bottom_ext_standoff);                
+                }
+            }
+            // standoff sidewall support
+            if(sidewall_support == true && sbc_bottom_standoffs == true) {
+                if(pcb_width/pcb_depth >= 1.4) {
+                    for (i=[1:11:len(sbc_data[s[0]])-2]) {
+                        pcb_hole_x = sbc_data[s[0]][i+4]+pcb_loc_x;
+                        pcb_hole_y = sbc_data[s[0]][i+5]+pcb_loc_y;
+                        pcb_hole_z = sbc_data[s[0]][i+6];
+                        pcb_hole_size = sbc_data[s[0]][i+9][0];                        
+                        pcb_hole_pos = sbc_data[s[0]][i+10][4];                        
+                            
+                        if(pcb_hole_x!=0 && pcb_hole_y!=0) {
+                            if(pcb_hole_pos == "left_rear") {
+                                translate([pcb_hole_x-1, pcb_hole_y-(bottom_standoff[0]/2)-(gap+adj)-1,0])
+                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_rear_left]);
+                            }
+                            if(pcb_hole_pos == "left_front") {
+                                translate([pcb_hole_x-1, pcb_hole_y+(bottom_standoff[0]/2)-.6+adj,0])
+                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_front_left]);
+                            }
+                            if(pcb_hole_pos == "right_rear") {
+                                translate([pcb_hole_x-1, pcb_hole_y-(bottom_standoff[0]/2)-(gap+adj)-1,0])
+                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_rear_right]);
+                            }
+                            if(pcb_hole_pos == "right_front") {
+                                translate([pcb_hole_x-1, pcb_hole_y+(bottom_standoff[0]/2)-.6+adj,0])
+                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_front_right]);
+                            }
+                        }
+                    }
+                }
+                else {
+                    for (i=[1:11:len(sbc_data[s[0]])-2]) {
+                        pcb_hole_x = sbc_data[s[0]][i+4]+pcb_loc_x;
+                        pcb_hole_y = sbc_data[s[0]][i+5]+pcb_loc_y;
+                        pcb_hole_z = sbc_data[s[0]][i+6];
+                        pcb_hole_size = sbc_data[s[0]][i+9][0];                        
+                        pcb_hole_pos = sbc_data[s[0]][i+10][4];
+
+                        if(pcb_hole_x!=0 && pcb_hole_y!=0) {
+                            if(pcb_hole_pos == "left_rear" && sbc_model != "n2l") {
+                                translate([pcb_hole_x-(bottom_standoff[0]/2)-2.6+adj, pcb_hole_y-gap,0])
+                                    cube([gap+1.6,2,bottom_height-pcb_z+pcb_loc_z+bottom_rear_left]);
+                            }
+                            if (pcb_hole_pos == "left_rear" && sbc_model == "n2l") {
+                                translate([pcb_hole_x-1, pcb_hole_y-(bottom_standoff[0]/2)-(gap+adj)-1,0])
+                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_rear_left]);
+                            }
+                            if(pcb_hole_pos == "left_front" && sbc_model != "n2l") {
+                                translate([pcb_hole_x-(bottom_standoff[0]/2)-2.6+adj, pcb_hole_y-gap,0])
+                                    cube([gap+1.6,2,bottom_height-pcb_z+pcb_loc_z+bottom_front_left]);
+                            }
+                            if(pcb_hole_pos == "left_front" && sbc_model == "n2l") {
+                                translate([pcb_hole_x-1, pcb_hole_y+(bottom_standoff[0]/2)-.6+adj,0])
+                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_front_left]);
+                            }
+                            if (pcb_hole_pos == "right_rear") {
+                                translate([pcb_hole_x+(bottom_standoff[0]/2)-.5+adj, pcb_hole_y-gap,0])
+                                    cube([gap+1.5,2,bottom_height-pcb_z+pcb_loc_z+bottom_rear_right]);
+                            }
+                            if (pcb_hole_pos == "right_front") {
+                                translate([pcb_hole_x+(bottom_standoff[0]/2)-.5+adj, pcb_hole_y-gap,0])
+                                    cube([gap+1.5,2,bottom_height-pcb_z+pcb_loc_z+bottom_front_right]);
+                            }
+                        }
+                    }                 
+                }
+            }
+            // extended standoff sidewall support
+            if(case_ext_standoffs == true && sidewall_support == true) {
+                // right-rear standoff
+                if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
+                    translate([width-(2*(wallthick+gap))-(c_fillet/2)+(bottom_ext_standoff[0]/2)-.5,
+                        (c_fillet/2)-1,0]) cube([gap+adj+2,2,bottom_ext_standoff[1]]);
+                }
+                // right-front standoff    
+                if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) 
+                    || width-pcb_loc_x-pcb_width >= 10) {
+                        translate([width-(2*(wallthick+gap))-(c_fillet/2)+(bottom_ext_standoff[0]/2)-.5,
+                            depth-(c_fillet/2)-(2*(wallthick+gap))-1,0])
+                                cube([gap+adj+2,2,bottom_ext_standoff[1]]);
+                }
+                // left-rear standoff
+                if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
+                    translate([(c_fillet/2)-(wallthick+gap)-(bottom_ext_standoff[0]/2)+.6,
+                        (c_fillet/2)-1,0]) cube([gap+adj+2,2,bottom_ext_standoff[1]]);
+                }              
+                // left-front standoff
+                if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
+                    translate([(c_fillet/2)-(wallthick+gap)-(bottom_ext_standoff[0]/2)+.6,
+                        depth-(c_fillet/2)-(2*(wallthick+gap))-1,0]) 
+                            cube([gap+adj+2,2,bottom_ext_standoff[1]]);
+                }
+            }
+        }
+        // subtractive accessories
+        if(accessory_name != "none") {
+            for (i=[1:15:len(accessory_data[a[0]])-1]) {
+                class = accessory_data[a[0]][i];
+                type = accessory_data[a[0]][i+1];
+                loc_x = accessory_data[a[0]][i+2];
+                loc_y = accessory_data[a[0]][i+3];
+                loc_z = accessory_data[a[0]][i+4];
+                face = accessory_data[a[0]][i+5];
+                rotation = accessory_data[a[0]][i+6];
+                parametric = accessory_data[a[0]][i+7];
+                size_x = accessory_data[a[0]][i+8];
+                size_y = accessory_data[a[0]][i+9];
+                size_z = accessory_data[a[0]][i+10];
+                data_1 = accessory_data[a[0]][i+11];
+                data_2 = accessory_data[a[0]][i+12];
+                data_3 = accessory_data[a[0]][i+13];
+                data_4 = accessory_data[a[0]][i+14];
+                
+                if ((class == "sub" && face == "bottom") || class == "suball") {
+                    if(accessory_highlight == false) {
+                        parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                    }
+                    else {
+                        #parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+
+                    }
+                }
+                // create openings for additive 
+                if (class == "add2" && face == "bottom" && type == "standoff") {
+                    parametric_move_sub("round",loc_x,loc_y,loc_z-.1,face,rotation,parametric,
+                        6.5,size_y,floorthick+1,data_1,data_2,data_3,data_4);
+                }
+                if ((class == "add1" || class == "add2") && type == "uart_holder") {
+                    if(accessory_highlight == false) {
+                            parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
+                                0,0,0,data_1,data_2,data_3,data_4);
+                    }
+                    else {
+                            #parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
+                                0,0,0,data_1,data_2,data_3,data_4);
+                    }
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "hc4_oled_holder") {
+                    parametric_move_sub("rectangle",loc_x+1,loc_y+1.75,loc_z+25.5,face,rotation,parametric,
+                        26.5,wallthick+gap+4,15,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "access_port") {
+                    if(data_3 == "landscape") {
+                        if(rotation[2] == 180) {
+                            parametric_move_sub("rectangle",loc_x-6+size_x,loc_y+.5+size_y,loc_z-adj,face,rotation,
+                                parametric,size_x-17,size_y-1,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                            parametric_move_sub("rectangle",loc_x-size_x+12.5+size_x,loc_y-(size_y/2)+6+size_y,loc_z-adj,
+                                face,rotation,parametric,5.5,10.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
+                        }
+                        else {
+                            parametric_move_sub("rectangle",loc_x+6,loc_y-.5,loc_z-adj,face,rotation,
+                                parametric,size_x-17,size_y-1,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                            parametric_move_sub("rectangle",loc_x+size_x-12.5,loc_y+(size_y/2)-6,loc_z-adj,face,rotation,
+                                parametric,5.5,10.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
+                            
+                        }
+                    }
+                    else {
+                        if(rotation[2] == 180) {
+                            if(data_3 == "portrait") {
+                                parametric_move_sub("rectangle",loc_x+size_x-.5,loc_y+size_y-5.75,loc_z-adj,face,
+                                    rotation,parametric,size_x-1,size_y-17,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                                parametric_move_sub("rectangle",loc_x-(size_x/2)+5+size_x,loc_y-size_y+12.5+size_y,
+                                    loc_z-adj,face,rotation,parametric,10.5,5.5,floorthick+.12,data_1,data_2,data_3,
+                                        [5.5,5.5,5.5,5.5]);
+                            }
+                            else {
+                                parametric_move_sub("rectangle",loc_x-.5,loc_y-5.75,loc_z-adj,face,rotation,
+                                    parametric,size_x-1,size_y-17,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                                parametric_move_sub("rectangle",loc_x-(size_x/2)+5,loc_y-size_y+12.5,loc_z-adj,face,
+                                rotation,parametric,10.5,5.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
+                            }
+                        }
+                        else {
+                            parametric_move_sub("rectangle",loc_x+.5,loc_y+5.75,loc_z-adj,face,rotation,
+                                parametric,size_x-1,size_y-17,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                            parametric_move_sub("rectangle",loc_x+(size_x/2)-5,loc_y+size_y-12.5,loc_z-adj,face,rotation,
+                                parametric,10.5,5.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
+                        }
+                    }
+                }
+                if ((class == "model") && face == "bottom" && type == "h2_netcard") {
+                    parametric_move_sub("rectangle",loc_x+25,loc_y-6,loc_z-14,face,rotation,
+                        parametric,68.5,wallthick+3,14.5,data_1,data_2,data_3,[1,1,1,1]);
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "button") {
+                    if(data_3 == "recess") {
+                        #parametric_move_sub("sphere",loc_x,loc_y,loc_z,face,rotation,
+                            parametric,size_x-1,size_y,size_z,data_1,data_2,data_3,0);
+                    }
+                    if(data_3 == "cutout") {
+                        parametric_move_sub("rectangle",loc_x+10,loc_y+4,loc_z-adj,face,rotation,
+                            parametric,size_x+2,size_y+1,size_z+2*adj,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                    }
+                }
+            }                   
+        }
+        // sbc openings
+        if(sbc_highlight == true) {
+            #translate([pcb_loc_x ,pcb_loc_y,bottom_height-pcb_z+pcb_loc_z-adj]) sbc(sbc_model,"default",0,"default","default",true);
+        }
+        else {
+            translate([pcb_loc_x ,pcb_loc_y,bottom_height-pcb_z+pcb_loc_z-adj]) sbc(sbc_model,"default",0,"default","default",true);
+        }
+        // clean fillets
+        if(case_design == "shell") {
+            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,bottom_height/2]) 
+                cube_negative_fillet([width,depth,bottom_height], radius=-1,
+                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], top=[0,0,0,0], 
+                            bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+        }
+    }
+    // additive accessories
+    if(accessory_name != "none") {
+        for (i=[1:15:len(accessory_data[a[0]])-1]) {
+            class = accessory_data[a[0]][i];
+            type = accessory_data[a[0]][i+1];
+            loc_x = accessory_data[a[0]][i+2];
+            loc_y = accessory_data[a[0]][i+3];
+            loc_z = accessory_data[a[0]][i+4];
+            face = accessory_data[a[0]][i+5];
+            rotation = accessory_data[a[0]][i+6];
+            parametric = accessory_data[a[0]][i+7];
+            size_x = accessory_data[a[0]][i+8];
+            size_y = accessory_data[a[0]][i+9];
+            size_z = accessory_data[a[0]][i+10];
+            data_1 = accessory_data[a[0]][i+11];
+            data_2 = accessory_data[a[0]][i+12];
+            data_3 = accessory_data[a[0]][i+13];
+            data_4 = accessory_data[a[0]][i+14];
+            
+            if(class == "add2" && face == "bottom") {
+                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                    size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+            }
+        }
+    }
+}
diff --git a/mod/case_side.scad b/mod/case_side.scad
new file mode 100644
index 0000000..dc87abc
--- /dev/null
+++ b/mod/case_side.scad
@@ -0,0 +1,322 @@
+
+
+// case side
+module case_side(case_design,case_style,side) {
+    
+    difference() {
+        union() {
+            if(case_design == "panel") {
+                if(side == "rear") {
+                    difference() {
+                        union() {
+                            translate([-gap,-wallthick-gap,-floorthick]) 
+                                cube([width-2*wallthick,wallthick,case_z+2*floorthick]);
+                            // right hook
+                            difference() {
+                                translate([width-(2*wallthick)-gap-adj,-wallthick-gap,
+                                    ((case_z)/2)-4]) 
+                                        cube([(2*wallthick)+.5,wallthick,8]);
+                                translate([width-(2*wallthick)-gap-adj,-wallthick-gap-adj,
+                                    ((case_z)/2)-4-adj]) 
+                                        cube([wallthick+.25,wallthick+(2*adj),4.25]);
+                            }
+                            // left hook
+                            difference() {
+                                translate([-(2*wallthick)-gap-adj-.25,-wallthick-gap,
+                                    ((case_z)/2)-4]) 
+                                        cube([(2*wallthick)+.5,wallthick,8]);
+                                translate([-wallthick-gap-adj-.25,-wallthick-gap-adj,
+                                    ((case_z)/2)-4-adj]) 
+                                        cube([wallthick+.25,wallthick+(2*adj),4.25]);
+                            }
+                        }
+                        // top slots
+                        translate([(width*(1/5))-8.25-(wallthick+gap),-wallthick-gap-adj,
+                            case_z-floorthick-.25]) 
+                                cube([8.5,wallthick+2*adj,floorthick+.5]);
+                        translate([width-(width*(1/5))-(wallthick+gap)-.25,-wallthick-gap-adj,
+                            case_z-floorthick-.25]) 
+                                cube([8.5,wallthick+2*adj,floorthick+.5]);
+                        // bottom slots
+                        translate([(width*(1/5))-8.25-(wallthick+gap),-wallthick-gap-adj,-.25]) 
+                                cube([8.5,wallthick+2*adj,floorthick+.5]);
+                        translate([width-(width*(1/5))-(wallthick+gap)-.25,-wallthick-gap-adj,-.25]) 
+                                cube([8.5,wallthick+2*adj,floorthick+.5]);
+                    }
+                }
+                if(side == "front") {
+                    difference() {
+                        union() {
+                            translate([-gap,depth-2*(wallthick)-gap,-floorthick]) 
+                                cube([width-2*wallthick,wallthick,case_z+2*floorthick]);
+                            // right hook
+                            difference() {
+                                translate([width-(2*wallthick)-gap-adj,depth-2*(wallthick)-gap-adj,
+                                    ((case_z)/2)-4])
+                                        cube([(2*wallthick)+.5,wallthick,8]);
+                                translate([width-(2*wallthick)-gap-adj,
+                                    depth-2*(wallthick)-adj-gap-adj,((case_z)/2)-4-adj])
+                                        cube([wallthick+.25,wallthick+(2*adj),4.25]);
+                            }
+                            // left hook
+                            difference() {
+                                translate([-(2*wallthick)-gap-adj-.25,depth-2*(wallthick)-gap-adj,(
+                                    (case_z)/2)-4]) 
+                                        cube([(2*wallthick)+.5,wallthick,8]);
+                                translate([-wallthick-gap-adj-.25,depth-2*(wallthick)-adj-gap-adj,
+                                    ((case_z)/2)-4-adj]) 
+                                        cube([wallthick+.25,wallthick+(2*adj),4.25]);
+                            }
+                        }
+                        // top slots
+                        translate([(width*(1/5))-8.25-(wallthick+gap),depth-2*wallthick-gap-adj,
+                            case_z-floorthick-.25]) 
+                                cube([8.5,wallthick+2*adj,floorthick+.5]);
+                        translate([width-(width*(1/5))-(wallthick+gap)-.25,depth-2*wallthick-gap-adj,
+                            case_z-floorthick-.25]) 
+                                cube([8.5,wallthick+2*adj,floorthick+.5]);
+                        // bottom slots
+                        translate([(width*(1/5))-8.25-(wallthick+gap),depth-2*wallthick-gap-adj,-.25]) 
+                                cube([8.5,wallthick+2*adj,floorthick+.5]);
+                        translate([width-(width*(1/5))-(wallthick+gap)-.25,
+                            depth-2*wallthick-gap-adj,-.25]) cube([8.5,wallthick+2*adj,floorthick+.5]);
+                    }
+                }
+                if(side == "right") {
+                    difference() {
+                        translate([width-(2*wallthick)-gap,-(2*wallthick)-gap,-wallthick]) 
+                            cube([wallthick,depth+2*wallthick,case_z+(2*wallthick)]);
+                        translate([width-(2*wallthick)-gap-adj,-wallthick-gap-.25,
+                            ((case_z)/2)]) cube([wallthick+2*adj,wallthick+.5,8.5]);
+                        translate([width-(2*wallthick)-gap-adj,depth-2*(wallthick)-gap-.25,
+                            ((case_z)/2)])
+                                cube([wallthick+2*adj,wallthick+.5,8.5]);
+                    }
+                }
+                if(side == "left") {
+                    difference() {
+                        translate([-wallthick-gap,-(2*wallthick)-gap,-wallthick]) 
+                            cube([wallthick,depth+2*wallthick,case_z+(2*wallthick)]);
+                        translate([-wallthick-gap-adj,-wallthick-gap-.25,((case_z)/2)])
+                            cube([wallthick+2*adj,wallthick+.5,8.5]);
+                        translate([-wallthick-gap-adj,depth-2*(wallthick)-gap-.25,
+                            ((case_z)/2)])
+                                cube([wallthick+2*adj,wallthick+.5,8.5]);
+                    }
+                }
+            }
+            if(case_design == "tray" && case_style == "sides") {
+                if(side == "right") {
+                    difference() {
+                        union() {
+                            translate([width-wallthick-gap,-(2*wallthick)-gap,0]) 
+                                cube([sidethick,depth+2*wallthick,case_z+(2*wallthick)]);
+                            translate([width-gap-wallthick-1+adj,depth-2*(wallthick+gap)-.5,case_z+(2*wallthick)-2]) 
+                                cube([1,6,2]);
+                            translate([width-gap-wallthick-1+adj,-2*(wallthick+gap)+1.5,case_z+(2*wallthick)-2]) 
+                                cube([1,6,2]);
+                            // top rail
+                            translate([width-6.9-adj,-gap,case_z-floorthick-.5])
+                                cube([4,depth-2*(wallthick+gap),2]);
+                        }
+                        // right side bottom attachment holes          
+                        translate([width-2*(wallthick+gap)-sidethick-adj,wallthick+gap+10,
+                            ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                        if(depth >= 75) {                        
+                            translate([width-2*(wallthick+gap)-sidethick-adj,depth-wallthick-gap-10,
+                                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) 
+                                    cylinder(d=3, h=10+sidethick+(2*adj));
+                        }
+                        else {
+                            translate([width-2*(wallthick+gap)-sidethick-adj,wallthick+gap+40,
+                                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) 
+                                    cylinder(d=3, h=10+sidethick+(2*adj));
+                        }
+                    }
+                }
+                if(side == "left") {
+                    difference() {
+                        union() {
+                            translate([-wallthick-gap-sidethick,-(2*wallthick)-gap,0]) 
+                                cube([sidethick,depth+2*wallthick,case_z+(2*wallthick)]);
+                            translate([-gap-wallthick-adj,depth-2*(wallthick+gap)-.5,case_z+(2*wallthick)-2])
+                                cube([1,6,2]);
+                            translate([-gap-wallthick-adj,-2*(wallthick+gap)+1.5,case_z+(2*wallthick)-2]) 
+                                cube([1,6,2]);
+                            // top rail
+                            translate([-wallthick-gap-adj,-gap,case_z-floorthick-.5]) 
+                                cube([4,depth-2*(wallthick+gap),2]);
+                        }
+                        // left side bottom attachment holes
+                        translate([-wallthick-gap-adj-5,wallthick+gap+10,
+                            ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                        if(depth >= 75) {
+                            translate([-wallthick-gap-adj-6,depth-wallthick-gap-10,
+                                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) 
+                                    cylinder(d=3, h=10+sidethick+(2*adj));
+                        }
+                        else {
+                            translate([-wallthick-gap-adj-6,wallthick+gap+40,
+                                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) 
+                                    cylinder(d=3, h=10+sidethick+(2*adj));
+                        }
+                    }
+                }
+            }
+            if(case_design == "tray" && case_style == "vu5") {
+                cheight = case_z+90;
+                vesa = 75;
+                vu_holder(case_style,side,vesa,cheight);
+            }
+            if(case_design == "tray" && case_style == "vu7") {
+                cheight = case_z+122;
+                vesa = 100;
+                vu_holder(case_style,side,vesa,cheight);
+            }         
+            // additive accessories
+            if(accessory_name != "none") {
+                for (i=[1:15:len(accessory_data[a[0]])-1]) {
+                    class = accessory_data[a[0]][i];
+                    type = accessory_data[a[0]][i+1];
+                    loc_x = accessory_data[a[0]][i+2];
+                    loc_y = accessory_data[a[0]][i+3];
+                    loc_z = accessory_data[a[0]][i+4];
+                    face = accessory_data[a[0]][i+5];
+                    rotation = accessory_data[a[0]][i+6];
+                    parametric = accessory_data[a[0]][i+7];
+                    size_x = accessory_data[a[0]][i+8];
+                    size_y = accessory_data[a[0]][i+9];
+                    size_z = accessory_data[a[0]][i+10];
+                    data_1 = accessory_data[a[0]][i+11];
+                    data_2 = accessory_data[a[0]][i+12];
+                    data_3 = accessory_data[a[0]][i+13];
+                    data_4 = accessory_data[a[0]][i+14];
+                    
+                    if (class == "add1" && face == side) {
+                        parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                    }
+                }
+            }
+        }
+        if(accessory_name != "none") {
+            for (i=[1:15:len(accessory_data[a[0]])-1]) {
+                class = accessory_data[a[0]][i];
+                type = accessory_data[a[0]][i+1];
+                loc_x = accessory_data[a[0]][i+2];
+                loc_y = accessory_data[a[0]][i+3];
+                loc_z = accessory_data[a[0]][i+4];
+                face = accessory_data[a[0]][i+5];
+                rotation = accessory_data[a[0]][i+6];
+                parametric = accessory_data[a[0]][i+7];
+                size_x = accessory_data[a[0]][i+8];
+                size_y = accessory_data[a[0]][i+9];
+                size_z = accessory_data[a[0]][i+10];
+                data_1 = accessory_data[a[0]][i+11];
+                data_2 = accessory_data[a[0]][i+12];
+                data_3 = accessory_data[a[0]][i+13];
+                data_4 = accessory_data[a[0]][i+14];
+                
+                if ((class == "sub" && face == side) || class == "suball") {
+                    if(accessory_highlight == false) {
+                        parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                    }
+                    else {
+                        #parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                    }
+                }
+                // create openings for additive 
+                if ((class == "sub" && face == "bottom") || class == "suball") {
+                    if(accessory_highlight == false) {
+                        parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                    }
+                    else {
+                        #parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                    }
+                }
+                // create openings for additive 
+                if (class == "add2" && face == "bottom" && type == "standoff") {
+                    parametric_move_sub("round",loc_x,loc_y,-.1,face,rotation,parametric,
+                        6.5,size_y,floorthick+1,data_1,data_2,data_3,data_4);
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "uart_holder") {
+                    if(accessory_highlight == false) {
+                        parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
+                            0,0,0,data_1,data_2,data_3,data_4);
+                    }
+                    else {
+                        #parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
+                            0,0,0,data_1,data_2,data_3,data_4);
+                    }
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "hc4_oled_holder") {
+                    parametric_move_sub("rectangle",loc_x+1,loc_y+1.75,loc_z+25.5,face,rotation,
+                        parametric,26.5,wallthick+gap+4,15,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "access_port") {
+                    if(data_3 == "landscape") {
+                        parametric_move_sub("rectangle",loc_x+6,loc_y-.5,loc_z-adj,face,rotation,
+                            parametric,size_x-17,size_y-1,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                        parametric_move_sub("rectangle",loc_x+size_x-12.5,loc_y+(size_y/2)-6,loc_z-adj,face,rotation,
+                            parametric,5.5,10.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
+                    }
+                    else {
+                        parametric_move_sub("rectangle",loc_x+.5,loc_y+5.75,loc_z-adj,face,rotation,parametric,
+                            size_x-1,size_y-17,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                        parametric_move_sub("rectangle",loc_x+(size_x/2)-5,loc_y+size_y-12.5,loc_z-adj,face,rotation,
+                            parametric,10.5,5.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]); 
+                    }
+                }
+                if ((class == "model") && face == "bottom" && type == "h2_netcard") {
+                    parametric_move_sub("rectangle",loc_x+25,loc_y-6,loc_z-14,face,rotation,
+                        parametric,68.5,wallthick+3,14.5,data_1,data_2,data_3,[1,1,1,1]);
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "button") {
+                    if(data_3 == "recess") {
+                    parametric_move_sub("sphere",loc_x,loc_y,loc_z,face,rotation,
+                        parametric,size_x-1,size_y,size_z,data_1,data_2,data_3,0);
+                    }
+                    if(data_3 == "cutout") {
+                        parametric_move_sub("rectangle",loc_x+10,loc_y+4,loc_z-adj,face,rotation,
+                            parametric,size_x+2,size_y+1,size_z+2*adj,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                    }
+                }
+            }
+        }
+        // sbc openings
+        if(sbc_highlight == true) {
+            #translate([pcb_loc_x ,pcb_loc_y,bottom_height-pcb_z+pcb_loc_z-adj]) sbc(sbc_model,"default",0,"default","default",true);
+        }
+        else {
+            translate([pcb_loc_x ,pcb_loc_y,bottom_height-pcb_z+pcb_loc_z-adj]) sbc(sbc_model,"default",0,"default","default",true);
+        }
+    }
+    if(accessory_name != "none") {
+        for (i=[1:15:len(accessory_data[a[0]])-1]) {
+            class = accessory_data[a[0]][i];
+            type = accessory_data[a[0]][i+1];
+            loc_x = accessory_data[a[0]][i+2];
+            loc_y = accessory_data[a[0]][i+3];
+            loc_z = accessory_data[a[0]][i+4];
+            face = accessory_data[a[0]][i+5];
+            rotation = accessory_data[a[0]][i+6];
+            parametric = accessory_data[a[0]][i+7];
+            size_x = accessory_data[a[0]][i+8];
+            size_y = accessory_data[a[0]][i+9];
+            size_z = accessory_data[a[0]][i+10];
+            data_1 = accessory_data[a[0]][i+11];
+            data_2 = accessory_data[a[0]][i+12];
+            data_3 = accessory_data[a[0]][i+13];
+            data_4 = accessory_data[a[0]][i+14];
+            
+            if (class == "add2" && face == side) {
+                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                    size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+            }
+        }
+    }
+}
diff --git a/mod/case_top.scad b/mod/case_top.scad
new file mode 100644
index 0000000..cc06b80
--- /dev/null
+++ b/mod/case_top.scad
@@ -0,0 +1,595 @@
+
+
+// case top
+module case_top(case_design) {
+
+    difference() {
+        union() {
+            difference() {
+                union() {
+                    if(case_design == "shell") {
+                        difference() {
+                            translate([(width/2)-wallthick-gap,
+                                (depth/2)-wallthick-gap,bottom_height+(top_height/2)]) 
+                                    cube_fillet_inside([width,depth,top_height], 
+                                        vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                            top=[fillet,fillet,fillet,fillet,fillet], 
+                                                bottom=[0,0,0,0], $fn=90);
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,
+                                bottom_height+(top_height/2)-floorthick]) 
+                                    cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),top_height], 
+                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
+                                            top=[fillet,fillet,fillet,fillet,fillet],
+                                                bottom=[0,0,0,0], $fn=90);
+                        }
+                    }
+                    if(case_design == "panel") {
+                        union() {
+                           translate([-gap,-gap,case_z-floorthick]) 
+                                cube([width-(2*wallthick),depth-(2*wallthick),floorthick]);
+                            translate([(width*(1/5))-8-(wallthick+gap),depth-(2*wallthick)-gap-adj,
+                                case_z-floorthick]) 
+                                    cube([8,wallthick+2*adj,floorthick]);
+                            translate([width-(width*(1/5))-(wallthick+gap),depth-(2*wallthick)-gap-adj,
+                                case_z-floorthick]) 
+                                    cube([8,wallthick+2*adj,floorthick]);                   
+                            translate([(width*(1/5))-8-(wallthick+gap),-wallthick-gap+adj,
+                                case_z-floorthick]) 
+                                    cube([8,wallthick+2*adj,floorthick]);
+                            translate([width-(width*(1/5))-(wallthick+gap),-wallthick-gap+adj,
+                                case_z-floorthick]) 
+                                    cube([8,wallthick+2*adj,floorthick]);
+                        }                
+                    }
+                    if(case_design == "stacked") {
+                        translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,
+                            case_z-(floorthick/2)]) 
+                             cube_fillet_inside([width-(2*wallthick),depth-(2*wallthick),floorthick], 
+                                 vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                     top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                        }
+                    if(case_design == "tray" && (case_style == "vu5" || case_style == "vu7" || case_style == "sides")) {
+                        translate([-wallthick-gap+.5,-wallthick-gap,case_z])
+                            cube([width-1,depth,floorthick]);
+                        translate([-wallthick-gap+.5,-wallthick-gap,
+                            case_z-floorthick+adj]) cube([width-1,wallthick,wallthick]);
+                    }
+                    if(case_design == "tray" && case_style == "none") {
+                        difference() {
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z/2]) 
+                                cube_fillet_inside([width+2*wallthick+1,depth,case_z], 
+                                    vertical=[0,0,0,0], top=[0,fillet,0,fillet,fillet], 
+                                        bottom=[0,0,0,0], $fn=90);
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,(case_z/2)-floorthick+.25]) 
+                                cube_fillet_inside([width+1,depth+(wallthick*2),case_z], 
+                                    vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
+                                        top=[0,0,0,0],bottom=[0,0,0,0], $fn=90);
+                            // right side bottom attachment hole          
+                            translate([width-2*(wallthick+gap)-sidethick-adj,wallthick+gap+10,
+                                floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                            // left side bottom attachment hole
+                            translate([-2*(wallthick+gap)-sidethick-adj,wallthick+gap+10,
+                                floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                            if(depth >= 75 && sbc_model != "visionfive2" && sbc_model != "visionfive2q"&& sbc_model != "rock5b-v1.42" && sbc_model != "rock5bq-v1.42" && sbc_model != "rock5b-v1.3") {
+                               translate([width-2*(wallthick+gap)-sidethick-adj,depth-wallthick-gap-10,
+                                    floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                                translate([-wallthick-gap-adj-6,depth-wallthick-gap-10,
+                                    floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                            }
+                            else {
+                                if(sbc_model == "visionfive2" || sbc_model == "visionfive2q" || sbc_model == "rock5b-v1.42" ||  sbc_model == "rock5bq-v1.42" || sbc_model == "rock5b-v1.3") {
+                                   translate([width-2*(wallthick+gap)-sidethick-adj,wallthick+gap+58,
+                                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                                    translate([-wallthick-gap-adj-6,wallthick+gap+58,
+                                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                                }
+                                else {
+                                   translate([width-2*(wallthick+gap)-sidethick-adj,wallthick+gap+40,
+                                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                                    translate([-wallthick-gap-adj-6,wallthick+gap+40,
+                                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adj));
+                                }
+                            }
+                        }
+                    }
+                    if(case_design == "round") {
+                        difference() {
+                            translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-lip/2]) rotate([0,0,30]) 
+                                cylinder_fillet_inside(h=top_height+lip, r=case_diameter/2, 
+                                    top=fillet, bottom=0, $fn=case_fn, fillet_fn=case_ffn, center=true);
+                            translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-floorthick-lip/2]) rotate([0,0,30]) 
+                                cylinder_fillet_inside(h=top_height+lip, r=(case_diameter/2)-wallthick, 
+                                    top=fillet-1, bottom=0, $fn=case_fn, fillet_fn=case_ffn, center=true);
+                            translate([pcb_width/2,pcb_depth/2,bottom_height-adj-lip/2]) rotate([0,0,30]) 
+                                cylinder_fillet_inside(h=lip+2*adj, r=(case_diameter/2)-wallthick/2+tol/2, 
+                                    top=fillet-1, bottom=0, $fn=case_fn, fillet_fn=case_ffn, center=true);
+                            // io cutout
+                            if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
+                                sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
+                                    sbc_model != "rpizero" && sbc_model != "rpizero2w") {
+                                translate([width,(depth/2)-wallthick-gap,bottom_height-lip+top_height/2-floorthick])
+                                    cube_fillet_inside([18,depth-2*(wallthick+gap)-1,top_height+lip+2], 
+                                        vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                            }
+                            else {
+                                translate([(width/2)-wallthick-gap,-20,bottom_height-lip+top_height/2-floorthick])
+                                    cube_fillet_inside([width-2*(wallthick+gap)-1,40,top_height+lip+2], 
+                                        vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                            }
+                        }
+                        if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
+                            sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
+                                sbc_model != "rpizero" && sbc_model != "rpizero2w") {
+                            translate([width-2*wallthick-gap-.95,depth/2-wallthick-gap-(depth-2*(floorthick+gap))/2,
+                                bottom_height]) cube([wallthick-adj,depth-2*(floorthick+gap),top_height+adj]);
+                        }
+                        else {
+                            translate([-.95,depth/2-2*wallthick-gap-(depth-2*(floorthick+gap))/2,
+                                bottom_height]) cube([width-2*(floorthick+gap),wallthick-adj,top_height+adj]);
+                        }
+                    }
+                    if(case_design == "hex") {
+                        if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
+                            sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
+                                sbc_model != "rpizero" && sbc_model != "rpizero2w") {
+                            difference() {
+                                translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-lip/2]) rotate([0,0,30]) 
+                                    cylinder_fillet_inside(h=top_height+lip, r=case_diameter/2, 
+                                        top=fillet, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
+                                translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-floorthick-lip/2]) rotate([0,0,30]) 
+                                    cylinder_fillet_inside(h=top_height+lip, r=(case_diameter/2)-wallthick, 
+                                        top=fillet-1, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
+                                translate([pcb_width/2,pcb_depth/2,bottom_height-adj-lip/2]) rotate([0,0,30]) 
+                                    cylinder_fillet_inside(h=lip+2*adj, r=(case_diameter/2)-wallthick/2+tol/2, 
+                                        top=fillet-1, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
+                            // io cutout
+                            translate([width,(depth/2)-wallthick-gap,bottom_height-lip+top_height/2-floorthick])
+                                cube_fillet_inside([18,depth-2*(wallthick+gap)-1,top_height+lip+2], 
+                                    vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                            }
+                        }
+                        else {
+                            difference() {
+                                translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-lip/2]) rotate([0,0,0]) 
+                                    cylinder_fillet_inside(h=top_height+lip, r=hex_diameter/2, 
+                                        top=fillet, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
+                                translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-floorthick-lip/2])
+                                    rotate([0,0,0]) cylinder_fillet_inside(h=top_height+lip, r=(hex_diameter/2)-wallthick, 
+                                        top=fillet-1, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
+                                translate([pcb_width/2,pcb_depth/2,bottom_height-adj-lip/2]) rotate([0,0,0]) 
+                                    cylinder_fillet_inside(h=lip+2*adj, r=(hex_diameter/2)-wallthick/2+tol/2, 
+                                        top=fillet-1, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
+                                // io cutout
+                                translate([(width/2)-wallthick-gap,-23,bottom_height-lip+top_height/2-floorthick])
+                                    cube_fillet_inside([width-2*(wallthick+gap),40,top_height+lip+2], 
+                                        vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
+                            }
+                        }
+                        if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
+                            sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" &&
+                                sbc_model != "rpizero" && sbc_model != "rpizero2w") {
+                            translate([width-2*wallthick-gap-.95,depth/2-wallthick-gap-(depth-2*(floorthick+gap))/2,
+                                bottom_height]) cube([wallthick-adj,depth-2*(floorthick+gap),top_height+adj]);
+                        }
+                        else {
+                            translate([0,depth/2-2.25*(wallthick+gap)-(depth-2*(floorthick+gap))/2,
+                                bottom_height]) cube([width-2*(floorthick+gap),wallthick-adj,top_height+adj]);
+                        }
+                    }
+                    if(case_design == "snap") {
+                        translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,floorthick*1.5+case_z])
+                            cube_fillet_inside([width,depth,floorthick], 
+                                vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                    top=[0,0,0,0],bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                        difference() {
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-adj]) 
+                                cube_fillet_inside([width-2*wallthick-tol,depth-2*wallthick-tol,2*floorthick+1.5], 
+                                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                        top=[0,0,0,0],bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                            
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-adj]) 
+                                cube_fillet_inside([width-(3*wallthick),depth-(3*wallthick),2*floorthick+1.5+adj], 
+                                    vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],top=[0,0,0,0],
+                                        bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
+                        }
+                        // snap top outdent
+                        difference() {
+                            translate([-wallthick-gap+1.25+tol,(depth/2)-((depth*.75)/2)+2.5-gap-wallthick,case_z-.5]) 
+                                rotate([0,45,0]) cube([4,(depth*.75)-5,4]);
+                            translate([-wallthick-gap+3,(depth/2)-((depth*.75)/2)+1.25-gap-wallthick,case_z+floorthick-5.75]) 
+                                rotate([0,0,0]) cube([6,(depth*.75)-2,6]);
+                        }
+                        difference() {
+                            translate([width-wallthick-gap-6.8-tol,(depth/2)-((depth*.75)/2)+2.5-gap-wallthick,case_z-.5])
+                                rotate([0,45,0]) cube([4,(depth*.75)-5,4]);
+                            translate([width-wallthick-gap-8.5,(depth/2)-((depth*.75)/2)+1.25-gap-wallthick,case_z+floorthick-5.75])
+                                rotate([0,0,0]) cube([6,(depth*.75)-2,6]);
+                        }
+                    }
+                    if(case_design == "fitted") {
+                        difference() {
+                            translate([(width/2)-wallthick-gap,
+                                (depth/2)-wallthick-gap,case_z+floorthick/2-(lip)/2]) 
+                                    cube_fillet_inside([width,depth,lip+floorthick], 
+                                        vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                                            top=[fillet,fillet,fillet,fillet,fillet], 
+                                                bottom=[0,0,0,0], $fn=90);
+                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-floorthick-1]) 
+                                    cube_fillet_inside([width-wallthick+tol,depth-wallthick+tol,lip+floorthick], 
+                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
+                                            top=[fillet,fillet,fillet,fillet,fillet],
+                                                bottom=[0,0,0,0], $fn=90);
+                        }
+                    }
+                    if(accessory_name != "none") {
+                        for (i=[1:15:len(accessory_data[a[0]])-1]) {
+                            class = accessory_data[a[0]][i];
+                            type = accessory_data[a[0]][i+1];
+                            loc_x = accessory_data[a[0]][i+2];
+                            loc_y = accessory_data[a[0]][i+3];
+                            loc_z = accessory_data[a[0]][i+4];
+                            face = accessory_data[a[0]][i+5];
+                            rotation = accessory_data[a[0]][i+6];
+                            parametric = accessory_data[a[0]][i+7];
+                            size_x = accessory_data[a[0]][i+8];
+                            size_y = accessory_data[a[0]][i+9];
+                            size_z = accessory_data[a[0]][i+10];
+                            data_1 = accessory_data[a[0]][i+11];
+                            data_2 = accessory_data[a[0]][i+12];
+                            data_3 = accessory_data[a[0]][i+13];
+                            data_4 = accessory_data[a[0]][i+14];
+                            
+                            if (class == "add1" && face == "top") {
+                                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,
+                                    parametric,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                            }
+                        }
+                    }                  
+                }
+                // pcb standoff holes
+                if(sbc_top_standoffs == true && top_standoff[5] != 4) {
+                    for (i=[1:11:len(sbc_data[s[0]])-2]) {
+                        class = sbc_data[s[0]][i+1];
+                        type = sbc_data[s[0]][i+2];
+                        id = sbc_data[s[0]][i+3];
+                        pcb_hole_x = sbc_data[s[0]][i+4]+pcb_loc_x;
+                        pcb_hole_y = sbc_data[s[0]][i+5]+pcb_loc_y;
+                        pcb_hole_z = sbc_data[s[0]][i+6];
+                        pcb_hole_size = sbc_data[s[0]][i+9][0];                        
+                        pcb_hole_pos = sbc_data[s[0]][i+10][4];
+
+                        if (class == "pcbhole" && id == pcb_id && (pcb_hole_pos == "left_rear" || pcb_hole_pos == "left_front" || pcb_hole_pos == "right_rear" || pcb_hole_pos == "right_front")) {
+                            #translate([pcb_hole_x,pcb_hole_y,top_height+1]) cylinder(d=6.5, h=top_height);
+                        }
+                    }
+                }
+                // extended standoff holes
+                if(case_ext_standoffs == true) {
+                    // right-rear standoff
+                    if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
+                        translate([width-(2*(wallthick+gap))-(c_fillet/2),(c_fillet/2),top_height+1]) 
+                            cylinder(d=6.5, h=top_height);
+                    }
+                    // right-front standoff    
+                    if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) || width-pcb_loc_x-pcb_width >= 10) {
+                        translate([width-(c_fillet/2)-(2*(wallthick+gap)),
+                            depth-(c_fillet/2)-(2*(wallthick+gap)),top_height+1]) cylinder(d=6.5, h=top_height);
+                    }
+                    // left-rear standoff
+                    if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
+                        translate([(c_fillet/2),(c_fillet/2),top_height+1]) cylinder(d=6.5, h=top_height);
+                    }              
+                    // left-front standoff
+                    if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
+                        translate([+(c_fillet/2),depth-(c_fillet/2)-(2*(wallthick+gap)),
+                            top_height+1]) cylinder(d=6.5, h=top_height+1);
+                    }
+                }
+            }           
+            // pcb standoffs
+
+            if(sbc_top_standoffs == true) {
+                    for (i=[1:11:len(sbc_data[s[0]])-2]) {
+                        class = sbc_data[s[0]][i+1];
+                        type = sbc_data[s[0]][i+2];
+                        id = sbc_data[s[0]][i+3];
+                        pcb_hole_x = sbc_data[s[0]][i+4]+pcb_loc_x;
+                        pcb_hole_y = sbc_data[s[0]][i+5]+pcb_loc_y;
+                        pcb_hole_z = sbc_data[s[0]][i+6];
+                        pcb_hole_size = sbc_data[s[0]][i+9][0];                        
+                        pcb_hole_pos = sbc_data[s[0]][i+10][4];
+                    if(class == "pcbhole" && id == pcb_id && (pcb_hole_pos == "left_rear" || pcb_hole_pos == "left_front" || pcb_hole_pos == "right_rear" || pcb_hole_pos == "right_front")) {
+                        if (pcb_hole_pos == "left_rear") {
+                            normal_standoff = [top_standoff[0],
+                                                top_height+pcb_loc_z+top_rear_left,
+                                                top_standoff[2],
+                                                top_standoff[3],
+                                                top_standoff[4],
+                                                top_standoff[5],
+                                                top_standoff[6],
+                                                top_standoff[7],
+                                                top_standoff[8],
+                                                top_standoff[9],
+                                                top_standoff[10]];
+                            translate([pcb_hole_x,pcb_hole_y,case_z]) standoff(normal_standoff);
+                        }
+                        if (pcb_hole_pos == "left_front") {
+                            normal_standoff = [top_standoff[0],
+                                                top_height+pcb_loc_z+top_front_left,
+                                                top_standoff[2],
+                                                top_standoff[3],
+                                                top_standoff[4],
+                                                top_standoff[5],
+                                                top_standoff[6],
+                                                top_standoff[7],
+                                                top_standoff[8],
+                                                top_standoff[9],
+                                                top_standoff[10]];
+                            translate([pcb_hole_x,pcb_hole_y,case_z]) standoff(normal_standoff);
+                        }
+                        if (pcb_hole_pos == "right_rear") {
+                            normal_standoff = [top_standoff[0],
+                                                top_height+pcb_loc_z+top_rear_right,
+                                                top_standoff[2],
+                                                top_standoff[3],
+                                                top_standoff[4],
+                                                top_standoff[5],
+                                                top_standoff[6],
+                                                top_standoff[7],
+                                                top_standoff[8],
+                                                top_standoff[9],
+                                                top_standoff[10]];
+                            translate([pcb_hole_x,pcb_hole_y,case_z]) standoff(normal_standoff);
+                        }
+                        if (pcb_hole_pos == "right_front") {
+                            normal_standoff = [top_standoff[0],
+                                                top_height+pcb_loc_z+top_front_right,
+                                                top_standoff[2],
+                                                top_standoff[3],
+                                                top_standoff[4],
+                                                top_standoff[5],
+                                                top_standoff[6],
+                                                top_standoff[7],
+                                                top_standoff[8],
+                                                top_standoff[9],
+                                                top_standoff[10]];
+                            translate([pcb_hole_x,pcb_hole_y,case_z]) standoff(normal_standoff);
+                        }
+                    }                    
+                }
+            }
+            // extended standoffs
+            if(case_ext_standoffs == true) {
+                // right-rear standoff
+                if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
+                    translate([width-(2*(wallthick+gap))-(c_fillet/2),(c_fillet/2),case_z]) 
+                        standoff(top_ext_standoff);
+                }
+                // right-front standoff    
+                if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) 
+                    || width-pcb_loc_x-pcb_width >= 10) {
+                        translate([width-(c_fillet/2)-(2*(wallthick+gap)),
+                            depth-(c_fillet/2)-(2*(wallthick+gap)),case_z]) standoff(top_ext_standoff);
+                }
+                // left-rear standoff
+                if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
+                    translate([(c_fillet/2),(c_fillet/2),case_z]) standoff(top_ext_standoff);
+                }              
+                // left-front standoff
+                if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
+                    translate([(c_fillet/2),depth-(c_fillet/2)-(2*(wallthick+gap)),
+                        case_z]) standoff(top_ext_standoff);                
+                }
+            }
+            // standoff sidewall support
+            if(sidewall_support == true && sbc_top_standoffs == true) {
+                if(pcb_width/pcb_depth >= 1.4) {
+                    for (i=[1:11:len(sbc_data[s[0]])-2]) {
+                        class = sbc_data[s[0]][i+1];
+                        type = sbc_data[s[0]][i+2];
+                        id = sbc_data[s[0]][i+3];
+                        pcb_hole_x = sbc_data[s[0]][i+4]+pcb_loc_x;
+                        pcb_hole_y = sbc_data[s[0]][i+5]+pcb_loc_y;
+                        pcb_hole_z = sbc_data[s[0]][i+6];
+                        pcb_hole_size = sbc_data[s[0]][i+9][0];                        
+                        pcb_hole_pos = sbc_data[s[0]][i+10][4];
+
+                        if(pcb_hole_x!=0 && pcb_hole_y!=0) {
+                            if (pcb_hole_pos == "left_rear") {
+                                translate([pcb_hole_x-1, pcb_hole_y-(top_standoff[0]/2)-(gap-adj)-1.4,
+                                    case_z-top_height-top_rear_left]) cube([2,gap+1.6,top_height+top_rear_left]);
+                            }
+                            if (pcb_hole_pos == "left_front") {
+                                translate([pcb_hole_x-1, pcb_hole_y+(top_standoff[0]/2)-.6+adj,case_z-top_height-top_front_left]) 
+                                    cube([2,gap+1.6,top_height+top_front_left]);
+                            }
+                            if (pcb_hole_pos == "right_rear") {
+                                translate([pcb_hole_x-1, pcb_hole_y-(top_standoff[0]/2)-(gap-adj)-1.4,
+                                    case_z-top_height-top_rear_right]) cube([2,gap+1.6,top_height+top_rear_right]);
+                            }
+                            if (pcb_hole_pos == "right_front") {
+                                translate([pcb_hole_x-1, pcb_hole_y+(top_standoff[0]/2)-.6+adj,case_z-top_height-top_front_right]) 
+                                    cube([2,gap+1.6,top_height+top_front_right]);
+                            }
+                        }
+                    }
+                }
+                else {
+                    for (i=[1:11:len(sbc_data[s[0]])-2]) {
+                        class = sbc_data[s[0]][i+1];
+                        type = sbc_data[s[0]][i+2];
+                        id = sbc_data[s[0]][i+3];
+                        pcb_hole_x = sbc_data[s[0]][i+4]+pcb_loc_x;
+                        pcb_hole_y = sbc_data[s[0]][i+5]+pcb_loc_y;
+                        pcb_hole_z = sbc_data[s[0]][i+6];
+                        pcb_hole_size = sbc_data[s[0]][i+9][0];                        
+                        pcb_hole_pos = sbc_data[s[0]][i+10][4];
+
+                        if(pcb_hole_x!=0 && pcb_hole_y!=0) {
+                            if (i == 7 && sbc_model != "n2l") {
+                                translate([pcb_hole_x-(top_standoff[0]/2)-gap-adj-1,pcb_hole_y-1,
+                                    bottom_height-top_rear_left]) cube([gap+adj+1.6,2,top_height+top_rear_left]);
+                            }
+                            if (pcb_hole_pos == "left_rear" && sbc_model == "n2l") {
+                                translate([pcb_hole_x-1, pcb_hole_y-(top_standoff[0]/2)-(gap-adj)-1.4,
+                                    case_z-top_height-top_rear_left]) cube([2,gap+1.6,top_height+top_rear_left]);
+                                
+                            }
+                            if (pcb_hole_pos == "left_front" && sbc_model != "n2l") {
+                                translate([pcb_hole_x-(top_standoff[0]/2)-gap-adj-1,pcb_hole_y-1,
+                                    bottom_height-top_front_left]) cube([gap+adj+1.6,2,top_height+top_front_left]);
+                            }
+                            if (pcb_hole_pos == "left_front" && sbc_model == "n2l") {
+                                translate([pcb_hole_x-1, pcb_hole_y+(top_standoff[0]/2)-.6+adj,case_z-top_height-top_front_left]) 
+                                    cube([2,gap+1.6,top_height+top_front_left]);
+                                
+                            }
+                            if (pcb_hole_pos == "right_rear") {
+                                translate([pcb_hole_x+(top_standoff[0]/2)-adj-.45,pcb_hole_y-1,
+                                    bottom_height-top_rear_right]) cube([gap+adj+1.6,2,top_height+top_rear_right]);
+                            }
+                            if (pcb_hole_pos == "right_front") {
+                                translate([pcb_hole_x+(top_standoff[0]/2)-adj-.45,pcb_hole_y-1,
+                                    bottom_height-top_front_right]) cube([gap+adj+1.6,2,top_height+top_front_right]);
+                            }
+                        }
+                    }
+                }
+            }
+            // extended standoff sidewall support
+            if(case_ext_standoffs == true && sidewall_support == true) {
+                // right-rear standoff
+                if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
+                    translate([width-(2*(wallthick+gap))-(c_fillet/2)+(top_ext_standoff[0]/2)-.6,
+                        (c_fillet/2)-1,bottom_height]) cube([gap+adj+2,2,top_height]);
+                }
+                // right-front standoff    
+                if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) 
+                    || width-pcb_loc_x-pcb_width >= 10) {
+                        translate([width-(2*(wallthick+gap))-(c_fillet/2)+(top_ext_standoff[0]/2)-.6,
+                            depth-(c_fillet/2)-(2*(wallthick+gap))-1,bottom_height])
+                                cube([gap+adj+2,2,top_height]);
+                }
+                // left-rear standoff
+                if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
+                    translate([(c_fillet/2)-(wallthick+gap)-(top_ext_standoff[0]/2)+.6,(c_fillet/2)-1,
+                        bottom_height]) cube([gap+adj+2,2,top_height]);
+                }              
+                // left-front standoff
+                if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
+                    translate([(c_fillet/2)-(wallthick+gap)-(top_ext_standoff[0]/2)+.6,
+                        depth-(c_fillet/2)-(2*(wallthick+gap))-1, bottom_height]) 
+                            cube([gap+adj+2,2,top_height]);
+                }
+            }
+        }
+        // subtractive accessories
+        if(accessory_name != "none") {
+            for (i=[1:15:len(accessory_data[a[0]])-1]) {
+                class = accessory_data[a[0]][i];
+                type = accessory_data[a[0]][i+1];
+                loc_x = accessory_data[a[0]][i+2];
+                loc_y = accessory_data[a[0]][i+3];
+                loc_z = accessory_data[a[0]][i+4];
+                face = accessory_data[a[0]][i+5];
+                rotation = accessory_data[a[0]][i+6];
+                parametric = accessory_data[a[0]][i+7];
+                size_x = accessory_data[a[0]][i+8];
+                size_y = accessory_data[a[0]][i+9];
+                size_z = accessory_data[a[0]][i+10];
+                data_1 = accessory_data[a[0]][i+11];
+                data_2 = accessory_data[a[0]][i+12];
+                data_3 = accessory_data[a[0]][i+13];
+                data_4 = accessory_data[a[0]][i+14];
+                
+                if ((class == "sub" && face == "top") || class == "suball") {
+                    if(accessory_highlight == false) {
+                        parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,
+                            parametric,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                    }
+                    else {
+                        #parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,
+                            parametric,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+                    }
+                }
+                // create openings for additive 
+                if (class == "add2" && face == "top" && type == "standoff") {
+                    parametric_move_sub("round",loc_x,loc_y,loc_z,face,rotation,parametric,
+                        6.5,size_y,floorthick+1,data_1,data_2,data_3,data_4);
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "uart_holder") {
+                    if(accessory_highlight == false) {
+                        parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
+                            0,0,0,data_1,data_2,data_3,data_4);
+                    }
+                    else {
+                        #parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
+                            0,0,0,data_1,data_2,data_3,data_4);
+                    }
+                }
+                if ((class == "add1" || class == "add2") && face == "bottom" && type == "hc4_oled_holder") {
+                    parametric_move_sub("rectangle",loc_x+1,loc_y+1.75,loc_z+26,face,rotation,
+                        parametric,26.5,wallthick+gap+4,14.5,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                }
+                if ((class == "add1" || class == "add2") && face == "top" && type == "button") {
+                    if(data_3 == "recess") {
+                        parametric_move_sub("sphere",loc_x,loc_y,loc_z,face,rotation,
+                            parametric,size_x-1,size_y,size_z,data_1,data_2,data_3,0);
+                    }
+                    if(data_3 == "cutout") {
+                        parametric_move_sub("rectangle",loc_x+10,loc_y+4,loc_z-adj,face,rotation,
+                            parametric,size_x+2,size_y+1,size_z+2*adj,data_1,data_2,data_3,[.1,.1,.1,.1]);
+                    }
+                }
+                if (class == "model" && face == "bottom" && type == "hk_boom" && 
+                    rotation[0] == 90 && rotation[1] == 0 && rotation[2] == 0) {
+                        parametric_move_sub("round",loc_x+11,loc_y-4,loc_z,face,[0,0,0],
+                            parametric,5,size_y,80,data_1,data_2,data_3,data_4);
+                        parametric_move_sub("slot",loc_x+37.5,loc_y-4.75,loc_z,face,[0,0,0],
+                            parametric,6,14,80,data_1,data_2,data_3,data_4);
+                }
+            }
+        }            
+        // sbc openings
+        if(sbc_highlight == true) {
+            #translate([pcb_loc_x ,pcb_loc_y,bottom_height-pcb_z+pcb_loc_z-adj]) sbc(sbc_model,"default",0,"default","default",true);
+        }
+        else {
+            translate([pcb_loc_x ,pcb_loc_y,bottom_height-pcb_z+pcb_loc_z-adj]) sbc(sbc_model,"default",0,"default","default",true);
+        }
+        // clean fillets
+        if(case_design == "shell") {
+            translate(([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,
+                bottom_height+(top_height/2)]) ) 
+                    cube_negative_fillet([width,depth,top_height], radius=-1,
+                        vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
+                            top=[fillet,fillet,fillet,fillet,fillet], 
+                                bottom=[0,0,0,0], $fn=90);
+        }
+    }
+    // additive accessories
+    if(accessory_name != "none") {
+        for (i=[1:15:len(accessory_data[a[0]])-1]) {
+            class = accessory_data[a[0]][i];
+            type = accessory_data[a[0]][i+1];
+            loc_x = accessory_data[a[0]][i+2];
+            loc_y = accessory_data[a[0]][i+3];
+            loc_z = accessory_data[a[0]][i+4];
+            face = accessory_data[a[0]][i+5];
+            rotation = accessory_data[a[0]][i+6];
+            parametric = accessory_data[a[0]][i+7];
+            size_x = accessory_data[a[0]][i+8];
+            size_y = accessory_data[a[0]][i+9];
+            size_z = accessory_data[a[0]][i+10];
+            data_1 = accessory_data[a[0]][i+11];
+            data_2 = accessory_data[a[0]][i+12];
+            data_3 = accessory_data[a[0]][i+13];
+            data_4 = accessory_data[a[0]][i+14];
+            
+            if (class == "add2" && face == "top") {
+                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                    size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+            }
+        }
+    }
+}
diff --git a/lib/fillets.scad b/mod/fillets.scad
similarity index 100%
rename from lib/fillets.scad
rename to mod/fillets.scad
diff --git a/mod/indent.scad b/mod/indent.scad
new file mode 100644
index 0000000..e3923fe
--- /dev/null
+++ b/mod/indent.scad
@@ -0,0 +1,243 @@
+/* indent module */
+module indent(loc_x,loc_y,loc_z,rotation,side,class,type,wallthick,gap,floorthick,pcb_z) {
+    
+    adj = .01;
+    $fn=90;
+    
+    // hdmi indent
+    if(class == "video" && type == "hdmi_a" && side == "top" && rotation == 0) {
+        place(loc_x+2.375,-(wallthick+gap)+wallthick/2,loc_z+3.75,12,10,rotation,side) 
+             rotate([90,0,0]) slot(12,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_a" && side == "top" && rotation == 90) {
+        place(-gap-wallthick/2,loc_y,loc_z+3.75,12,10,rotation,side)
+             rotate([90,0,0]) slot(12,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_a" && side == "top" && rotation == 180) {
+        place(loc_x,depth-(wallthick+gap)-10-wallthick/2,loc_z+3.75,12,10,rotation,side)
+             rotate([90,0,0]) slot(12,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_a" && side == "top" && rotation == 270) {
+        place(width-(wallthick+gap)-10-wallthick/2,loc_y+2.375,loc_z+3.75,12,10,rotation,side)
+             rotate([90,0,0]) slot(12,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_a" && side == "bottom" && rotation == 0) {
+        place(loc_x,-(wallthick+gap)+wallthick/2,loc_z-pcb_z-3.75,12,10,rotation,side)
+             rotate([90,0,0]) slot(12,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_a" && side == "bottom" && rotation == 90) {
+        place(width-(wallthick+gap)-10-wallthick/2,loc_y,loc_z-5.25,12,10,rotation,side)
+             rotate([90,0,0]) slot(12,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_a" && side == "bottom" && rotation == 180) {
+        place(loc_x+2.375,depth-(wallthick+gap)-10-wallthick/2,loc_z-pcb_z-3.75,12,10,rotation,side)
+             rotate([90,0,0]) slot(12,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_a" && side == "bottom" && rotation == 270) {
+        place(-gap-wallthick/2,loc_y+1.75,loc_z-pcb_z-3.75,12,10,rotation,side)
+             rotate([90,0,0]) slot(12,10,wallthick);
+    }
+    // hdmi micro indent
+    if(class == "video" && type == "hdmi_micro" && rotation == 0 && side == "top") {
+        place(loc_x-.5,-(wallthick+gap)+wallthick/2,loc_z+1.5,6,8,rotation,side) 
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "video" && type == "hdmi_micro" && rotation == 90 && side == "top") {
+        place(-gap-wallthick/2,loc_y+1.5,loc_z+1.5,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "video" && type == "hdmi_micro" && rotation == 180 && side == "top") {
+        place(loc_x+1,depth-(wallthick+gap)-8-wallthick/2,loc_z+1.5,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "video" && type == "hdmi_micro" && rotation == 270 && side == "top") {
+        place(width-(wallthick+gap)-8-wallthick/2,loc_y-.75,loc_z+1.5,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "video" && type == "hdmi_micro" && rotation == 0 && side == "bottom") {
+        place(loc_x+1.5,-(wallthick+gap)+wallthick/2,loc_z-3,6,8,rotation,side) 
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "video" && type == "hdmi_micro" && rotation == 90 && side == "bottom") {
+        place(width-(wallthick+gap)-8-wallthick/2,loc_y+1.25,loc_z-3,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+
+    }
+    if(class == "video" && type == "hdmi_micro" && rotation == 180 && side == "bottom") {
+        place(loc_x-1,depth-(wallthick+gap)-8-wallthick/2,loc_z-3,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "video" && type == "hdmi_micro" && rotation == 270 && side == "bottom") {
+        place(-gap-wallthick/2,loc_y-.5,loc_z-3,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    // hdmi mini indent
+    if(class == "video" && type == "hdmi_mini" && rotation == 0 && side == "top") {
+        place(loc_x+.5,loc_y-gap-wallthick/2+1,loc_z+1.5,6,10,rotation,side) 
+            rotate([90,0,0]) slot(6,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_mini" && rotation == 90 && side == "top") {
+        place(loc_x-wallthick/2,loc_y+3.5,loc_z+1.5,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+
+    }
+    if(class == "video" && type == "hdmi_mini" && rotation == 180 && side == "top") {
+        place(loc_x+4.5,loc_y-wallthick/2,loc_z+1.5,6,10,rotation,side)
+            rotate([90,0,0]) slot(6,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_mini" && rotation == 270 && side == "top") {
+        place(loc_x+wallthick/2,loc_y+1.5,loc_z+1.5,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "video" && type == "hdmi_mini" && rotation == 0 && side == "bottom") {
+        place(loc_x+4.5,loc_y-gap-wallthick/2+1,loc_z-3,6,10,rotation,side) 
+            rotate([90,0,0]) slot(6,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_mini" && rotation == 90 && side == "bottom") {
+        place(loc_x+wallthick/2,loc_y+3.5,loc_z-3,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+
+    }
+    if(class == "video" && type == "hdmi_mini" && rotation == 180 && side == "bottom") {
+        place(loc_x+.5,loc_y-wallthick/2,loc_z-3,6,10,rotation,side)
+            rotate([90,0,0]) slot(6,10,wallthick);
+    }
+    if(class == "video" && type == "hdmi_mini" && rotation == 270 && side == "bottom") {
+        place(loc_x-wallthick/2,loc_y+1.5,loc_z-3,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    // power plug indent
+    if(type == "pwr5.5_7.5x11.5" && rotation == 0 && side == "top") {
+        place(loc_x+3.75,-(wallthick+gap)+wallthick/2,loc_z+6.25,10,10,rotation,side) 
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(type == "pwr5.5_7.5x11.5" && rotation == 90 && side == "top") {
+        place(-gap-wallthick/2,loc_y-6.25,loc_z+6.25,10,10,rotation,side) 
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(type == "pwr5.5_7.5x11.5" && rotation == 180 && side == "top") {
+        place(loc_x-6.5,depth-10-(wallthick+gap)-wallthick/2,loc_z+6.25,10,10,rotation,side) 
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(type == "pwr5.5_7.5x11.5" && rotation == 270 && side == "top") {
+        place(width-(wallthick+gap)-10-wallthick/2,loc_y+3.75,loc_z+6.25,10,10,rotation,side) 
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(type == "pwr2.5_5x7.5" && rotation == 0 && side == "top") {
+        place(loc_x+2.75,-(wallthick+gap)+wallthick/2,loc_z+2.1,7,7,rotation,side) 
+            rotate([90,0,0]) cylinder(d=7, h=wallthick);
+    }
+    if(type == "pwr2.5_5x7.5" && rotation == 90 && side == "top") {
+        place(-(wallthick+gap)+wallthick/2,loc_y-4.5,loc_z+2,7,7,rotation,side) 
+            rotate([90,0,0]) cylinder(d=7, h=wallthick);
+    }
+    if(type == "pwr2.5_5x7.5" && rotation == 180 && side == "top") {
+        place(loc_x-4.5,depth-(wallthick+gap)-7-wallthick/2,loc_z+2,7,7,rotation,side) 
+            rotate([90,0,0]) cylinder(d=7, h=wallthick);
+    }
+    if(type == "pwr2.5_5x7.5" && rotation == 270 && side == "top") {
+        place(width-(wallthick+gap)-7-wallthick/2,loc_y+2.5,loc_z+2,7,7,rotation,side) 
+            rotate([90,0,0]) cylinder(d=7, h=wallthick);
+    }
+    // micro usb indent
+    if(class == "usb2" && type == "micro" && rotation == 0 && side == "top") {
+        place(loc_x-.5,-(wallthick+gap)+wallthick/2,loc_z+1.9,6,8,rotation,side) 
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usb2" && type == "micro" && rotation == 90 && side == "top") {
+        place(-gap-wallthick/2,loc_y+1.5,loc_z+1.9,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+
+    }
+    if(class == "usb2" && type == "micro" && rotation == 180 && side == "top") {
+        place(loc_x+1.5,depth-(wallthick+gap)-8-wallthick/2,loc_z+1.9,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usb2" && type == "micro" && rotation == 270 && side == "top") {
+        place(width-(wallthick+gap)-8-wallthick/2,loc_y-.5,loc_z+1.9,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usb2" && type == "micro" && rotation == 0 && side == "bottom") {
+        place(loc_x+1.5,-(wallthick+gap)+wallthick/2,loc_z-3.25,6,8,rotation,side) 
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usb2" && type == "micro" && rotation == 90 && side == "bottom") {
+        place(width-(wallthick+gap)-8-wallthick/2,loc_y+1.5,loc_z-3.25,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+
+    }
+    if(class == "usb2" && type == "micro" && rotation == 180 && side == "bottom") {
+        place(loc_x-.5,depth-(wallthick+gap)-8-wallthick/2,loc_z-3.25,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usb2" && type == "micro" && rotation == 270 && side == "bottom") {
+        place(-gap-wallthick/2,loc_y-.5,loc_z-3.25,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    // single horizontal usbc indent
+    if(class == "usbc" && type == "single_horizontal" && rotation == 0 && side == "top") {
+        place(loc_x+.5,-(wallthick+gap)+wallthick/2,loc_z+1.75,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usbc" && type == "single_horizontal" && rotation == 90 && side == "top") {
+        place(-gap-wallthick/2,loc_y+2.5,loc_z+1.75,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usbc" && type == "single_horizontal" && rotation == 180 && side == "top") {
+        place(loc_x+2.5,depth-(wallthick+gap)-8-wallthick/2,loc_z+2,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usbc" && type == "single_horizontal" && rotation == 270 && side == "top") {
+        place(width-(wallthick+gap)-8-wallthick/2,loc_y+.5,loc_z+1.75,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usbc" && type == "single_horizontal" && rotation == 0 && side == "bottom") {
+        place(loc_x+2.75,-(wallthick+gap)+wallthick/2,loc_z-3.25,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usbc" && type == "single_horizontal" && rotation == 90 && side == "bottom") {
+        place(width-(wallthick+gap)-8-wallthick/2,loc_y+2.5,loc_z-3.25,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick-(wallthick+gap)+wallthick/2);
+    }
+    if(class == "usbc" && type == "single_horizontal" && rotation == 180 && side == "bottom") {
+        place(loc_x+.5,depth-(wallthick+gap)-8-wallthick/2,loc_z-3.25,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    if(class == "usbc" && type == "single_horizontal" && rotation == 270 && side == "bottom") {
+        place(-gap-wallthick/2,loc_y+.5,loc_z-3.25,6,8,rotation,side)
+            rotate([90,0,0]) slot(6,8,wallthick);
+    }
+    // audio jack indent
+    if(class == "audio" && type == "jack_3.5" && rotation == 0 && side == "top") {
+        place(loc_x+3.15,-(wallthick+gap)+wallthick/2,loc_z+2,8,8,rotation,side) 
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(class == "audio" && type == "jack_3.5" && rotation == 90 && side == "top") {
+        place(-gap-wallthick/2,loc_y-4.6,loc_z+2,8,8,rotation,side)
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(class == "audio" && type == "jack_3.5" && rotation == 180 && side == "top") {
+        place(loc_x-4.6,depth-(wallthick+gap)-8-wallthick/2,loc_z+2,8,8,rotation,side) 
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(class == "audio" && type == "jack_3.5" && rotation == 270 && side == "top") {
+        place(width-(wallthick+gap)-8-wallthick/2,loc_y+3.15,loc_z+2,8,8,rotation,side)
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(class == "audio" && type == "jack_3.5" && rotation == 0 && side == "bottom") {
+        place(loc_x-4.6,-(wallthick+gap)+wallthick/2,loc_z-3.5,8,8,rotation,side) 
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(class == "audio" && type == "jack_3.5" && rotation == 90 && side == "bottom") {
+        place(width-(wallthick+gap)-8-wallthick/2,loc_y-4.6,loc_z-3.5,8,8,rotation,side)
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(class == "audio" && type == "jack_3.5" && rotation == 180 && side == "bottom") {
+        place(loc_x+3.15,depth-(wallthick+gap)-8-wallthick/2,loc_z-3.5,8,8,rotation,side) 
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+    if(class == "audio" && type == "jack_3.5" && rotation == 270 && side == "bottom") {
+        place(-gap-wallthick/2,loc_y+3.15,loc_z-3.5,8,8,rotation,side)
+            rotate([90,0,0]) cylinder(d=10, h=wallthick);
+    }
+}
diff --git a/mod/parametric_move.scad b/mod/parametric_move.scad
new file mode 100644
index 0000000..0f54ebd
--- /dev/null
+++ b/mod/parametric_move.scad
@@ -0,0 +1,301 @@
+module parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4) {
+    
+    // absolute no parametrics
+    if(parametric[1] == false && parametric[2] == false && parametric[3] == false) {        
+        add(type,loc_x,loc_y,loc_z,face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+    }
+    // x axis accessory parametrics
+    if(parametric[1] == true && parametric[2] == false && parametric[3] == false) {
+        if(parametric[0] == "case") {
+            add(type,loc_x+case_offset_x,loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            add(type,loc_x+pcb_loc_x,loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // y axis accessory parametrics
+    if(parametric[1] == false && parametric[2] == true && parametric[3] == false) {
+        if(parametric[0] == "case") {
+            add(type,loc_x,loc_y+case_offset_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            add(type,loc_x,loc_y+pcb_loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // z axis accessory parametrics
+    if(parametric[1] == false && parametric[2] == false && parametric[3] == true) {
+        if(parametric[0] == "case" && face == "top") {
+            add(type,loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face == "bottom") {
+            add(type,loc_x,loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face != "bottom" && face != "top") {
+            add(type,loc_x,loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            add(type,loc_x,loc_y,loc_z+pcb_loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "top") {
+            add(type,loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "bottom") {
+            add(type,loc_x,loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // xy axis accessory parametrics
+    if(parametric[1] == true && parametric[2] == true && parametric[3] == false) {
+        if(parametric[0] == "case") {
+            add(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            add(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // xz axis accessory parametrics
+    if(parametric[1] == true && parametric[2] == false && parametric[3] == true) {
+        if(parametric[0] == "case" && face == "top") {
+            add(type,loc_x+case_offset_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face == "bottom") {
+            add(type,loc_x+case_offset_x,loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face != "bottom" && face != "top") {
+            add(type,loc_x+case_offset_x,loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            add(type,loc_x+pcb_loc_x,loc_y,loc_z+pcb_loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "top") {
+            add(type,loc_x+pcb_loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "bottom") {
+            add(type,loc_x+pcb_loc_x,loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // yz axis accessory parametrics
+    if(parametric[1] == false && parametric[2] == true && parametric[3] == true) {
+        if(parametric[0] == "case" && face == "top") {
+            add(type,loc_x,loc_y+case_offset_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face == "bottom") {
+            add(type,loc_x,loc_y+case_offset_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face != "bottom" && face != "top") {
+            add(type,loc_x,loc_y+case_offset_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            add(type,loc_x,loc_y+pcb_loc_y,loc_z+pcb_loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "top") {
+            add(type,loc_x,loc_y+pcb_loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "bottom") {
+            add(type,loc_x,loc_y+pcb_loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // xyz axis accessory parametrics
+    if(parametric[1] == true && parametric[2] == true && parametric[3] == true) {
+        if(parametric[0] == "case" && face == "top") {
+            add(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face == "bottom") {
+            add(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face != "bottom" && face != "top") {
+            add(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            add(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+pcb_loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "top") {
+            add(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "bottom") {
+            add(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+}
+
+
+
+module parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
+                            size_x,size_y,size_z,data_1,data_2,data_3,data_4) {
+    
+    // absolute no parametrics
+    if(parametric[1] == false && parametric[2] == false && parametric[3] == false) {        
+        sub(type,loc_x,loc_y,loc_z,face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+    }
+    // x axis accessory parametrics
+    if(parametric[1] == true && parametric[2] == false && parametric[3] == false) {
+        if(parametric[0] == "case") {
+            sub(type,loc_x+case_offset_x,loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            sub(type,loc_x+pcb_loc_x,loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // y axis accessory parametrics
+    if(parametric[1] == false && parametric[2] == true && parametric[3] == false) {
+        if(parametric[0] == "case") {
+            sub(type,loc_x,loc_y+case_offset_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            sub(type,loc_x,loc_y+pcb_loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // z axis accessory parametrics
+    if(parametric[1] == false && parametric[2] == false && parametric[3] == true) {
+        if(parametric[0] == "case" && face == "top") {
+            sub(type,loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face == "bottom") {
+            sub(type,loc_x,loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face != "bottom" && face != "top") {
+            sub(type,loc_x,loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            sub(type,loc_x,loc_y,loc_z+pcb_loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "top") {
+            sub(type,loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "bottom") {
+            sub(type,loc_x,loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // xy axis accessory parametrics
+    if(parametric[1] == true && parametric[2] == true && parametric[3] == false) {
+        if(parametric[0] == "case") {
+            sub(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            sub(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // xz axis accessory parametrics
+    if(parametric[1] == true && parametric[2] == false && parametric[3] == true) {
+        if(parametric[0] == "case" && face == "top") {
+            sub(type,loc_x+case_offset_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face == "bottom") {
+            sub(type,loc_x+case_offset_x,loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face != "bottom" && face != "top") {
+            sub(type,loc_x+case_offset_x,loc_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            sub(type,loc_x+pcb_loc_x,loc_y,loc_z+pcb_loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "top") {
+            sub(type,loc_x+pcb_loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "bottom") {
+            sub(type,loc_x+pcb_loc_x,loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // yz axis accessory parametrics
+    if(parametric[1] == false && parametric[2] == true && parametric[3] == true) {
+        if(parametric[0] == "case" && face == "top") {
+            sub(type,loc_x,loc_y+case_offset_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face == "bottom") {
+            sub(type,loc_x,loc_y+case_offset_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face != "bottom" && face != "top") {
+            sub(type,loc_x,loc_y+case_offset_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            sub(type,loc_x,loc_y+pcb_loc_y,loc_z+pcb_loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "top") {
+            sub(type,loc_x,loc_y+pcb_loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "bottom") {
+            sub(type,loc_x,loc_y+pcb_loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+    // xyz axis accessory parametrics
+    if(parametric[1] == true && parametric[2] == true && parametric[3] == true) {
+        if(parametric[0] == "case" && face == "top") {
+            sub(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face == "bottom") {
+            sub(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "case" && face != "bottom" && face != "top") {
+            sub(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc") {
+            sub(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+pcb_loc_z,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "top") {
+            sub(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+case_offset_tz+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+        if(parametric[0] == "sbc-case_z" && face == "bottom") {
+            sub(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+case_offset_bz,
+                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
+        }
+    }
+}
diff --git a/mod/place.scad b/mod/place.scad
new file mode 100644
index 0000000..eb25114
--- /dev/null
+++ b/mod/place.scad
@@ -0,0 +1,46 @@
+/*
+
+    place(x,y,z,size_x,size_y,rotation,side)
+
+*/
+
+/* placement module *must be first* for children() */
+module place(x,y,z,size_x,size_y,rotation,side) {
+
+    if (side == "top") {
+        if (rotation == 0 || rotation == 90 || rotation == 180 || rotation == 270) {    
+            if ((rotation >= 0 && rotation < 90) || (rotation < -270 && rotation > -360))
+                translate([x,y,z]) rotate([0,0,-rotation]) children();
+
+            if ((rotation >= 90 && rotation < 180) || (rotation < -180 && rotation >= -270))
+                translate([x,y+size_x,z]) rotate([0,0,-rotation]) children();
+           
+            if ((rotation >= 180 && rotation < 270) || (rotation < -90 && rotation >= -180))
+                translate([x+size_x,y+size_y,z]) rotate([0,0,-rotation]) children(0);
+           
+            if ((rotation >= 270 && rotation < 360) || (rotation < 0 && rotation >= -90))
+                translate([x+size_y,y,z]) rotate([0,0,-rotation]) children(); }
+        else {
+            translate([x,y,z]) rotate([0,0,-rotation]) children();            
+        }
+    }   
+    if (side == "bottom") {
+        if (rotation == 0 || rotation == 90 || rotation == 180 || rotation == 270) {   
+            if ((rotation >= 0 && rotation < 90) || (rotation < -270 && rotation > -360))
+                translate([x+size_x,y,z]) rotate([0,180,rotation]) children();
+           
+            if ((rotation >= 90 && rotation < 180) || (rotation < -180 && rotation >= -270))
+                translate([x+size_y,y+size_x,z]) rotate([0,180,rotation]) children();
+               
+            if ((rotation >= 180 && rotation < 270) || (rotation < -90 && rotation >= -180))
+                translate([x,y+size_y,z]) rotate([0,180,rotation]) children();
+           
+            if ((rotation >= 270 && rotation < 360) || (rotation < 0 && rotation >= -90))
+                translate([x,y,z]) rotate([0,180,rotation]) children(); }
+        else {
+            translate([x,y,z]) rotate([0,180,rotation]) children();
+            
+        }
+    }    
+    children([1:1:$children-1]);
+}
diff --git a/mod/sub.scad b/mod/sub.scad
new file mode 100644
index 0000000..98d1c20
--- /dev/null
+++ b/mod/sub.scad
@@ -0,0 +1,70 @@
+/*
+
+    sub(type,loc_x,loc_y,loc_z,size_x,size_y,size_z,rotation,face,side,case_z,data_1,data_2,data_3,data_4)
+
+*/
+
+/* subtractive module */
+module sub(type,loc_x,loc_y,loc_z,face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4) {
+
+    if(type == "rectangle") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) slab_r([size_x,size_y,size_z],data_4);
+    }
+    if(type == "round") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) cylinder(d=size_x,h=size_z);
+    }
+    if(type == "slot") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) slot(size_x,size_y,size_z);
+    }
+    if(type == "text") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) linear_extrude(height = size_z) text(data_3, size=data_1);
+    }
+    if(type == "art") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) art(data_1,data_2,data_3); 
+    }
+    if(type == "button") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) button(data_3,[size_x,size_y,size_z],data_4,data_1); 
+    }
+    if(type == "hd_holes") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) hd_bottom_holes(data_1,data_3,"none","none",data_2);
+    }    
+    if(type == "hd_vertleft_holes") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) hd_bottom_holes(data_1,data_3,"vertical","left",data_2);
+    }    
+    if(type == "hd_vertright_holes") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) hd_bottom_holes(data_1,data_3,"vertical","right",data_2);
+    }    
+    if(type == "hk_fan_top") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) hk_fan_top();
+    }    
+    if(type == "punchout") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) punchout(size_x,size_y,data_1,size_z,data_2,data_3);
+    }    
+    if(type == "fan") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) fan_mask(size_x, size_z, data_1);
+    }
+    if(type == "vent") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) vent(size_x,size_y,size_z,data_4,data_1,data_2,data_3);
+    }
+    if(type == "vent_hex") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) vent_hex(size_x,size_y,size_z,data_1,data_2,data_3);
+    }
+    if(type == "microusb") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) microusb_open();
+    }
+    if(type == "sphere") {
+        translate([loc_x,loc_y,loc_z])  rotate(rotation) sphere(d=size_x);
+    }
+    if(type == "keyhole") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) keyhole(data_4, true); 
+    }
+    if(type == "h3_port_extender") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) h3_port_extender(data_3, true); 
+    }
+    if(type == "hk_pwr_button") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_pwr_button(true); 
+    }
+    if(type == "dsub") {
+        translate([loc_x,loc_y,loc_z]) rotate(rotation) dsub(data_4, true); 
+    }
+}
diff --git a/sbc_case_builder.scad b/sbc_case_builder.scad
index 76c72e8..76340fa 100644
--- a/sbc_case_builder.scad
+++ b/sbc_case_builder.scad
@@ -15,52 +15,13 @@
     Code released under GPLv3: http://www.gnu.org/licenses/gpl.html
 
     20220202 Version 1.0.0    sbc case builder using sbc model framework.
-    20220206 Version 1.0.1    added tray-vu7 case style, other fixes.
-    20220212 Version 1.1.0    implemented sbc_case_builder.cfg config file,
-                              sbc_case_builder_library.scad and basic accessory framework.
-                              adjusted tray-vu7 tabs, adjusted tray-vu7 model alignment
-                              minor fixes and other maintenance.
-    20220220 Version 1.1.1    added .cfg commands add1,add2,model,platter
-                              schema changes, extended standoff fixes, hd mounting acc.
-                              acc. placement and other minor fixes, added raise_top setting.
-    20220227 Version 1.1.2    added sbc_off setting, fixed hdmi bottom placement
-                              schema change, extended standoff detection, hd vertical mount, oled holder
-                              access port, access cover, case feet and other fixes.
-    20220306 Version 1.1.3    added netcard, buttons, parametric access_port, other fixes and maintenance
-    20220312 Version 1.2.0    added fillet array, button cutout style, hk_lcd35, other fixes and maintenance
-    20220320 Version 1.2.1    added hk_boom bonnet model and accessories, hk_uart model, fixed uart opening,
-                              enabled pcb_z, added tabs and fixed tray case top, other fixes and maintenance
-    20220406 Version 1.2.2    added vu7c, vu8m and weatherboard2 models, other additions, 
-                              fixes and maintenance.
-    20220515 Version 1.2.3    added odroid-m1, jetson nano, rockpro64, completed mask(), improved docs
-                              changed tray top design.
-    20221005 Version 2.0.0    full customizer user interface,case configuration file changed to json,
-                              accessories kept in sbc_case_builder_accessories.cfg, 
-                              added round, hexagon, snap and fitted cases, setup additional sbc from 
-                              SBC_Model_Framework, added components and masks, added multi-associative 
-                              parametric positioning for accessories, added individual variable height 
-                              sbc standoffs, added cutaway view when case face is not movable, finished 
-                              indents for select components and orientations.
-    20221011 Version 2.0.1    adjusted cases and accessories, updated README.md and SBC_Case_Builder_Cases.gif
-    20221101 Version 2.0.2    updated sbc model framework, h3/h3+ model and rockpi5b adjustments
-    20221207 Version 2.0.3    added part view to facilitate individual part prints, updated sbc model framework, 
-                              added n2l and m1 cases
-    20231110 Version 2.0.4    fixed standoff sidewall support misplacement on sbc move, fixed standoff auto
-                              opening z height, fixed case top right side standoffs support,
-                              fixed access_port and access_cover 180 rotation in portrait and landscape,
-                              adjusted jack_3.5 and hdmi_a_vertical opening, change radxa rockpi to rock,
-                              changed visionfive2 tray design bottom screw locations, updated sbc model framework.
-    20231115 Version 2.0.5    added hex vent and new component openings, updated sbc model framework
-    20231211 Version 2.0.6    added 5mm and 8mm hex vent, added three m1s cases, updated sbc model framework,
-                              fixed snap top protrusion placement and other fixes.
     
     see https://github.com/hominoids/SBC_Case_Builder
 */
 
-use <./SBC_Model_Framework/sbc_models.scad>;
-use <./sbc_case_builder_library.scad>;
-use <./lib/fillets.scad>;
-include <./SBC_Model_Framework/sbc_models.cfg>;
+use <./SBC_Model_Framework_v2/sbc_models.scad>;
+include <./sbc_case_builder_library.scad>;
+include <./SBC_Model_Framework_v2/sbc_models.cfg>;
 include <./sbc_case_builder_accessories.cfg>;
 
 /* [View] */
@@ -86,13 +47,13 @@ move_front = 0; // [-1:100]
 // move rear mm in model view or < 0 = off
 move_rear = 0; // [-1:100]
 
-/* [Adjustments] */
+/* [adjments] */
 // base case design
 case_design = "shell"; // [shell,panel,stacked,tray,round,hex,snap,fitted]
 // base case style
 case_style = "none"; // ["none","vu5","vu7","sides"]
 // single board computer model
-sbc_model = "c1+"; //  ["c1+", "c2", "c4", "xu4", "xu4q", "mc1", "hc1", "n1", "n2", "n2+", "n2+_noheatsink", "n2l", "n2lq", "m1", "m1_noheatsink", "m1s", "h2", "h3", "hc4", "show2", "rpizero", "rpizero2w", "rpi1a+", "rpi1b+", "rpi3a+", "rpi3b", "rpi3b+", "rpi4b", "rpi5", "rpi5_noheatsink", "a64", "rock64", "rockpro64", "quartz64a", "quartz64b", "h64b", "star64", "atomicpi", "jetsonnano", "rock4b+", "rock4c", "rock4c+", "rock5b-v1.3", "rock5b-v1.42", "rock5bq-v1.42", "vim1", "vim2", "vim3", "vim3l", "vim4", "tinkerboard", "tinkerboard-s", "tinkerboard-2", "tinkerboard-r2", "opizero", "opizero2", "opir1plus_lts", "opir1", "opi5", "licheerv+dock", "visionfive2", "visionfive2q"]
+sbc_model = "c1+"; //  ["c1+", "c2", "c4", "hc4", "xu4", "xu4q", "mc1", "hc1", "n1", "n2", "n2+", "n2l", "n2lq", "m1", "m1s", "h2", "h2+", "h3", "h3+", "show2", "rpipico", "rpipicow", "rpicm4+ioboard", "rpicm1", "rpicm3", "rpicm3l", "rpicm3+", "rpicm4s", "rpicm4", "rpicm4l", "rpizero", "rpizerow", "rpizero2w", "rpi1a+", "rpi1b+", "rpi2b", "rpi3a+", "rpi3b", "rpi3b+", "rpi4b", "rpi5", "rock64", "rockpro64", "quartz64a", "quartz64b", "h64b", "star64", "rock4a", "rock4b", "rock4a+", "rock4b+", "rock4c", "rock4c+", "rock5b-v1.3", "rock5b", "rock5bq", "vim1", "vim2", "vim3", "vim3l", "vim4", "tinkerboard", "tinkerboard-s", "tinkerboard-2", "tinkerboard-2s", "tinkerboard-r2", "tinkerboard-r2s", "opizero", "opizero2", "opir1plus_lts", "opir1", "opi5", "jetsonnano", "lepotato", "sweetpotato", "tritium-h2+", "tritium-h3", "tritium-h5", "solitude", "alta", "atomicpi", "visionfive2", "licheerv+dock", "rak19007"]
 // sbc location x axis
 pcb_loc_x = 0; //[0:.5:300]
 // sbc location y axis
@@ -178,11 +139,16 @@ accessory_name = "none"; // ["none", "hk_uart", "c1+_shell_boombox", "c1+_panel_
 a = search([accessory_name],accessory_data);
 s = search([sbc_model],sbc_data);
 
-pcb_width = sbc_data[s[0]][1];
-pcb_depth = sbc_data[s[0]][2];
-pcb_z = sbc_data[s[0]][3];
-pcb_tmaxz = sbc_data[s[0]][5];
-pcb_bmaxz = sbc_data[s[0]][6];
+pcb_id = sbc_data[s[0]][4];
+pcb_width = sbc_data[s[0]][10][0];
+pcb_depth = sbc_data[s[0]][10][1];
+pcb_z = sbc_data[s[0]][10][2];
+pcb_tmaxz = sbc_data[s[0]][11][5];
+pcb_bmaxz = sbc_data[s[0]][11][6];
+pcb_color = sbc_data[s[0]][11][1];
+pcb_radius = sbc_data[s[0]][11][0];
+
+echo(pcb_id, pcb_width, pcb_depth, pcb_z, pcb_tmaxz, pcb_bmaxz, pcb_color, pcb_radius);
 
 width = pcb_width+2*(wallthick+gap)+case_offset_x;
 depth = pcb_depth+2*(wallthick+gap)+case_offset_y;
@@ -194,7 +160,7 @@ hex_diameter = sqrt(pow(width+2*(wallthick+gap),2)+pow(depth+2*(wallthick+gap),2
 
 
 /* [Hidden] */
-adjust = .01;
+adj = .01;
 $fn=90;
 case_fn = 360;                                  // circle segments for round cases
 case_ffn = 90;                                  // circle segments for fillet of round cases
@@ -309,7 +275,7 @@ if (view == "model") {
                             cube([gap+wallthick+1.01,depth+2,case_z+2]);
                     }
                     if(move_rightside < 0) {
-                        translate([width-gap-(2*wallthick)-adjust,-gap-wallthick-1,-lower_bottom]) 
+                        translate([width-gap-(2*wallthick)-adj,-gap-wallthick-1,-lower_bottom]) 
                             cube([gap+wallthick,depth+2,case_z+2]);
                     }
                 }
@@ -333,7 +299,7 @@ if (view == "model") {
                             cube([gap+wallthick+1.01,depth+2,case_z+2]);
                     }
                     if(move_rightside < 0) {
-                        translate([width-gap-(2*wallthick)-adjust,-gap-wallthick-1,raise_top]) 
+                        translate([width-gap-(2*wallthick)-adj,-gap-wallthick-1,raise_top]) 
                             cube([gap+wallthick,depth+2,case_z+2]);
                     }
                 }
@@ -667,2569 +633,4 @@ if (view == "part") {
     else {
         echo(width=width,depth=depth,top=top_height,bottom=bottom_height);        
     }    
-}
-
-
-// case bottom
-module case_bottom(case_design) {
-
-    difference() {
-        union() {
-            difference() {
-                union() {
-                    if(case_design == "shell") {
-                        difference() {
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,bottom_height/2]) 
-                                cube_fillet_inside([width,depth,bottom_height], 
-                                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                        top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                            translate([(width/2)-wallthick-gap,
-                                (depth/2)-wallthick-gap,(bottom_height/2)+floorthick]) 
-                                    cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),bottom_height], 
-                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
-                                            top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                        }
-                    }
-                    if(case_design == "panel") {
-                       union() {
-                           translate([-gap,-gap,0]) 
-                                cube([width-(2*wallthick),depth-(2*wallthick),floorthick]);
-                            translate([(width*(1/5))-8-(wallthick+gap),depth-(2*wallthick)-gap-adjust,0]) 
-                                    cube([8,wallthick+2*adjust,floorthick]);
-                            translate([width-(width*(1/5))-(wallthick+gap),depth-(2*wallthick)-gap-adjust,0])
-                                    cube([8,wallthick+2*adjust,floorthick]);                   
-                            translate([(width*(1/5))-8-(wallthick+gap),-wallthick-gap+adjust,0])
-                                    cube([8,wallthick+2*adjust,floorthick]);
-                            translate([width-(width*(1/5))-(wallthick+gap),-wallthick-gap+adjust,0])
-                                    cube([8,wallthick+2*adjust,floorthick]);
-                        }
-                    }
-                    if(case_design == "stacked") {
-                        translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,floorthick/2]) 
-                            cube_fillet_inside([width-(2*wallthick),depth-(2*wallthick),floorthick], 
-                                vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                    top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                    }
-                    if(case_design == "tray") {
-                        difference() {
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,(bottom_height)/2]) 
-                                cube_fillet_inside([width,depth,bottom_height], 
-                                    vertical=[0,0,0,0], top=[0,0,0,0], 
-                                        bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,(bottom_height/2)+floorthick]) 
-                                cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),bottom_height+adjust], 
-                                    vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
-                                        top=[0,0,0,0],bottom=[2,2,2,2], $fn=90);
-                        }
-                        // right side nut  
-                        translate([width-wallthick-gap-wallthick-4+adjust,wallthick+gap+10,
-                                floorthick+3.4]) rotate([90,0,90]) 
-                                    cylinder(d=10, h=4, $fn=6);
-                        // left side nut
-                        translate([-adjust-gap,wallthick+gap+10,floorthick+3.4]) 
-                            rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
-                        if(depth >= 75 && sbc_model != "visionfive2" && sbc_model != "visionfive2q" && sbc_model != "rock5b-v1.42" && sbc_model != "rock5bq-v1.42" && sbc_model != "rock5b-v1.3") {
-                            translate([width-wallthick-gap-wallthick-4+adjust,depth-wallthick-gap-10,
-                                    floorthick+3.4]) rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
-                            translate([-adjust-gap,depth-wallthick-gap-10,floorthick+3.4]) 
-                                rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);                        
-                        }
-                        else {
-                            if(sbc_model == "visionfive2" || sbc_model == "visionfive2q" || sbc_model == "rock5b-v1.42" ||  sbc_model == "rock5bq-v1.42" || sbc_model == "rock5b-v1.3") {
-                                translate([width-wallthick-gap-wallthick-4+adjust,wallthick+gap+58,
-                                        floorthick+3.4]) rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
-                                translate([-adjust-gap,wallthick+gap+58,floorthick+3.4]) 
-                                    rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
-                            }
-                            else {
-                                translate([width-wallthick-gap-wallthick-4+adjust,wallthick+gap+40,
-                                        floorthick+3.4]) rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
-                                translate([-adjust-gap,wallthick+gap+40,floorthick+3.4]) 
-                                    rotate([90,0,90]) cylinder(d=10, h=4, $fn=6);
-                            }
-                        }
-                        
-                        // front panel
-                        if(case_style == "sides" || case_style == "vu5" || case_style == "vu7") {
-                            translate([-wallthick-gap,depth-(2*wallthick)-gap,bottom_height-adjust]) 
-                                rotate([0,0,0]) cube([width,wallthick,top_height]);
-                        }
-                        else {
-                            translate([-wallthick-gap,depth-(2*wallthick)-gap,bottom_height-adjust]) 
-                                rotate([0,0,0]) cube([width,wallthick,top_height-floorthick]);
-                        }
-                        
-                        // rear panel
-                        translate([-wallthick-gap,-wallthick-gap,bottom_height-adjust]) 
-                            cube([width,wallthick,top_height-floorthick]);
-                        
-                    }                  
-                    if(case_design == "round") {
-                        difference() {
-                            translate([pcb_width/2,pcb_depth/2,bottom_height/2]) rotate([0,0,30]) 
-                                cylinder_fillet_inside(h=bottom_height, r=case_diameter/2, 
-                                    top=0, bottom=fillet, $fn=case_fn, fillet_fn=case_ffn, center=true);
-                            translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+floorthick]) rotate([0,0,30]) 
-                                cylinder_fillet_inside(h=bottom_height+adjust, r=(case_diameter/2)-lip/2, 
-                                    top=0, bottom=fillet-1, $fn=case_fn, fillet_fn=case_ffn, center=true);
-                            difference() {
-                                translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,30]) 
-                                    cylinder(h=lip+adjust, r=(case_diameter/2)+1, $fn=case_fn);
-                                translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,30]) 
-                                    cylinder(h=lip+2*adjust, r=(case_diameter/2)-lip/4, $fn=case_fn);
-                            }
-                        }
-                        difference() {
-                            translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+2*floorthick]) rotate([0,0,30]) 
-                                cylinder_fillet_inside(h=bottom_height+adjust+floorthick+lip,
-                                    r=(case_diameter/2)-lip/2,top=0,bottom=fillet-1, $fn=case_fn, 
-                                        fillet_fn=case_ffn, center=true);
-                            if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
-                               sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
-                                    sbc_model != "rpizero" && sbc_model != "rpizero2w") {
-                                translate([-16,(depth/2)-150,-adjust])
-                                    cube([width+10,300,case_z-2*floorthick-2]); 
-                                translate([width-9,(depth/2)-62.5,bottom_height-2*adjust])
-                                    cube([20,110,top_height-2*floorthick-2]);
-                            }
-                            else {
-                                translate([-width/2,0,-adjust])
-                                    cube([300,depth+100,case_z-2*floorthick-2]); 
-                                translate([(-width+50)/2,-50,bottom_height-2*adjust])
-                                    cube([width+50,50+adjust,top_height-2*floorthick-2]);
-                            }
-                        }
-                    }                    
-                    if(case_design == "hex") {
-                        if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
-                            sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
-                                sbc_model != "rpizero" && sbc_model != "rpizero2w") {
-                            difference() {
-                                translate([pcb_width/2,pcb_depth/2,bottom_height/2]) rotate([0,0,30]) 
-                                    cylinder_fillet_inside(h=bottom_height, r=case_diameter/2, 
-                                        top=0, bottom=fillet, $fn=6, fillet_fn=case_ffn, center=true);
-                                translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+floorthick]) rotate([0,0,30]) 
-                                    cylinder_fillet_inside(h=bottom_height+adjust,r=(case_diameter/2)-lip/2,top=0, 
-                                        bottom=fillet-1,$fn=6,fillet_fn=case_ffn, center=true);
-                                difference() {
-                                    translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,30]) 
-                                        cylinder(h=lip+adjust,r=(case_diameter/2)+1, $fn=6);
-                                    translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,30]) 
-                                        cylinder(h=lip+2*adjust,r=(case_diameter/2)-lip/4, $fn=6);
-                                }
-                            }
-                            difference() {
-                                translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+2*floorthick]) rotate([0,0,30]) 
-                                    cylinder_fillet_inside(h=bottom_height+adjust+floorthick+lip,
-                                        r=(case_diameter/2)-lip/2,top=0, bottom=fillet-1, $fn=6, 
-                                            fillet_fn=case_ffn, center=true);
-                                translate([-16,(depth/2)-150,-adjust])
-                                    cube([width+10,300,case_z-2*floorthick-2]); 
-                                translate([width-9,(depth/2)-62.5,bottom_height-2*adjust])
-                                    cube([20,110,top_height-2*floorthick-2]); 
-                            }
-                        }
-                        else {
-                            difference() {
-                                translate([pcb_width/2,pcb_depth/2,bottom_height/2]) rotate([0,0,0]) 
-                                    cylinder_fillet_inside(h=bottom_height, r=hex_diameter/2, 
-                                        top=0, bottom=fillet, $fn=6, fillet_fn=case_ffn, center=true);
-                                translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+floorthick]) rotate([0,0,0]) 
-                                    cylinder_fillet_inside(h=bottom_height+adjust,r=(hex_diameter/2)-lip/2,top=0, 
-                                        bottom=fillet-1,$fn=6,fillet_fn=case_ffn, center=true);
-                                difference() {
-                                    translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,0]) 
-                                        cylinder(h=lip+adjust,r=(hex_diameter/2)+1, $fn=6);
-                                    translate([pcb_width/2,pcb_depth/2,bottom_height-lip]) rotate([0,0,0]) 
-                                        cylinder(h=lip+2*adjust,r=(hex_diameter/2)-lip/4, $fn=6);
-                                }
-                            }
-                            difference() {
-                                translate([pcb_width/2,pcb_depth/2,(bottom_height/2)+2*floorthick]) rotate([0,0,0]) 
-                                    cylinder_fillet_inside(h=bottom_height+adjust+floorthick+lip,
-                                        r=(hex_diameter/2)-lip/2,top=0, bottom=fillet-1, $fn=6, 
-                                            fillet_fn=case_ffn, center=true);
-                                translate([-width/2,0,-adjust])
-                                    cube([300,depth+100,case_z-2*floorthick-2]); 
-                                translate([(-width+50)/2,-50,bottom_height-2*adjust])
-                                    cube([width+50,50+adjust,top_height-2*floorthick-2]);
-                            }                            
-                        }
-                    }                    
-                    if(case_design == "snap") {
-                        difference() {
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,(floorthick+case_z)/2]) 
-                                cube_fillet_inside([width,depth,floorthick+case_z], 
-                                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                        top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,floorthick+(floorthick+case_z)/2]) 
-                                cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),case_z+floorthick], 
-                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
-                                            top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                            // snap top indent
-                            translate([-gap-wallthick+.75,(depth/2)-(depth*.75)/2-gap-wallthick,case_z-.5]) 
-                                rotate([0,45,0]) cube([4,depth*.75,4]);
-                            translate([width-wallthick-gap-6.25,(depth/2)-(depth*.75)/2-gap-wallthick,case_z-.5])
-                                rotate([0,45,0]) cube([4,depth*.75,4]);
-                        }
-                    }
-                    if(case_design == "fitted") {
-                        difference() {
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z/2]) 
-                                cube_fillet_inside([width,depth,case_z], 
-                                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                        top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                            translate([(width/2)-wallthick-gap,
-                                (depth/2)-wallthick-gap,(case_z/2)+floorthick]) 
-                                    cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),case_z], 
-                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
-                                            top=[0,0,0,0], bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                            difference() {
-                                translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-lip/2]) 
-                                    cube_fillet_inside([width+adjust,depth+adjust,lip+adjust], 
-                                        vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                            top=[0,0,0,0],bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                                
-                                translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-lip/2]) 
-                                    cube_fillet_inside([width-wallthick,depth-wallthick,lip+adjust], 
-                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],top=[0,0,0,0],
-                                            bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                            }
-                        }
-                    }
-                    // additive accessories
-                    if(accessory_name != "none") {
-                        for (i=[1:15:len(accessory_data[a[0]])-1]) {
-                            class = accessory_data[a[0]][i];
-                            type = accessory_data[a[0]][i+1];
-                            loc_x = accessory_data[a[0]][i+2];
-                            loc_y = accessory_data[a[0]][i+3];
-                            loc_z = accessory_data[a[0]][i+4];
-                            face = accessory_data[a[0]][i+5];
-                            rotation = accessory_data[a[0]][i+6];
-                            parametric = accessory_data[a[0]][i+7];
-                            size_x = accessory_data[a[0]][i+8];
-                            size_y = accessory_data[a[0]][i+9];
-                            size_z = accessory_data[a[0]][i+10];
-                            data_1 = accessory_data[a[0]][i+11];
-                            data_2 = accessory_data[a[0]][i+12];
-                            data_3 = accessory_data[a[0]][i+13];
-                            data_4 = accessory_data[a[0]][i+14];
-
-                            if(class == "add1" && face == "bottom") {
-                                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                                    size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                            }
-                        }
-                    }
-                }
-                // side attachment holes
-                if(case_design == "tray") {
-                    // right side bottom attachment holes          
-                    translate([width-2*(wallthick+gap)-sidethick-adjust,wallthick+gap+10,
-                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                    // right side bottom nut inset          
-                    translate([width-3.5-(2*wallthick)-gap-.6,wallthick+gap+10,
-                        floorthick+3.4]) rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
-                    // left side bottom attachment holes
-                    translate([-wallthick-gap-adjust,wallthick+gap+10,floorthick+3.4]) rotate([0,90,0]) 
-                            cylinder(d=3, h=10+sidethick+(2*adjust));
-                    // left side bottom nut inset
-                    translate([-gap+.6,wallthick+gap+10,floorthick+3.4]) 
-                        rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
-                    if(depth >= 75 && sbc_model != "visionfive2" && sbc_model != "visionfive2q" && sbc_model != "rock5b-v1.42" && sbc_model != "rock5bq-v1.42" && sbc_model != "rock5b-v1.3") {
-                        translate([width-2*(wallthick+gap)-sidethick-adjust,depth-wallthick-gap-10,
-                            floorthick+3.4]) rotate([0,90,0]) 
-                                cylinder(d=3, h=10+sidethick+(2*adjust));
-                        translate([-wallthick-gap-adjust-6,depth-wallthick-gap-10,
-                            floorthick+3.4]) rotate([0,90,0]) 
-                                cylinder(d=3, h=10+sidethick+(2*adjust));
-                        translate([width-3.5-(2*wallthick)-gap-.6,depth-wallthick-gap-10,
-                            floorthick+3.4])rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
-                        translate([-gap+.6,depth-wallthick-gap-10,floorthick+3.4]) 
-                            rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
-                    }
-                    else {
-                        if(sbc_model == "visionfive2" || sbc_model == "visionfive2q" || sbc_model == "rock5b-v1.42" ||  sbc_model == "rock5bq-v1.42" || sbc_model == "rock5b-v1.3") {
-                            translate([width-3*(wallthick+gap)-adjust,wallthick+gap+58,
-                                floorthick+3.4]) rotate([0,90,0]) 
-                                    cylinder(d=3, h=10+sidethick+(2*adjust));
-                            translate([-wallthick-gap-adjust-6,wallthick+gap+58,
-                                floorthick+3.4]) rotate([0,90,0]) 
-                                    cylinder(d=3, h=10+sidethick+(2*adjust));
-                            translate([width-3.5-(2*wallthick)-gap-.6,wallthick+gap+58,
-                                floorthick+3.4])rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
-                            translate([-gap+.6,wallthick+gap+58,floorthick+3.4]) 
-                                rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
-                        }
-                        else {                         
-                            translate([width-3*(wallthick+gap)-adjust,wallthick+gap+40,
-                                floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                            translate([-wallthick-gap-adjust-6,wallthick+gap+40,
-                                floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                            translate([width-3.5-(2*wallthick)-gap-.6,wallthick+gap+40,
-                                floorthick+3.4])rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
-                            translate([-gap+.6,wallthick+gap+40,floorthick+3.4]) 
-                                rotate([90,0,90]) cylinder(d=6.6, h=3.5, $fn=6);
-                        }
-                    }
-                }
-                // pcb standoff holes
-                if(sbc_bottom_standoffs == true && bottom_standoff[5] != 4) {
-                    for (i=[7:3:16]) {
-                        pcb_hole_x = sbc_data[s[0]][i]+pcb_loc_x;
-                        pcb_hole_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-                        pcb_hole_size = sbc_data[s[0]][i+2];
-                        if (pcb_hole_x!=0 && pcb_hole_y!=0) {
-                            translate([pcb_hole_x,pcb_hole_y,-1]) cylinder(d=6.5, h=bottom_height);
-                        }
-                    }
-                }
-                // extended standoff holes
-                if(case_ext_standoffs == true) {
-                    // right-rear standoff
-                    if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
-                        translate([width-(2*(wallthick+gap))-(c_fillet/2),(c_fillet/2),-1]) cylinder(d=6.5, h=bottom_height);
-                    }
-                    // right-front standoff
-                    if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) || width-pcb_loc_x-pcb_width >= 10) {
-                        translate([width-(c_fillet/2)-(2*(wallthick+gap)),
-                        depth-(c_fillet/2)-(2*(wallthick+gap)),-1]) cylinder(d=6.5, h=bottom_height);
-                    }
-                    // left-rear standoff
-                    if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
-                        translate([(c_fillet/2),(c_fillet/2),-1]) cylinder(d=6.5, h=bottom_height);
-                    }
-                    // left-front standoff
-                    if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
-                        translate([(c_fillet/2),depth-(c_fillet/2)-(2*(wallthick+gap)),-1]) 
-                            cylinder(d=6.5, h=bottom_height);
-                    }
-                }
-            }
-            // pcb standoffs
-            if(sbc_bottom_standoffs  == true) {
-                for (i=[7:3:16]) {
-                    pcb_hole_x = sbc_data[s[0]][i]+pcb_loc_x;
-                    pcb_hole_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-                    pcb_hole_size = sbc_data[s[0]][i+2];
-                    if(pcb_hole_x!=0 && pcb_hole_y!=0) {
-                        if (i == 7) {
-                            normal_standoff = [bottom_standoff[0],
-                                                bottom_height-pcb_z+pcb_loc_z+bottom_rear_left,
-                                                bottom_standoff[2],
-                                                bottom_standoff[3],
-                                                bottom_standoff[4],
-                                                bottom_standoff[5],
-                                                bottom_standoff[6],
-                                                bottom_standoff[7],
-                                                bottom_standoff[8],
-                                                bottom_standoff[9],
-                                                bottom_standoff[10]];
-                            translate([pcb_hole_x,pcb_hole_y,0]) standoff(normal_standoff);
-                        }
-                        if (i == 10) {
-                            normal_standoff = [bottom_standoff[0],
-                                                bottom_height-pcb_z+pcb_loc_z+bottom_front_left,
-                                                bottom_standoff[2],
-                                                bottom_standoff[3],
-                                                bottom_standoff[4],
-                                                bottom_standoff[5],
-                                                bottom_standoff[6],
-                                                bottom_standoff[7],
-                                                bottom_standoff[8],
-                                                bottom_standoff[9],
-                                                bottom_standoff[10]];
-                            translate([pcb_hole_x,pcb_hole_y,0]) standoff(normal_standoff);
-                        }
-                        if (i == 13) {
-                            normal_standoff = [bottom_standoff[0],
-                                                bottom_height-pcb_z+pcb_loc_z+bottom_rear_right,
-                                                bottom_standoff[2],
-                                                bottom_standoff[3],
-                                                bottom_standoff[4],
-                                                bottom_standoff[5],
-                                                bottom_standoff[6],
-                                                bottom_standoff[7],
-                                                bottom_standoff[8],
-                                                bottom_standoff[9],
-                                                bottom_standoff[10]];
-                            translate([pcb_hole_x,pcb_hole_y,0]) standoff(normal_standoff);
-                        }
-                        if (i == 16) {
-                            normal_standoff = [bottom_standoff[0],
-                                                bottom_height-pcb_z+pcb_loc_z+bottom_front_right,
-                                                bottom_standoff[2],
-                                                bottom_standoff[3],
-                                                bottom_standoff[4],
-                                                bottom_standoff[5],
-                                                bottom_standoff[6],
-                                                bottom_standoff[7],
-                                                bottom_standoff[8],
-                                                bottom_standoff[9],
-                                                bottom_standoff[10]];
-                            translate([pcb_hole_x,pcb_hole_y,0]) standoff(normal_standoff);
-                        }
-                    }
-                }
-            }
-            // extended standoffs
-            if(case_ext_standoffs == true) {
-                // right-rear standoff
-                if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
-                    translate([width-(2*(wallthick+gap))-(c_fillet/2),(c_fillet/2),0]) standoff(bottom_ext_standoff);
-                }
-                // right-front standoff
-                if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) || width-pcb_loc_x-pcb_width >= 10) {
-                    translate([width-(c_fillet/2)-(2*(wallthick+gap)),
-                        depth-(c_fillet/2)-(2*(wallthick+gap)),0]) standoff(bottom_ext_standoff);
-                }
-                // left-rear standoff
-                if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
-                    translate([(c_fillet/2),(c_fillet/2),0]) standoff(bottom_ext_standoff);                
-                }
-                // left-front standoff
-                if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
-                    translate([(c_fillet/2),depth-(c_fillet/2)-(2*(wallthick+gap)),0]) 
-                        standoff(bottom_ext_standoff);                
-                }
-            }
-            // standoff sidewall support
-            if(sidewall_support == true && sbc_bottom_standoffs == true) {
-                if(pcb_width/pcb_depth >= 1.4) {
-                    for(i=[7:3:16]) {
-                        pcb_hole_x = sbc_data[s[0]][i]+pcb_loc_x;
-                        pcb_hole_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-                        pcb_hole_size = sbc_data[s[0]][i+2];
-                        if(pcb_hole_x!=0 && pcb_hole_y!=0) {
-                            if(i == 7) {
-                                translate([pcb_hole_x-1, pcb_hole_y-(bottom_standoff[0]/2)-(gap+adjust)-1,0])
-                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_rear_left]);
-                            }
-                            if(i == 10) {
-                                translate([pcb_hole_x-1, pcb_hole_y+(bottom_standoff[0]/2)-.6+adjust,0])
-                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_front_left]);
-                            }
-                            if(i == 13) {
-                                translate([pcb_hole_x-1, pcb_hole_y-(bottom_standoff[0]/2)-(gap+adjust)-1,0])
-                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_rear_right]);
-                            }
-                            if(i == 16) {
-                                translate([pcb_hole_x-1, pcb_hole_y+(bottom_standoff[0]/2)-.6+adjust,0])
-                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_front_right]);
-                            }
-                        }
-                    }
-                }
-                else {
-                    for (i=[7:3:16]) {
-                        pcb_hole_x = sbc_data[s[0]][i]+pcb_loc_x;
-                        pcb_hole_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-                        pcb_hole_size = sbc_data[s[0]][i+2];
-                        if(pcb_hole_x!=0 && pcb_hole_y!=0) {
-                            if(i == 7 && sbc_model != "n2l") {
-                                translate([pcb_hole_x-(bottom_standoff[0]/2)-2.6+adjust, pcb_hole_y-gap,0])
-                                    cube([gap+1.6,2,bottom_height-pcb_z+pcb_loc_z+bottom_rear_left]);
-                            }
-                            if (i == 7 && sbc_model == "n2l") {
-                                translate([pcb_hole_x-1, pcb_hole_y-(bottom_standoff[0]/2)-(gap+adjust)-1,0])
-                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_rear_left]);
-                            }
-                            if(i == 10 && sbc_model != "n2l") {
-                                translate([pcb_hole_x-(bottom_standoff[0]/2)-2.6+adjust, pcb_hole_y-gap,0])
-                                    cube([gap+1.6,2,bottom_height-pcb_z+pcb_loc_z+bottom_front_left]);
-                            }
-                            if(i == 10 && sbc_model == "n2l") {
-                                translate([pcb_hole_x-1, pcb_hole_y+(bottom_standoff[0]/2)-.6+adjust,0])
-                                    cube([2,gap+1.6,bottom_height-pcb_z+pcb_loc_z+bottom_front_left]);
-                            }
-                            if (i == 13) {
-                                translate([pcb_hole_x+(bottom_standoff[0]/2)-.5+adjust, pcb_hole_y-gap,0])
-                                    cube([gap+1.5,2,bottom_height-pcb_z+pcb_loc_z+bottom_rear_right]);
-                            }
-                            if (i == 16) {
-                                translate([pcb_hole_x+(bottom_standoff[0]/2)-.5+adjust, pcb_hole_y-gap,0])
-                                    cube([gap+1.5,2,bottom_height-pcb_z+pcb_loc_z+bottom_front_right]);
-                            }
-                        }
-                    }                 
-                }
-            }
-            // extended standoff sidewall support
-            if(case_ext_standoffs == true && sidewall_support == true) {
-                // right-rear standoff
-                if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
-                    translate([width-(2*(wallthick+gap))-(c_fillet/2)+(bottom_ext_standoff[0]/2)-.5,
-                        (c_fillet/2)-1,0]) cube([gap+adjust+2,2,bottom_ext_standoff[1]]);
-                }
-                // right-front standoff    
-                if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) 
-                    || width-pcb_loc_x-pcb_width >= 10) {
-                        translate([width-(2*(wallthick+gap))-(c_fillet/2)+(bottom_ext_standoff[0]/2)-.5,
-                            depth-(c_fillet/2)-(2*(wallthick+gap))-1,0])
-                                cube([gap+adjust+2,2,bottom_ext_standoff[1]]);
-                }
-                // left-rear standoff
-                if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
-                    translate([(c_fillet/2)-(wallthick+gap)-(bottom_ext_standoff[0]/2)+.6,
-                        (c_fillet/2)-1,0]) cube([gap+adjust+2,2,bottom_ext_standoff[1]]);
-                }              
-                // left-front standoff
-                if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
-                    translate([(c_fillet/2)-(wallthick+gap)-(bottom_ext_standoff[0]/2)+.6,
-                        depth-(c_fillet/2)-(2*(wallthick+gap))-1,0]) 
-                            cube([gap+adjust+2,2,bottom_ext_standoff[1]]);
-                }
-            }
-        }
-        // subtractive accessories
-        if(accessory_name != "none") {
-            for (i=[1:15:len(accessory_data[a[0]])-1]) {
-                class = accessory_data[a[0]][i];
-                type = accessory_data[a[0]][i+1];
-                loc_x = accessory_data[a[0]][i+2];
-                loc_y = accessory_data[a[0]][i+3];
-                loc_z = accessory_data[a[0]][i+4];
-                face = accessory_data[a[0]][i+5];
-                rotation = accessory_data[a[0]][i+6];
-                parametric = accessory_data[a[0]][i+7];
-                size_x = accessory_data[a[0]][i+8];
-                size_y = accessory_data[a[0]][i+9];
-                size_z = accessory_data[a[0]][i+10];
-                data_1 = accessory_data[a[0]][i+11];
-                data_2 = accessory_data[a[0]][i+12];
-                data_3 = accessory_data[a[0]][i+13];
-                data_4 = accessory_data[a[0]][i+14];
-                
-                if ((class == "sub" && face == "bottom") || class == "suball") {
-                    if(accessory_highlight == false) {
-                        parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                    }
-                    else {
-                        #parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-
-                    }
-                }
-                // create openings for additive 
-                if (class == "add2" && face == "bottom" && type == "standoff") {
-                    parametric_move_sub("round",loc_x,loc_y,loc_z-.1,face,rotation,parametric,
-                        6.5,size_y,floorthick+1,data_1,data_2,data_3,data_4);
-                }
-                if ((class == "add1" || class == "add2") && type == "uart_holder") {
-                    if(accessory_highlight == false) {
-                            parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
-                                0,0,0,data_1,data_2,data_3,data_4);
-                    }
-                    else {
-                            #parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
-                                0,0,0,data_1,data_2,data_3,data_4);
-                    }
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "hc4_oled_holder") {
-                    parametric_move_sub("rectangle",loc_x+1,loc_y+1.75,loc_z+25.5,face,rotation,parametric,
-                        26.5,wallthick+gap+4,15,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "access_port") {
-                    if(data_3 == "landscape") {
-                        if(rotation[2] == 180) {
-                            parametric_move_sub("rectangle",loc_x-6+size_x,loc_y+.5+size_y,loc_z-adjust,face,rotation,
-                                parametric,size_x-17,size_y-1,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                            parametric_move_sub("rectangle",loc_x-size_x+12.5+size_x,loc_y-(size_y/2)+6+size_y,loc_z-adjust,
-                                face,rotation,parametric,5.5,10.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
-                        }
-                        else {
-                            parametric_move_sub("rectangle",loc_x+6,loc_y-.5,loc_z-adjust,face,rotation,
-                                parametric,size_x-17,size_y-1,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                            parametric_move_sub("rectangle",loc_x+size_x-12.5,loc_y+(size_y/2)-6,loc_z-adjust,face,rotation,
-                                parametric,5.5,10.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
-                            
-                        }
-                    }
-                    else {
-                        if(rotation[2] == 180) {
-                            if(data_3 == "portrait") {
-                                parametric_move_sub("rectangle",loc_x+size_x-.5,loc_y+size_y-5.75,loc_z-adjust,face,
-                                    rotation,parametric,size_x-1,size_y-17,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                                parametric_move_sub("rectangle",loc_x-(size_x/2)+5+size_x,loc_y-size_y+12.5+size_y,
-                                    loc_z-adjust,face,rotation,parametric,10.5,5.5,floorthick+.12,data_1,data_2,data_3,
-                                        [5.5,5.5,5.5,5.5]);
-                            }
-                            else {
-                                parametric_move_sub("rectangle",loc_x-.5,loc_y-5.75,loc_z-adjust,face,rotation,
-                                    parametric,size_x-1,size_y-17,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                                parametric_move_sub("rectangle",loc_x-(size_x/2)+5,loc_y-size_y+12.5,loc_z-adjust,face,
-                                rotation,parametric,10.5,5.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
-                            }
-                        }
-                        else {
-                            parametric_move_sub("rectangle",loc_x+.5,loc_y+5.75,loc_z-adjust,face,rotation,
-                                parametric,size_x-1,size_y-17,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                            parametric_move_sub("rectangle",loc_x+(size_x/2)-5,loc_y+size_y-12.5,loc_z-adjust,face,rotation,
-                                parametric,10.5,5.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
-                        }
-                    }
-                }
-                if ((class == "model") && face == "bottom" && type == "h2_netcard") {
-                    parametric_move_sub("rectangle",loc_x+25,loc_y-6,loc_z-14,face,rotation,
-                        parametric,68.5,wallthick+3,14.5,data_1,data_2,data_3,[1,1,1,1]);
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "button") {
-                    if(data_3 == "recess") {
-                        #parametric_move_sub("sphere",loc_x,loc_y,loc_z,face,rotation,
-                            parametric,size_x-1,size_y,size_z,data_1,data_2,data_3,0);
-                    }
-                    if(data_3 == "cutout") {
-                        parametric_move_sub("rectangle",loc_x+10,loc_y+4,loc_z-adjust,face,rotation,
-                            parametric,size_x+2,size_y+1,size_z+2*adjust,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                    }
-                }
-            }                   
-        }
-        // sbc openings
-        if(sbc_highlight == true) {
-            #open_io();
-        }
-        else {
-            open_io();
-        }
-        // clean fillets
-        if(case_design == "shell") {
-            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,bottom_height/2]) 
-                cube_negative_fillet([width,depth,bottom_height], radius=-1,
-                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], top=[0,0,0,0], 
-                            bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-        }
-    }
-    // additive accessories
-    if(accessory_name != "none") {
-        for (i=[1:15:len(accessory_data[a[0]])-1]) {
-            class = accessory_data[a[0]][i];
-            type = accessory_data[a[0]][i+1];
-            loc_x = accessory_data[a[0]][i+2];
-            loc_y = accessory_data[a[0]][i+3];
-            loc_z = accessory_data[a[0]][i+4];
-            face = accessory_data[a[0]][i+5];
-            rotation = accessory_data[a[0]][i+6];
-            parametric = accessory_data[a[0]][i+7];
-            size_x = accessory_data[a[0]][i+8];
-            size_y = accessory_data[a[0]][i+9];
-            size_z = accessory_data[a[0]][i+10];
-            data_1 = accessory_data[a[0]][i+11];
-            data_2 = accessory_data[a[0]][i+12];
-            data_3 = accessory_data[a[0]][i+13];
-            data_4 = accessory_data[a[0]][i+14];
-            
-            if(class == "add2" && face == "bottom") {
-                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                    size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-            }
-        }
-    }
-}
-
-
-// case top
-module case_top(case_design) {
-
-    difference() {
-        union() {
-            difference() {
-                union() {
-                    if(case_design == "shell") {
-                        difference() {
-                            translate([(width/2)-wallthick-gap,
-                                (depth/2)-wallthick-gap,bottom_height+(top_height/2)]) 
-                                    cube_fillet_inside([width,depth,top_height], 
-                                        vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                            top=[fillet,fillet,fillet,fillet,fillet], 
-                                                bottom=[0,0,0,0], $fn=90);
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,
-                                bottom_height+(top_height/2)-floorthick]) 
-                                    cube_fillet_inside([width-(wallthick*2),depth-(wallthick*2),top_height], 
-                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
-                                            top=[fillet,fillet,fillet,fillet,fillet],
-                                                bottom=[0,0,0,0], $fn=90);
-                        }
-                    }
-                    if(case_design == "panel") {
-                        union() {
-                           translate([-gap,-gap,case_z-floorthick]) 
-                                cube([width-(2*wallthick),depth-(2*wallthick),floorthick]);
-                            translate([(width*(1/5))-8-(wallthick+gap),depth-(2*wallthick)-gap-adjust,
-                                case_z-floorthick]) 
-                                    cube([8,wallthick+2*adjust,floorthick]);
-                            translate([width-(width*(1/5))-(wallthick+gap),depth-(2*wallthick)-gap-adjust,
-                                case_z-floorthick]) 
-                                    cube([8,wallthick+2*adjust,floorthick]);                   
-                            translate([(width*(1/5))-8-(wallthick+gap),-wallthick-gap+adjust,
-                                case_z-floorthick]) 
-                                    cube([8,wallthick+2*adjust,floorthick]);
-                            translate([width-(width*(1/5))-(wallthick+gap),-wallthick-gap+adjust,
-                                case_z-floorthick]) 
-                                    cube([8,wallthick+2*adjust,floorthick]);
-                        }                
-                    }
-                    if(case_design == "stacked") {
-                        translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,
-                            case_z-(floorthick/2)]) 
-                             cube_fillet_inside([width-(2*wallthick),depth-(2*wallthick),floorthick], 
-                                 vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                     top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                        }
-                    if(case_design == "tray" && (case_style == "vu5" || case_style == "vu7" || case_style == "sides")) {
-                        translate([-wallthick-gap+.5,-wallthick-gap,case_z])
-                            cube([width-1,depth,floorthick]);
-                        translate([-wallthick-gap+.5,-wallthick-gap,
-                            case_z-floorthick+adjust]) cube([width-1,wallthick,wallthick]);
-                    }
-                    if(case_design == "tray" && case_style == "none") {
-                        difference() {
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z/2]) 
-                                cube_fillet_inside([width+2*wallthick+1,depth,case_z], 
-                                    vertical=[0,0,0,0], top=[0,fillet,0,fillet,fillet], 
-                                        bottom=[0,0,0,0], $fn=90);
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,(case_z/2)-floorthick+.25]) 
-                                cube_fillet_inside([width+1,depth+(wallthick*2),case_z], 
-                                    vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
-                                        top=[0,0,0,0],bottom=[0,0,0,0], $fn=90);
-                            // right side bottom attachment hole          
-                            translate([width-2*(wallthick+gap)-sidethick-adjust,wallthick+gap+10,
-                                floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                            // left side bottom attachment hole
-                            translate([-2*(wallthick+gap)-sidethick-adjust,wallthick+gap+10,
-                                floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                            if(depth >= 75 && sbc_model != "visionfive2" && sbc_model != "visionfive2q"&& sbc_model != "rock5b-v1.42" && sbc_model != "rock5bq-v1.42" && sbc_model != "rock5b-v1.3") {
-                               translate([width-2*(wallthick+gap)-sidethick-adjust,depth-wallthick-gap-10,
-                                    floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                                translate([-wallthick-gap-adjust-6,depth-wallthick-gap-10,
-                                    floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                            }
-                            else {
-                                if(sbc_model == "visionfive2" || sbc_model == "visionfive2q" || sbc_model == "rock5b-v1.42" ||  sbc_model == "rock5bq-v1.42" || sbc_model == "rock5b-v1.3") {
-                                   translate([width-2*(wallthick+gap)-sidethick-adjust,wallthick+gap+58,
-                                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                                    translate([-wallthick-gap-adjust-6,wallthick+gap+58,
-                                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                                }
-                                else {
-                                   translate([width-2*(wallthick+gap)-sidethick-adjust,wallthick+gap+40,
-                                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                                    translate([-wallthick-gap-adjust-6,wallthick+gap+40,
-                                        floorthick+3.4]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                                }
-                            }
-                        }
-                    }
-                    if(case_design == "round") {
-                        difference() {
-                            translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-lip/2]) rotate([0,0,30]) 
-                                cylinder_fillet_inside(h=top_height+lip, r=case_diameter/2, 
-                                    top=fillet, bottom=0, $fn=case_fn, fillet_fn=case_ffn, center=true);
-                            translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-floorthick-lip/2]) rotate([0,0,30]) 
-                                cylinder_fillet_inside(h=top_height+lip, r=(case_diameter/2)-wallthick, 
-                                    top=fillet-1, bottom=0, $fn=case_fn, fillet_fn=case_ffn, center=true);
-                            translate([pcb_width/2,pcb_depth/2,bottom_height-adjust-lip/2]) rotate([0,0,30]) 
-                                cylinder_fillet_inside(h=lip+2*adjust, r=(case_diameter/2)-wallthick/2+tol/2, 
-                                    top=fillet-1, bottom=0, $fn=case_fn, fillet_fn=case_ffn, center=true);
-                            // io cutout
-                            if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
-                                sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
-                                    sbc_model != "rpizero" && sbc_model != "rpizero2w") {
-                                translate([width,(depth/2)-wallthick-gap,bottom_height-lip+top_height/2-floorthick])
-                                    cube_fillet_inside([18,depth-2*(wallthick+gap)-1,top_height+lip+2], 
-                                        vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                            }
-                            else {
-                                translate([(width/2)-wallthick-gap,-20,bottom_height-lip+top_height/2-floorthick])
-                                    cube_fillet_inside([width-2*(wallthick+gap)-1,40,top_height+lip+2], 
-                                        vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                            }
-                        }
-                        if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
-                            sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
-                                sbc_model != "rpizero" && sbc_model != "rpizero2w") {
-                            translate([width-2*wallthick-gap-.95,depth/2-wallthick-gap-(depth-2*(floorthick+gap))/2,
-                                bottom_height]) cube([wallthick-adjust,depth-2*(floorthick+gap),top_height+adjust]);
-                        }
-                        else {
-                            translate([-.95,depth/2-2*wallthick-gap-(depth-2*(floorthick+gap))/2,
-                                bottom_height]) cube([width-2*(floorthick+gap),wallthick-adjust,top_height+adjust]);
-                        }
-                    }
-                    if(case_design == "hex") {
-                        if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
-                            sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" && 
-                                sbc_model != "rpizero" && sbc_model != "rpizero2w") {
-                            difference() {
-                                translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-lip/2]) rotate([0,0,30]) 
-                                    cylinder_fillet_inside(h=top_height+lip, r=case_diameter/2, 
-                                        top=fillet, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
-                                translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-floorthick-lip/2]) rotate([0,0,30]) 
-                                    cylinder_fillet_inside(h=top_height+lip, r=(case_diameter/2)-wallthick, 
-                                        top=fillet-1, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
-                                translate([pcb_width/2,pcb_depth/2,bottom_height-adjust-lip/2]) rotate([0,0,30]) 
-                                    cylinder_fillet_inside(h=lip+2*adjust, r=(case_diameter/2)-wallthick/2+tol/2, 
-                                        top=fillet-1, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
-                            // io cutout
-                            translate([width,(depth/2)-wallthick-gap,bottom_height-lip+top_height/2-floorthick])
-                                cube_fillet_inside([18,depth-2*(wallthick+gap)-1,top_height+lip+2], 
-                                    vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                            }
-                        }
-                        else {
-                            difference() {
-                                translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-lip/2]) rotate([0,0,0]) 
-                                    cylinder_fillet_inside(h=top_height+lip, r=hex_diameter/2, 
-                                        top=fillet, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
-                                translate([pcb_width/2,pcb_depth/2,bottom_height+(top_height/2)-floorthick-lip/2])
-                                    rotate([0,0,0]) cylinder_fillet_inside(h=top_height+lip, r=(hex_diameter/2)-wallthick, 
-                                        top=fillet-1, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
-                                translate([pcb_width/2,pcb_depth/2,bottom_height-adjust-lip/2]) rotate([0,0,0]) 
-                                    cylinder_fillet_inside(h=lip+2*adjust, r=(hex_diameter/2)-wallthick/2+tol/2, 
-                                        top=fillet-1, bottom=0, $fn=6, fillet_fn=case_ffn, center=true);
-                                // io cutout
-                                translate([(width/2)-wallthick-gap,-23,bottom_height-lip+top_height/2-floorthick])
-                                    cube_fillet_inside([width-2*(wallthick+gap),40,top_height+lip+2], 
-                                        vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                            }
-                        }
-                        if(width/depth >= 1.4 && sbc_model != "vim1" && sbc_model != "vim2" && 
-                            sbc_model != "vim3l" && sbc_model != "vim3" && sbc_model != "vim4" &&
-                                sbc_model != "rpizero" && sbc_model != "rpizero2w") {
-                            translate([width-2*wallthick-gap-.95,depth/2-wallthick-gap-(depth-2*(floorthick+gap))/2,
-                                bottom_height]) cube([wallthick-adjust,depth-2*(floorthick+gap),top_height+adjust]);
-                        }
-                        else {
-                            translate([0,depth/2-2.25*(wallthick+gap)-(depth-2*(floorthick+gap))/2,
-                                bottom_height]) cube([width-2*(floorthick+gap),wallthick-adjust,top_height+adjust]);
-                        }
-                    }
-                    if(case_design == "snap") {
-                        translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,floorthick*1.5+case_z])
-                            cube_fillet_inside([width,depth,floorthick], 
-                                vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                    top=[0,0,0,0],bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                        difference() {
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-adjust]) 
-                                cube_fillet_inside([width-2*wallthick-tol,depth-2*wallthick-tol,2*floorthick+1.5], 
-                                    vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                        top=[0,0,0,0],bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                            
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-adjust]) 
-                                cube_fillet_inside([width-(3*wallthick),depth-(3*wallthick),2*floorthick+1.5+adjust], 
-                                    vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],top=[0,0,0,0],
-                                        bottom=[fillet,fillet,fillet,fillet,fillet], $fn=90);
-                        }
-                        // snap top outdent
-                        difference() {
-                            translate([-wallthick-gap+1.25+tol,(depth/2)-((depth*.75)/2)+2.5-gap-wallthick,case_z-.5]) 
-                                rotate([0,45,0]) cube([4,(depth*.75)-5,4]);
-                            translate([-wallthick-gap+3,(depth/2)-((depth*.75)/2)+1.25-gap-wallthick,case_z+floorthick-5.75]) 
-                                rotate([0,0,0]) cube([6,(depth*.75)-2,6]);
-                        }
-                        difference() {
-                            translate([width-wallthick-gap-6.8-tol,(depth/2)-((depth*.75)/2)+2.5-gap-wallthick,case_z-.5])
-                                rotate([0,45,0]) cube([4,(depth*.75)-5,4]);
-                            translate([width-wallthick-gap-8.5,(depth/2)-((depth*.75)/2)+1.25-gap-wallthick,case_z+floorthick-5.75])
-                                rotate([0,0,0]) cube([6,(depth*.75)-2,6]);
-                        }
-                    }
-                    if(case_design == "fitted") {
-                        difference() {
-                            translate([(width/2)-wallthick-gap,
-                                (depth/2)-wallthick-gap,case_z+floorthick/2-(lip)/2]) 
-                                    cube_fillet_inside([width,depth,lip+floorthick], 
-                                        vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                                            top=[fillet,fillet,fillet,fillet,fillet], 
-                                                bottom=[0,0,0,0], $fn=90);
-                            translate([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,case_z-floorthick-1]) 
-                                    cube_fillet_inside([width-wallthick+tol,depth-wallthick+tol,lip+floorthick], 
-                                        vertical=[c_fillet-1,c_fillet-1,c_fillet-1,c_fillet-1],
-                                            top=[fillet,fillet,fillet,fillet,fillet],
-                                                bottom=[0,0,0,0], $fn=90);
-                        }
-                    }
-                    if(accessory_name != "none") {
-                        for (i=[1:15:len(accessory_data[a[0]])-1]) {
-                            class = accessory_data[a[0]][i];
-                            type = accessory_data[a[0]][i+1];
-                            loc_x = accessory_data[a[0]][i+2];
-                            loc_y = accessory_data[a[0]][i+3];
-                            loc_z = accessory_data[a[0]][i+4];
-                            face = accessory_data[a[0]][i+5];
-                            rotation = accessory_data[a[0]][i+6];
-                            parametric = accessory_data[a[0]][i+7];
-                            size_x = accessory_data[a[0]][i+8];
-                            size_y = accessory_data[a[0]][i+9];
-                            size_z = accessory_data[a[0]][i+10];
-                            data_1 = accessory_data[a[0]][i+11];
-                            data_2 = accessory_data[a[0]][i+12];
-                            data_3 = accessory_data[a[0]][i+13];
-                            data_4 = accessory_data[a[0]][i+14];
-                            
-                            if (class == "add1" && face == "top") {
-                                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,
-                                    parametric,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                            }
-                        }
-                    }                  
-                }
-                // pcb standoff holes
-                if(top_standoff[5] != 4 && sbc_top_standoffs == true) {
-                    for (i=[7:3:16]) {
-                        pcb_hole_x = sbc_data[s[0]][i]+pcb_loc_x;
-                        pcb_hole_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-                        pcb_hole_size = sbc_data[s[0]][i+2];
-                        if (pcb_hole_x!=0 && pcb_hole_y!=0) {
-                            translate([pcb_hole_x,pcb_hole_y,top_height+1]) cylinder(d=6.5, h=top_height);
-                        }
-                    }
-                }
-                // extended standoff holes
-                if(case_ext_standoffs == true) {
-                    // right-rear standoff
-                    if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
-                        translate([width-(2*(wallthick+gap))-(c_fillet/2),(c_fillet/2),top_height+1]) 
-                            cylinder(d=6.5, h=top_height);
-                    }
-                    // right-front standoff    
-                    if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) || width-pcb_loc_x-pcb_width >= 10) {
-                        translate([width-(c_fillet/2)-(2*(wallthick+gap)),
-                            depth-(c_fillet/2)-(2*(wallthick+gap)),top_height+1]) cylinder(d=6.5, h=top_height);
-                    }
-                    // left-rear standoff
-                    if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
-                        translate([(c_fillet/2),(c_fillet/2),top_height+1]) cylinder(d=6.5, h=top_height);
-                    }              
-                    // left-front standoff
-                    if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
-                        translate([+(c_fillet/2),depth-(c_fillet/2)-(2*(wallthick+gap)),
-                            top_height+1]) cylinder(d=6.5, h=top_height+1);
-                    }
-                }
-            }           
-            // pcb standoffs
-            if(sbc_top_standoffs == true) {
-                for (i=[7:3:16]) {
-                    pcb_hole_x = sbc_data[s[0]][i]+pcb_loc_x;
-                    pcb_hole_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-                    pcb_hole_size = sbc_data[s[0]][i+2];
-                    if(pcb_hole_x!=0 && pcb_hole_y!=0) {
-                        if (i == 7) {
-                            normal_standoff = [top_standoff[0],
-                                                top_height+pcb_loc_z+top_rear_left,
-                                                top_standoff[2],
-                                                top_standoff[3],
-                                                top_standoff[4],
-                                                top_standoff[5],
-                                                top_standoff[6],
-                                                top_standoff[7],
-                                                top_standoff[8],
-                                                top_standoff[9],
-                                                top_standoff[10]];
-                            translate([pcb_hole_x,pcb_hole_y,case_z]) standoff(normal_standoff);
-                        }
-                        if (i == 10) {
-                            normal_standoff = [top_standoff[0],
-                                                top_height+pcb_loc_z+top_front_left,
-                                                top_standoff[2],
-                                                top_standoff[3],
-                                                top_standoff[4],
-                                                top_standoff[5],
-                                                top_standoff[6],
-                                                top_standoff[7],
-                                                top_standoff[8],
-                                                top_standoff[9],
-                                                top_standoff[10]];
-                            translate([pcb_hole_x,pcb_hole_y,case_z]) standoff(normal_standoff);
-                        }
-                        if (i == 13) {
-                            normal_standoff = [top_standoff[0],
-                                                top_height+pcb_loc_z+top_rear_right,
-                                                top_standoff[2],
-                                                top_standoff[3],
-                                                top_standoff[4],
-                                                top_standoff[5],
-                                                top_standoff[6],
-                                                top_standoff[7],
-                                                top_standoff[8],
-                                                top_standoff[9],
-                                                top_standoff[10]];
-                            translate([pcb_hole_x,pcb_hole_y,case_z]) standoff(normal_standoff);
-                        }
-                        if (i == 16) {
-                            normal_standoff = [top_standoff[0],
-                                                top_height+pcb_loc_z+top_front_right,
-                                                top_standoff[2],
-                                                top_standoff[3],
-                                                top_standoff[4],
-                                                top_standoff[5],
-                                                top_standoff[6],
-                                                top_standoff[7],
-                                                top_standoff[8],
-                                                top_standoff[9],
-                                                top_standoff[10]];
-                            translate([pcb_hole_x,pcb_hole_y,case_z]) standoff(normal_standoff);
-                        }
-                    }                    
-                }
-            }
-            // extended standoffs
-            if(case_ext_standoffs == true) {
-                // right-rear standoff
-                if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
-                    translate([width-(2*(wallthick+gap))-(c_fillet/2),(c_fillet/2),case_z]) 
-                        standoff(top_ext_standoff);
-                }
-                // right-front standoff    
-                if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) 
-                    || width-pcb_loc_x-pcb_width >= 10) {
-                        translate([width-(c_fillet/2)-(2*(wallthick+gap)),
-                            depth-(c_fillet/2)-(2*(wallthick+gap)),case_z]) standoff(top_ext_standoff);
-                }
-                // left-rear standoff
-                if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
-                    translate([(c_fillet/2),(c_fillet/2),case_z]) standoff(top_ext_standoff);
-                }              
-                // left-front standoff
-                if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
-                    translate([(c_fillet/2),depth-(c_fillet/2)-(2*(wallthick+gap)),
-                        case_z]) standoff(top_ext_standoff);                
-                }
-            }
-            // standoff sidewall support
-            if(sidewall_support == true && sbc_top_standoffs == true) {
-                if(pcb_width/pcb_depth >= 1.4) {
-                    for (i=[7:3:16]) {
-                        pcb_hole_x = sbc_data[s[0]][i]+pcb_loc_x;
-                        pcb_hole_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-                        pcb_hole_size = sbc_data[s[0]][i+2];
-                        if(pcb_hole_x!=0 && pcb_hole_y!=0) {
-                            if (i == 7) {
-                                translate([pcb_hole_x-1, pcb_hole_y-(top_standoff[0]/2)-(gap-adjust)-1.4,
-                                    case_z-top_height-top_rear_left]) cube([2,gap+1.6,top_height+top_rear_left]);
-                            }
-                            if (i == 10) {
-                                translate([pcb_hole_x-1, pcb_hole_y+(top_standoff[0]/2)-.6+adjust,case_z-top_height-top_front_left]) 
-                                    cube([2,gap+1.6,top_height+top_front_left]);
-                            }
-                            if (i == 13) {
-                                translate([pcb_hole_x-1, pcb_hole_y-(top_standoff[0]/2)-(gap-adjust)-1.4,
-                                    case_z-top_height-top_rear_right]) cube([2,gap+1.6,top_height+top_rear_right]);
-                            }
-                            if (i == 16) {
-                                translate([pcb_hole_x-1, pcb_hole_y+(top_standoff[0]/2)-.6+adjust,case_z-top_height-top_front_right]) 
-                                    cube([2,gap+1.6,top_height+top_front_right]);
-                            }
-                        }
-                    }
-                }
-                else {
-                     for (i=[7:3:16]) {
-                        pcb_hole_x = sbc_data[s[0]][i]+pcb_loc_x;
-                        pcb_hole_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-                        pcb_hole_size = sbc_data[s[0]][i+2];
-                        if(pcb_hole_x!=0 && pcb_hole_y!=0) {
-                            if (i == 7 && sbc_model != "n2l") {
-                                translate([pcb_hole_x-(top_standoff[0]/2)-gap-adjust-1,pcb_hole_y-1,
-                                    bottom_height-top_rear_left]) cube([gap+adjust+1.6,2,top_height+top_rear_left]);
-                            }
-                            if (i == 7 && sbc_model == "n2l") {
-                                translate([pcb_hole_x-1, pcb_hole_y-(top_standoff[0]/2)-(gap-adjust)-1.4,
-                                    case_z-top_height-top_rear_left]) cube([2,gap+1.6,top_height+top_rear_left]);
-                                
-                            }
-                            if (i == 10 && sbc_model != "n2l") {
-                                translate([pcb_hole_x-(top_standoff[0]/2)-gap-adjust-1,pcb_hole_y-1,
-                                    bottom_height-top_front_left]) cube([gap+adjust+1.6,2,top_height+top_front_left]);
-                            }
-                            if (i == 10 && sbc_model == "n2l") {
-                                translate([pcb_hole_x-1, pcb_hole_y+(top_standoff[0]/2)-.6+adjust,case_z-top_height-top_front_left]) 
-                                    cube([2,gap+1.6,top_height+top_front_left]);
-                                
-                            }
-                            if (i == 13) {
-                                translate([pcb_hole_x+(top_standoff[0]/2)-adjust-.45,pcb_hole_y-1,
-                                    bottom_height-top_rear_right]) cube([gap+adjust+1.6,2,top_height+top_rear_right]);
-                            }
-                            if (i == 16) {
-                                translate([pcb_hole_x+(top_standoff[0]/2)-adjust-.45,pcb_hole_y-1,
-                                    bottom_height-top_front_right]) cube([gap+adjust+1.6,2,top_height+top_front_right]);
-                            }
-                        }
-                    }
-                }
-            }
-            // extended standoff sidewall support
-            if(case_ext_standoffs == true && sidewall_support == true) {
-                // right-rear standoff
-                if(width-pcb_loc_x-pcb_width >= 10 || pcb_loc_y >= 10) {
-                    translate([width-(2*(wallthick+gap))-(c_fillet/2)+(top_ext_standoff[0]/2)-.6,
-                        (c_fillet/2)-1,bottom_height]) cube([gap+adjust+2,2,top_height]);
-                }
-                // right-front standoff    
-                if((width-pcb_loc_x-pcb_width >= 10 && depth-pcb_loc_y-pcb_depth >= 10) 
-                    || width-pcb_loc_x-pcb_width >= 10) {
-                        translate([width-(2*(wallthick+gap))-(c_fillet/2)+(top_ext_standoff[0]/2)-.6,
-                            depth-(c_fillet/2)-(2*(wallthick+gap))-1,bottom_height])
-                                cube([gap+adjust+2,2,top_height]);
-                }
-                // left-rear standoff
-                if(pcb_loc_x >= 10 || pcb_loc_y >= 10) {
-                    translate([(c_fillet/2)-(wallthick+gap)-(top_ext_standoff[0]/2)+.6,(c_fillet/2)-1,
-                        bottom_height]) cube([gap+adjust+2,2,top_height]);
-                }              
-                // left-front standoff
-                if(pcb_loc_x >= 10 || depth-pcb_loc_y-pcb_depth >= 10) {
-                    translate([(c_fillet/2)-(wallthick+gap)-(top_ext_standoff[0]/2)+.6,
-                        depth-(c_fillet/2)-(2*(wallthick+gap))-1, bottom_height]) 
-                            cube([gap+adjust+2,2,top_height]);
-                }
-            }
-        }
-        // subtractive accessories
-        if(accessory_name != "none") {
-            for (i=[1:15:len(accessory_data[a[0]])-1]) {
-                class = accessory_data[a[0]][i];
-                type = accessory_data[a[0]][i+1];
-                loc_x = accessory_data[a[0]][i+2];
-                loc_y = accessory_data[a[0]][i+3];
-                loc_z = accessory_data[a[0]][i+4];
-                face = accessory_data[a[0]][i+5];
-                rotation = accessory_data[a[0]][i+6];
-                parametric = accessory_data[a[0]][i+7];
-                size_x = accessory_data[a[0]][i+8];
-                size_y = accessory_data[a[0]][i+9];
-                size_z = accessory_data[a[0]][i+10];
-                data_1 = accessory_data[a[0]][i+11];
-                data_2 = accessory_data[a[0]][i+12];
-                data_3 = accessory_data[a[0]][i+13];
-                data_4 = accessory_data[a[0]][i+14];
-                
-                if ((class == "sub" && face == "top") || class == "suball") {
-                    if(accessory_highlight == false) {
-                        parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,
-                            parametric,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                    }
-                    else {
-                        #parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,
-                            parametric,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                    }
-                }
-                // create openings for additive 
-                if (class == "add2" && face == "top" && type == "standoff") {
-                    parametric_move_sub("round",loc_x,loc_y,loc_z,face,rotation,parametric,
-                        6.5,size_y,floorthick+1,data_1,data_2,data_3,data_4);
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "uart_holder") {
-                    if(accessory_highlight == false) {
-                        parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
-                            0,0,0,data_1,data_2,data_3,data_4);
-                    }
-                    else {
-                        #parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
-                            0,0,0,data_1,data_2,data_3,data_4);
-                    }
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "hc4_oled_holder") {
-                    parametric_move_sub("rectangle",loc_x+1,loc_y+1.75,loc_z+26,face,rotation,
-                        parametric,26.5,wallthick+gap+4,14.5,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                }
-                if ((class == "add1" || class == "add2") && face == "top" && type == "button") {
-                    if(data_3 == "recess") {
-                        parametric_move_sub("sphere",loc_x,loc_y,loc_z,face,rotation,
-                            parametric,size_x-1,size_y,size_z,data_1,data_2,data_3,0);
-                    }
-                    if(data_3 == "cutout") {
-                        parametric_move_sub("rectangle",loc_x+10,loc_y+4,loc_z-adjust,face,rotation,
-                            parametric,size_x+2,size_y+1,size_z+2*adjust,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                    }
-                }
-                if (class == "model" && face == "bottom" && type == "hk_boom" && 
-                    rotation[0] == 90 && rotation[1] == 0 && rotation[2] == 0) {
-                        parametric_move_sub("round",loc_x+11,loc_y-4,loc_z,face,[0,0,0],
-                            parametric,5,size_y,80,data_1,data_2,data_3,data_4);
-                        parametric_move_sub("slot",loc_x+37.5,loc_y-4.75,loc_z,face,[0,0,0],
-                            parametric,6,14,80,data_1,data_2,data_3,data_4);
-                }
-            }
-        }            
-        // sbc openings
-        if(sbc_highlight == true) {
-            #open_io();
-        }
-        else {
-            open_io();
-        }
-        // clean fillets
-        if(case_design == "shell") {
-            translate(([(width/2)-wallthick-gap,(depth/2)-wallthick-gap,
-                bottom_height+(top_height/2)]) ) 
-                    cube_negative_fillet([width,depth,top_height], radius=-1,
-                        vertical=[c_fillet,c_fillet,c_fillet,c_fillet], 
-                            top=[fillet,fillet,fillet,fillet,fillet], 
-                                bottom=[0,0,0,0], $fn=90);
-        }
-    }
-    // additive accessories
-    if(accessory_name != "none") {
-        for (i=[1:15:len(accessory_data[a[0]])-1]) {
-            class = accessory_data[a[0]][i];
-            type = accessory_data[a[0]][i+1];
-            loc_x = accessory_data[a[0]][i+2];
-            loc_y = accessory_data[a[0]][i+3];
-            loc_z = accessory_data[a[0]][i+4];
-            face = accessory_data[a[0]][i+5];
-            rotation = accessory_data[a[0]][i+6];
-            parametric = accessory_data[a[0]][i+7];
-            size_x = accessory_data[a[0]][i+8];
-            size_y = accessory_data[a[0]][i+9];
-            size_z = accessory_data[a[0]][i+10];
-            data_1 = accessory_data[a[0]][i+11];
-            data_2 = accessory_data[a[0]][i+12];
-            data_3 = accessory_data[a[0]][i+13];
-            data_4 = accessory_data[a[0]][i+14];
-            
-            if (class == "add2" && face == "top") {
-                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                    size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-            }
-        }
-    }
-}
-
-// case side
-module case_side(case_design,case_style,side) {
-    
-    difference() {
-        union() {
-            if(case_design == "panel") {
-                if(side == "rear") {
-                    difference() {
-                        union() {
-                            translate([-gap,-wallthick-gap,-floorthick]) 
-                                cube([width-2*wallthick,wallthick,case_z+2*floorthick]);
-                            // right hook
-                            difference() {
-                                translate([width-(2*wallthick)-gap-adjust,-wallthick-gap,
-                                    ((case_z)/2)-4]) 
-                                        cube([(2*wallthick)+.5,wallthick,8]);
-                                translate([width-(2*wallthick)-gap-adjust,-wallthick-gap-adjust,
-                                    ((case_z)/2)-4-adjust]) 
-                                        cube([wallthick+.25,wallthick+(2*adjust),4.25]);
-                            }
-                            // left hook
-                            difference() {
-                                translate([-(2*wallthick)-gap-adjust-.25,-wallthick-gap,
-                                    ((case_z)/2)-4]) 
-                                        cube([(2*wallthick)+.5,wallthick,8]);
-                                translate([-wallthick-gap-adjust-.25,-wallthick-gap-adjust,
-                                    ((case_z)/2)-4-adjust]) 
-                                        cube([wallthick+.25,wallthick+(2*adjust),4.25]);
-                            }
-                        }
-                        // top slots
-                        translate([(width*(1/5))-8.25-(wallthick+gap),-wallthick-gap-adjust,
-                            case_z-floorthick-.25]) 
-                                cube([8.5,wallthick+2*adjust,floorthick+.5]);
-                        translate([width-(width*(1/5))-(wallthick+gap)-.25,-wallthick-gap-adjust,
-                            case_z-floorthick-.25]) 
-                                cube([8.5,wallthick+2*adjust,floorthick+.5]);
-                        // bottom slots
-                        translate([(width*(1/5))-8.25-(wallthick+gap),-wallthick-gap-adjust,-.25]) 
-                                cube([8.5,wallthick+2*adjust,floorthick+.5]);
-                        translate([width-(width*(1/5))-(wallthick+gap)-.25,-wallthick-gap-adjust,-.25]) 
-                                cube([8.5,wallthick+2*adjust,floorthick+.5]);
-                    }
-                }
-                if(side == "front") {
-                    difference() {
-                        union() {
-                            translate([-gap,depth-2*(wallthick)-gap,-floorthick]) 
-                                cube([width-2*wallthick,wallthick,case_z+2*floorthick]);
-                            // right hook
-                            difference() {
-                                translate([width-(2*wallthick)-gap-adjust,depth-2*(wallthick)-gap-adjust,
-                                    ((case_z)/2)-4])
-                                        cube([(2*wallthick)+.5,wallthick,8]);
-                                translate([width-(2*wallthick)-gap-adjust,
-                                    depth-2*(wallthick)-adjust-gap-adjust,((case_z)/2)-4-adjust])
-                                        cube([wallthick+.25,wallthick+(2*adjust),4.25]);
-                            }
-                            // left hook
-                            difference() {
-                                translate([-(2*wallthick)-gap-adjust-.25,depth-2*(wallthick)-gap-adjust,(
-                                    (case_z)/2)-4]) 
-                                        cube([(2*wallthick)+.5,wallthick,8]);
-                                translate([-wallthick-gap-adjust-.25,depth-2*(wallthick)-adjust-gap-adjust,
-                                    ((case_z)/2)-4-adjust]) 
-                                        cube([wallthick+.25,wallthick+(2*adjust),4.25]);
-                            }
-                        }
-                        // top slots
-                        translate([(width*(1/5))-8.25-(wallthick+gap),depth-2*wallthick-gap-adjust,
-                            case_z-floorthick-.25]) 
-                                cube([8.5,wallthick+2*adjust,floorthick+.5]);
-                        translate([width-(width*(1/5))-(wallthick+gap)-.25,depth-2*wallthick-gap-adjust,
-                            case_z-floorthick-.25]) 
-                                cube([8.5,wallthick+2*adjust,floorthick+.5]);
-                        // bottom slots
-                        translate([(width*(1/5))-8.25-(wallthick+gap),depth-2*wallthick-gap-adjust,-.25]) 
-                                cube([8.5,wallthick+2*adjust,floorthick+.5]);
-                        translate([width-(width*(1/5))-(wallthick+gap)-.25,
-                            depth-2*wallthick-gap-adjust,-.25]) cube([8.5,wallthick+2*adjust,floorthick+.5]);
-                    }
-                }
-                if(side == "right") {
-                    difference() {
-                        translate([width-(2*wallthick)-gap,-(2*wallthick)-gap,-wallthick]) 
-                            cube([wallthick,depth+2*wallthick,case_z+(2*wallthick)]);
-                        translate([width-(2*wallthick)-gap-adjust,-wallthick-gap-.25,
-                            ((case_z)/2)]) cube([wallthick+2*adjust,wallthick+.5,8.5]);
-                        translate([width-(2*wallthick)-gap-adjust,depth-2*(wallthick)-gap-.25,
-                            ((case_z)/2)])
-                                cube([wallthick+2*adjust,wallthick+.5,8.5]);
-                    }
-                }
-                if(side == "left") {
-                    difference() {
-                        translate([-wallthick-gap,-(2*wallthick)-gap,-wallthick]) 
-                            cube([wallthick,depth+2*wallthick,case_z+(2*wallthick)]);
-                        translate([-wallthick-gap-adjust,-wallthick-gap-.25,((case_z)/2)])
-                            cube([wallthick+2*adjust,wallthick+.5,8.5]);
-                        translate([-wallthick-gap-adjust,depth-2*(wallthick)-gap-.25,
-                            ((case_z)/2)])
-                                cube([wallthick+2*adjust,wallthick+.5,8.5]);
-                    }
-                }
-            }
-            if(case_design == "tray" && case_style == "sides") {
-                if(side == "right") {
-                    difference() {
-                        union() {
-                            translate([width-wallthick-gap,-(2*wallthick)-gap,0]) 
-                                cube([sidethick,depth+2*wallthick,case_z+(2*wallthick)]);
-                            translate([width-gap-wallthick-1+adjust,depth-2*(wallthick+gap)-.5,case_z+(2*wallthick)-2]) 
-                                cube([1,6,2]);
-                            translate([width-gap-wallthick-1+adjust,-2*(wallthick+gap)+1.5,case_z+(2*wallthick)-2]) 
-                                cube([1,6,2]);
-                            // top rail
-                            translate([width-6.9-adjust,-gap,case_z-floorthick-.5])
-                                cube([4,depth-2*(wallthick+gap),2]);
-                        }
-                        // right side bottom attachment holes          
-                        translate([width-2*(wallthick+gap)-sidethick-adjust,wallthick+gap+10,
-                            ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                        if(depth >= 75) {                        
-                            translate([width-2*(wallthick+gap)-sidethick-adjust,depth-wallthick-gap-10,
-                                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) 
-                                    cylinder(d=3, h=10+sidethick+(2*adjust));
-                        }
-                        else {
-                            translate([width-2*(wallthick+gap)-sidethick-adjust,wallthick+gap+40,
-                                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) 
-                                    cylinder(d=3, h=10+sidethick+(2*adjust));
-                        }
-                    }
-                }
-                if(side == "left") {
-                    difference() {
-                        union() {
-                            translate([-wallthick-gap-sidethick,-(2*wallthick)-gap,0]) 
-                                cube([sidethick,depth+2*wallthick,case_z+(2*wallthick)]);
-                            translate([-gap-wallthick-adjust,depth-2*(wallthick+gap)-.5,case_z+(2*wallthick)-2])
-                                cube([1,6,2]);
-                            translate([-gap-wallthick-adjust,-2*(wallthick+gap)+1.5,case_z+(2*wallthick)-2]) 
-                                cube([1,6,2]);
-                            // top rail
-                            translate([-wallthick-gap-adjust,-gap,case_z-floorthick-.5]) 
-                                cube([4,depth-2*(wallthick+gap),2]);
-                        }
-                        // left side bottom attachment holes
-                        translate([-wallthick-gap-adjust-5,wallthick+gap+10,
-                            ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=10+sidethick+(2*adjust));
-                        if(depth >= 75) {
-                            translate([-wallthick-gap-adjust-6,depth-wallthick-gap-10,
-                                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) 
-                                    cylinder(d=3, h=10+sidethick+(2*adjust));
-                        }
-                        else {
-                            translate([-wallthick-gap-adjust-6,wallthick+gap+40,
-                                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) 
-                                    cylinder(d=3, h=10+sidethick+(2*adjust));
-                        }
-                    }
-                }
-            }
-            if(case_design == "tray" && case_style == "vu5") {
-                cheight = case_z+90;
-                vesa = 75;
-                vu_holder(case_style,side,vesa,cheight);
-            }
-            if(case_design == "tray" && case_style == "vu7") {
-                cheight = case_z+122;
-                vesa = 100;
-                vu_holder(case_style,side,vesa,cheight);
-            }         
-            // additive accessories
-            if(accessory_name != "none") {
-                for (i=[1:15:len(accessory_data[a[0]])-1]) {
-                    class = accessory_data[a[0]][i];
-                    type = accessory_data[a[0]][i+1];
-                    loc_x = accessory_data[a[0]][i+2];
-                    loc_y = accessory_data[a[0]][i+3];
-                    loc_z = accessory_data[a[0]][i+4];
-                    face = accessory_data[a[0]][i+5];
-                    rotation = accessory_data[a[0]][i+6];
-                    parametric = accessory_data[a[0]][i+7];
-                    size_x = accessory_data[a[0]][i+8];
-                    size_y = accessory_data[a[0]][i+9];
-                    size_z = accessory_data[a[0]][i+10];
-                    data_1 = accessory_data[a[0]][i+11];
-                    data_2 = accessory_data[a[0]][i+12];
-                    data_3 = accessory_data[a[0]][i+13];
-                    data_4 = accessory_data[a[0]][i+14];
-                    
-                    if (class == "add1" && face == side) {
-                        parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                    }
-                }
-            }
-        }
-        if(accessory_name != "none") {
-            for (i=[1:15:len(accessory_data[a[0]])-1]) {
-                class = accessory_data[a[0]][i];
-                type = accessory_data[a[0]][i+1];
-                loc_x = accessory_data[a[0]][i+2];
-                loc_y = accessory_data[a[0]][i+3];
-                loc_z = accessory_data[a[0]][i+4];
-                face = accessory_data[a[0]][i+5];
-                rotation = accessory_data[a[0]][i+6];
-                parametric = accessory_data[a[0]][i+7];
-                size_x = accessory_data[a[0]][i+8];
-                size_y = accessory_data[a[0]][i+9];
-                size_z = accessory_data[a[0]][i+10];
-                data_1 = accessory_data[a[0]][i+11];
-                data_2 = accessory_data[a[0]][i+12];
-                data_3 = accessory_data[a[0]][i+13];
-                data_4 = accessory_data[a[0]][i+14];
-                
-                if ((class == "sub" && face == side) || class == "suball") {
-                    if(accessory_highlight == false) {
-                        parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                    }
-                    else {
-                        #parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                    }
-                }
-                // create openings for additive 
-                if ((class == "sub" && face == "bottom") || class == "suball") {
-                    if(accessory_highlight == false) {
-                        parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                    }
-                    else {
-                        #parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-                    }
-                }
-                // create openings for additive 
-                if (class == "add2" && face == "bottom" && type == "standoff") {
-                    parametric_move_sub("round",loc_x,loc_y,-.1,face,rotation,parametric,
-                        6.5,size_y,floorthick+1,data_1,data_2,data_3,data_4);
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "uart_holder") {
-                    if(accessory_highlight == false) {
-                        parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
-                            0,0,0,data_1,data_2,data_3,data_4);
-                    }
-                    else {
-                        #parametric_move_sub("microusb",loc_x+5.25,loc_y-5,loc_z+4,face,rotation,parametric,
-                            0,0,0,data_1,data_2,data_3,data_4);
-                    }
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "hc4_oled_holder") {
-                    parametric_move_sub("rectangle",loc_x+1,loc_y+1.75,loc_z+25.5,face,rotation,
-                        parametric,26.5,wallthick+gap+4,15,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "access_port") {
-                    if(data_3 == "landscape") {
-                        parametric_move_sub("rectangle",loc_x+6,loc_y-.5,loc_z-adjust,face,rotation,
-                            parametric,size_x-17,size_y-1,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                        parametric_move_sub("rectangle",loc_x+size_x-12.5,loc_y+(size_y/2)-6,loc_z-adjust,face,rotation,
-                            parametric,5.5,10.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]);
-                    }
-                    else {
-                        parametric_move_sub("rectangle",loc_x+.5,loc_y+5.75,loc_z-adjust,face,rotation,parametric,
-                            size_x-1,size_y-17,floorthick+1,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                        parametric_move_sub("rectangle",loc_x+(size_x/2)-5,loc_y+size_y-12.5,loc_z-adjust,face,rotation,
-                            parametric,10.5,5.5,floorthick+.12,data_1,data_2,data_3,[5.5,5.5,5.5,5.5]); 
-                    }
-                }
-                if ((class == "model") && face == "bottom" && type == "h2_netcard") {
-                    parametric_move_sub("rectangle",loc_x+25,loc_y-6,loc_z-14,face,rotation,
-                        parametric,68.5,wallthick+3,14.5,data_1,data_2,data_3,[1,1,1,1]);
-                }
-                if ((class == "add1" || class == "add2") && face == "bottom" && type == "button") {
-                    if(data_3 == "recess") {
-                    parametric_move_sub("sphere",loc_x,loc_y,loc_z,face,rotation,
-                        parametric,size_x-1,size_y,size_z,data_1,data_2,data_3,0);
-                    }
-                    if(data_3 == "cutout") {
-                        parametric_move_sub("rectangle",loc_x+10,loc_y+4,loc_z-adjust,face,rotation,
-                            parametric,size_x+2,size_y+1,size_z+2*adjust,data_1,data_2,data_3,[.1,.1,.1,.1]);
-                    }
-                }
-            }
-        }
-        // sbc openings
-        if(sbc_highlight == true) {
-            #open_io();
-        }
-        else {
-            open_io();
-        }
-    }
-    if(accessory_name != "none") {
-        for (i=[1:15:len(accessory_data[a[0]])-1]) {
-            class = accessory_data[a[0]][i];
-            type = accessory_data[a[0]][i+1];
-            loc_x = accessory_data[a[0]][i+2];
-            loc_y = accessory_data[a[0]][i+3];
-            loc_z = accessory_data[a[0]][i+4];
-            face = accessory_data[a[0]][i+5];
-            rotation = accessory_data[a[0]][i+6];
-            parametric = accessory_data[a[0]][i+7];
-            size_x = accessory_data[a[0]][i+8];
-            size_y = accessory_data[a[0]][i+9];
-            size_z = accessory_data[a[0]][i+10];
-            data_1 = accessory_data[a[0]][i+11];
-            data_2 = accessory_data[a[0]][i+12];
-            data_3 = accessory_data[a[0]][i+13];
-            data_4 = accessory_data[a[0]][i+14];
-            
-            if (class == "add2" && face == side) {
-                parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                    size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-            }
-        }
-    }
-}
-
-// sbc openings
-module open_io() {
-
-    for (i=[69:6:len(sbc_data[s[0]])-1]) {   
-        loc_x = sbc_data[s[0]][i]+pcb_loc_x;
-        loc_y = sbc_data[s[0]][i+1]+pcb_loc_y;
-        rotation = sbc_data[s[0]][i+2];
-        side = sbc_data[s[0]][i+3];
-        class = sbc_data[s[0]][i+4];
-        type = sbc_data[s[0]][i+5];
-    
-        mask(loc_x,loc_y,bottom_height+pcb_loc_z-adjust,rotation,side,class,type,wallthick,gap,floorthick,pcb_z);
-        
-        // indents
-        if(indents == true) {
-            indent(loc_x,loc_y,bottom_height+pcb_loc_z-adjust,rotation,side,class,type,wallthick,gap,floorthick,pcb_z);
-        }
-        
-        // bottom cooling openings
-        if(side == "bottom" && cooling == "fan" && class == "heatsink") {
-            translate([loc_x+12,loc_y-28,-adjust]) 
-                fan_mask(40,floorthick+(2*adjust),2);
-        }
-        if(side == "bottom" && cooling == "vents" && class == "heatsink") {
-            for(r=[loc_x+13:4:54]) {
-                translate([r,loc_y-20,-adjust]) 
-                    cube([2,25,floorthick+(adjust*2)]);
-            }
-        }
-        if(side == "bottom" && cooling == "custom" && class == "heatsink") {
-            translate([loc_x+12,loc_y-14,-(floorthick-adjust)]) 
-                linear_extrude(height = wallthick+(2*adjust)) import(file = "./dxf/customfan.dxf");
-        }   
-        if(side == "bottom" && exhaust_vents == "vent" && (cooling == "fan" || cooling == "vents" 
-            || cooling == "custom") && class == "heatsink" && gpio_opening != "vent" && gpio_opening != "open" 
-                && gpio_opening != "punchout") {
-            for(r=[loc_x+7:4:46+loc_x]) {
-                translate([r,depth-(2*wallthick)-adjust-2,floorthick+2]) 
-                   cube([2,wallthick+(2*adjust)+1,top_height-floorthick-6]);
-            }
-        }    
-        // top cooling openings
-        if(side == "top" && cooling == "fan" && class == "heatsink" && type != "h3_oem" 
-            && type != "h2_oem" && type != "n2_oem" && type != "n2+_oem"&& type != "m1s_oem") {
-                translate([loc_x+6,loc_y-28,case_z-(floorthick+adjust)-5]) 
-                    fan_mask(40,floorthick+(2*adjust)+8,2);
-        }
-        if(side == "top" && cooling == "fan" && class == "heatsink" && type == "m1s_oem") {
-                translate([loc_x,loc_y,case_z-(floorthick+adjust)-5]) 
-                    fan_mask(40,floorthick+(2*adjust)+8,2);
-        }
-        if(side == "top" && cooling == "fan" && class == "heatsink" && (type == "n2_oem" || type == "n2+_oem")) {
-            translate([loc_x+4,loc_y+5.5,-adjust]) 
-                fan_mask(80,floorthick+(2*adjust),2);
-            if(sbc_model == "n2") {
-                translate([pcb_loc_x+7,pcb_loc_y+15,-adjust]) cylinder(d=3,h=floorthick+(adjust*2));  
-                translate([pcb_loc_x+82,pcb_loc_y+6,-adjust]) cylinder(d=3,h=floorthick+(adjust*2));
-                translate([pcb_loc_x+8,pcb_loc_y+75,-adjust]) cylinder(d=3,h=floorthick+(adjust*2));
-                translate([pcb_loc_x+82,pcb_loc_y+75,-adjust]) cylinder(d=3,h=floorthick+(adjust*2));
-            }
-        }
-        if(side == "top" && cooling == "fan" && class == "heatsink" && type == "h2_oem") {
-            translate([loc_x-28,loc_y-28,case_z-(floorthick+adjust)]) 
-                fan_mask(90,floorthick+6,2);
-        }
-        if(side == "top" && cooling == "fan" && class == "heatsink" && type == "h3_oem" ) {
-            translate([loc_x-5,loc_y-16,case_z-(floorthick+adjust)]) 
-                fan_mask(90,floorthick+6,2);
-        }
-        if(side == "top" && cooling == "vents" && class == "heatsink" && type != "m1s_oem") {
-            for(r=[loc_x+7:4:58+loc_x]) {
-                translate([r,loc_y-20,case_z-(floorthick+adjust)-6]) 
-                    cube([2,30,floorthick+(adjust*2)+12]);
-            }
-        }
-        if(side == "top" && cooling == "vents" && class == "heatsink" && type == "m1s_oem") {
-            for(r=[loc_x+7:4:58+loc_x]) {
-                translate([r-8,loc_y+8,case_z-(floorthick+adjust)-6]) 
-                    cube([2,30,floorthick+(adjust*2)+12]);
-            }
-        }
-        if(side == "top" && cooling == "hex_5mm" && class == "heatsink" && type != "m1s_oem") {
-                translate([loc_x+2,loc_y-27,case_z-(floorthick+adjust)-6]) 
-                    vent_hex(15, 7, floorthick+(adjust*2)+12, 5, 1.5, "horizontal");
-        }
-        if(side == "top" && cooling == "hex_8mm" && class == "heatsink" && type != "m1s_oem") {
-                translate([loc_x,loc_y-31,case_z-(floorthick+adjust)-6]) 
-                    vent_hex(11, 5, floorthick+(adjust*2)+12, 8, 1.5, "horizontal");
-        }
-        if(side == "top" && cooling == "hex_5mm" && class == "heatsink" && type == "m1s_oem") {
-                translate([loc_x-8,loc_y,case_z-(floorthick+adjust)-6]) 
-                    vent_hex(15, 7, floorthick+(adjust*2)+12, 5, 1.5, "horizontal");
-        }
-        if(side == "top" && cooling == "hex_8mm" && class == "heatsink" && type == "m1s_oem") {
-                translate([loc_x-8,loc_y,case_z-(floorthick+adjust)-6]) 
-                    vent_hex(11, 5, floorthick+(adjust*2)+12, 8, 1.5, "horizontal");
-        }
-        if(side == "top" && cooling == "custom" && class == "heatsink") {
-            translate([loc_x+6,loc_y-14,case_z-(floorthick+adjust)]) 
-                linear_extrude(height = wallthick+(2*adjust)+12) import(file = "./dxf/customfan.dxf");
-        }
-        if(side == "top" && exhaust_vents == "vent" && (cooling == "fan" || cooling == "vents" || cooling == "hex" 
-            || cooling == "custom") && class == "heatsink" && gpio_opening != "vent" && gpio_opening != "open" 
-                && gpio_opening != "punchout") {
-                    for(r=[loc_x+7:4:50+loc_x]) {
-                        translate([r,depth-(2*wallthick)-adjust-3,bottom_height+2]) 
-                           cube([2,wallthick+(2*adjust)+2.5,top_height-floorthick-4]);
-                    }
-        }
-    
-        // gpio opening
-        if(side == "top" && class == "gpio" && type == "header_40" && rotation == 0) {
-            if(gpio_opening == "vent") {
-                for(r=[loc_x-2:4:50+loc_x]) {
-                    translate([r,depth-(2*wallthick)-gap-adjust,bottom_height+2]) 
-                        cube([2,wallthick+(2*adjust),top_height-floorthick-4]);
-                }
-            }
-            if(gpio_opening == "open") {
-                translate([loc_x-2,depth-(2*wallthick)-adjust-gap,bottom_height+3])
-                    cube([54,wallthick+(2*adjust),top_height-floorthick-5]);
-            }
-            if(gpio_opening == "block") {
-                if(sbc_model == "m1s") {
-                    translate([loc_x-27,depth-(2*wallthick)-adjust-gap-10,bottom_height+2])
-                        cube([79,20,top_height]);
-                }
-                else {
-                    translate([loc_x-2,depth-(2*wallthick)-adjust-gap-10,bottom_height+2])
-                        cube([54,20,top_height]);
-                }
-            }
-            if(gpio_opening == "punchout") {
-                translate([loc_x+1,depth-(2*wallthick)-adjust-gap,bottom_height+7.5])
-                    rotate([-90,0,0]) punchout(50,11,2,wallthick+(2*adjust),c_fillet,"slot");
-            }
-        }
-        if(side == "top" && class == "gpio" && type == "header_40" && rotation == 90) {
-            if(gpio_opening == "vent") {
-                for(r=[loc_y-2:4:50+loc_y]) {
-                    translate([width-2*(wallthick+gap)-adjust,depth-r,bottom_height+2]) 
-                        rotate([0,0,0]) cube([6,wallthick+(2*adjust),top_height-floorthick-4]);
-                }
-            }
-            if(gpio_opening == "open") {
-                translate([loc_x+8,depth-13,bottom_height+4])
-                    rotate([0,0,-90]) cube([54,wallthick+(2*adjust),top_height-floorthick-5]);
-            }
-            if(gpio_opening == "block") {
-                translate([loc_x+8,depth-13,bottom_height+2])
-                    rotate([0,0,-90]) cube([54,wallthick+(2*adjust),top_height]);
-            }
-            if(gpio_opening == "punchout") {
-                translate([loc_x+8,depth-15,bottom_height+7.5])
-                    rotate([-90,0,-90]) punchout(50,11,2,wallthick+(2*adjust),c_fillet,"slot");
-            }
-        }
-        if(side == "top" && class == "gpio" && type == "encl_header_30") {
-            if(gpio_opening == "vent") {
-                for(r=[loc_x-2:4:39+loc_x]) {
-                    translate([r,depth-(2*wallthick)-adjust,bottom_height+2]) 
-                        cube([2,wallthick+(2*adjust),top_height-floorthick-4]);
-                }
-            }
-            if(gpio_opening == "open") {
-                translate([loc_x-2,depth-(2*wallthick)-adjust,bottom_height+3])
-                    cube([41,wallthick+(2*adjust),top_height-floorthick-5]);
-            }
-            if(gpio_opening == "block") {
-                translate([loc_x-2,depth-(2*wallthick)-adjust-10,bottom_height+2])
-                    cube([41,20,top_height]);
-            }
-            if(gpio_opening == "punchout") {
-                translate([loc_x+1,depth-(2*wallthick)-adjust-gap,bottom_height+8])
-                    rotate([-90,0,0]) punchout(34,11,2,wallthick+(2*adjust),3,"slot");
-            }
-        }
-        if(side == "top" && class == "gpio" && type == "header_26") {
-            if(gpio_opening == "vent") {
-                for(r=[loc_x-2:4:39+loc_x]) {
-                    translate([r,-wallthick-gap-adjust,bottom_height+2]) 
-                        cube([2,wallthick+(2*adjust),top_height-floorthick-4]);
-                }
-            }
-            if(gpio_opening == "open") {
-                translate([loc_x-2,-wallthick-gap-adjust,bottom_height+3])
-                    cube([41,wallthick+(2*adjust),top_height-floorthick-5]);
-            }
-            if(gpio_opening == "block") {
-                translate([loc_x-2,-wallthick-gap-adjust-10,bottom_height+2])
-                    cube([41,20,top_height]);
-            }
-            if(gpio_opening == "punchout") {
-                translate([loc_x+1,-wallthick-adjust-gap,bottom_height+8])
-                    rotate([-90,0,0]) punchout(34,11,2,wallthick+(2*adjust),3,"slot");
-            }
-        }
-    
-        // uart knockout opening
-        if(side == "top" && type == "uart_micro" && rotation == 90) {
-            translate([loc_x-wallthick-gap-8.5,loc_y-1,bottom_height+5]) rotate([90,0,90]) 
-                punchout(15,8,1,wallthick+(2*adjust)+10,2,"rectangle");
-        }
-        if(side == "top" && type == "uart_micro" && rotation == -90) {
-            translate([loc_x+2*(wallthick+gap)+1,loc_y-1,bottom_height+5]) rotate([90,0,90]) 
-                punchout(15,8,1,wallthick+(2*adjust)+5,2,"rectangle");
-        }
-        if(side == "top" && type == "uart_micro" && rotation == 270) {
-            translate([loc_x-2*(wallthick),loc_y-1,bottom_height+5]) rotate([90,0,90]) 
-                punchout(15,8,1,wallthick+(2*adjust)+12,2,"rectangle");
-        }
-        
-        if(side == "bottom" && type == "uart_micro_h" && rotation == 90) {
-            translate([loc_x-wallthick-gap+8.5,loc_y-1,bottom_height-6]) rotate([90,0,90]) 
-                punchout(15,5,1,wallthick+(2*adjust)+10,2,"rectangle");
-        }
-        if(side == "bottom" && type == "uart_micro_h" && rotation == -90) {
-            translate([loc_x+2*(wallthick+gap)+1,loc_y-1,bottom_height+5]) rotate([90,0,90]) 
-                punchout(15,5,1,wallthick+(2*adjust)+5,2,"rectangle");
-        }
-        if(side == "bottom" && type == "uart_micro_h" && rotation == 270) {
-            translate([loc_x-2*(wallthick),loc_y-1,bottom_height+5]) rotate([90,0,90]) 
-                punchout(15,5,1,wallthick+(2*adjust)+12,2,"rectangle");
-        }
-        
-        // sata openings
-        if(side == "top" && type == "sata_power_vrec" && sata_punchout == true) {
-            translate([loc_x-3,loc_y+1.75,case_z-adjust-floorthick]) 
-                punchout(42,7.5,2,floorthick+(2*adjust)+6,3,"slot");
-        }
-    }
-}
-
-module vu_holder(vu_model,side,vesa,cheight) {
-
-//cheight = case_z+90;
-v_fillet = 3;
-    
-vu5_case_x_offset = 6.5;                // for uniform front vu5=6.5, vu7=20
-vu5_pcb_width = 121;
-vu5_pcb_height = 93.31;
-vu5_width = vu5_pcb_width + vu5_case_x_offset;
-vu5_height = vu5_pcb_height + 9.75;
-    
-vu7_case_x_offset = 20;                 // for uniform front vu5=6.5, vu7=20
-vu7_pcb_width = 172.90;
-vu7_pcb_height = 124.27;
-vu7_width = vu7_pcb_width + vu7_case_x_offset;
-vu7_height = vu7_pcb_height + 9.75;
-
-        difference() {
-        union() {
-            if(side == "right") {
-                translate([width-wallthick-gap,-(2*wallthick)-gap,0]) 
-                    cube([sidethick,depth+2*wallthick,cheight]);
-                // right tabs for vu5 attachment
-                if(case_style == "vu5") {
-                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-39,
-                        case_z+80]) rotate([90-vu_rotation[0],180,0]) 
-                            slab_r([((width-vesa)/2)+4.5,10,sidethick], [.1,.1,3,3]);
-                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-26,
-                        case_z+31.5]) rotate([90-vu_rotation[0],180,0]) 
-                            slab_r([((width-vesa)/2)+4.5,10,sidethick], [.1,.1,3,3]);
-                
-                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-41.85-adjust,
-                        case_z+79.25]) rotate([90-vu_rotation[0],180,0]) 
-                    difference() { 
-                        cube([sidethick,10,sidethick]);
-                        translate([0,-adjust,sidethick]) rotate([0,45,0]) 
-                            cube([2*sidethick,10+(2*adjust),sidethick]);
-                    }
-                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-28.85-adjust,
-                        case_z+30.75]) rotate([90-vu_rotation[0],180,0])
-                    difference() { 
-                        cube([sidethick,10,sidethick]);
-                        translate([0,-adjust,sidethick]) rotate([0,45,0]) 
-                            cube([2*sidethick,10+(2*adjust),sidethick]);
-                    }
-                }
-                // right tabs for vu7 attachment
-                if(case_style == "vu7") {
-                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick-1,depth-49.40,
-                        case_z+vu7_height-15]) rotate([90-vu_rotation[0],180,0]) 
-                            slab_r([((width-vesa)/2)+12,10,sidethick], [.1,.1,3,3]);
-                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick-1,depth-23.60,
-                        case_z+22.5]) rotate([90-vu_rotation[0],180,0]) 
-                            slab_r([((width-vesa)/2)+12,10,sidethick], [.1,.1,3,3]);
-                    
-                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-52.25,
-                        case_z+vu7_height-15.75]) rotate([90-vu_rotation[0],180,0]) 
-                            difference() { 
-                                cube([sidethick,10,sidethick]);
-                                translate([0,-adjust,sidethick]) rotate([0,45,0]) 
-                                    cube([2*sidethick,10+(2*adjust),sidethick]);
-                            }
-                    translate([(width/2)+((width-vesa)/2)+(vesa/2)-sidethick,depth-26.5,
-                        case_z+21.8]) rotate([90-vu_rotation[0],180,0])
-                            difference() { 
-                                cube([sidethick,10,sidethick]);
-                                translate([0,-adjust,sidethick]) rotate([0,45,0]) 
-                                    cube([2*sidethick,10+(2*adjust),sidethick]);
-                            }
-                }
-                // top rail
-                    translate([width-6.9-adjust,-gap,case_z-floorthick-.5])
-                    cube([4,depth-2*(wallthick+gap),2]);
-            }
-            if(side == "left") {
-                translate([-wallthick-gap-sidethick,-(2*wallthick)-gap,0]) 
-                    cube([sidethick,depth+2*wallthick,cheight]);
-                // left tabs for vu5 attachment
-                if(case_style == "vu5") {
-                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-3.5-adjust,depth-36.4,
-                        case_z+70]) rotate([90+vu_rotation[0],0,0]) 
-                            slab_r([((width-vesa)/2)+4,10, sidethick], [.1,.1,3,3]);
-                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-3.5-adjust,depth-23.5,
-                        case_z+22]) rotate([90+vu_rotation[0],0,0]) 
-                            slab_r([((width-vesa)/2)+4,10,sidethick], [.1,.1,3,3]);
-                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-3.5-adjust,depth-39.35+adjust,
-                        case_z+69.25]) rotate([90+vu_rotation[0],0,0])
-                            difference() { 
-                                cube([sidethick,10,sidethick]);
-                                translate([0,-adjust,sidethick]) rotate([0,45,0]) 
-                                    cube([2*sidethick,10+(2*adjust),2*sidethick]);
-                            }                
-                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-3.5-adjust,depth-26.4+adjust,
-                        case_z+21.25]) rotate([90+vu_rotation[0],0,0])  
-                        difference() { 
-                            cube([sidethick,10,sidethick]);
-                            translate([0,-adjust,sidethick]) rotate([0,45,0]) 
-                                cube([2*sidethick,10+(2*adjust),2*sidethick]);
-                        }
-                }           
-                // left tabs for vu7 attachment
-                if(case_style == "vu7") {
-                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-4.25-adjust,depth-46.85,
-                        case_z+vu7_height-24.5]) rotate([90+vu_rotation[0],0,0]) 
-                            slab_r([((width-vesa)/2),10, sidethick], [.1,.1,3,3]);
-                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-4.25-adjust,depth-21,
-                        case_z+13]) rotate([90+vu_rotation[0],0,0]) 
-                            slab_r([((width-vesa)/2),10,sidethick], [.1,.1,3,3]);
-                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-4-adjust,depth-49.75+adjust,
-                        case_z+vu7_height-25.25]) rotate([90+vu_rotation[0],0,0])
-                            difference() { 
-                                cube([sidethick,10,sidethick]);
-                                translate([0,-adjust,sidethick]) rotate([0,45,0]) 
-                                    cube([2*sidethick,10+(2*adjust),2*sidethick]);
-                            }                
-                    translate([-((width-vesa)/2)+(width/2)-(vesa/2)-4-adjust,depth-23.75+adjust,
-                        case_z+12.25]) rotate([90+vu_rotation[0],0,0])  
-                        difference() { 
-                            cube([sidethick,10,sidethick]);
-                            translate([0,-adjust,sidethick]) rotate([0,45,0]) 
-                                cube([2*sidethick,10+(2*adjust),2*sidethick]);
-                        }
-                }
-                // top rail
-                translate([-wallthick-gap-adjust,-gap,case_z-floorthick-.5]) 
-                        cube([4,depth-2*(wallthick+gap),2]);
-            }
-        }
-
-        if(side == "right") {
-            // vu5 shape and back cut
-            if(case_style == "vu5") {
-                translate([width+sidethick-2,-.6,case_z+sidethick+2.5]) 
-                    rotate([0,-90,0]) 
-                    linear_extrude(height = 2*sidethick) 
-                        polygon(points = [ [-sidethick,-sidethick-wallthick-5],
-                            [cheight-bottom_height-top_height-3,-sidethick-wallthick-5], 
-                            [cheight-bottom_height-top_height-3,depth-53], 
-                            [-sidethick,depth-33]]);
-                
-                translate([width-(sidethick/2),depth-8,case_z+(121/2)]) 
-                    rotate([vu_rotation[0],0,0]) 
-                        cube_fillet_inside([10,50,110],vertical=[v_fillet,v_fillet,v_fillet,v_fillet],
-                            top=[0,0,0,0],bottom=[3,3,3,3], $fn=90);
-                // tab holes
-                translate([width/2+(vesa/2)-3,depth-37,
-                    case_z+75]) rotate([90-vu_rotation[0],180,0]) cylinder(d=3, h=sidethick+1);
-                translate([width/2+(vesa/2)-3,depth-24,
-                    case_z+26.75]) rotate([90-vu_rotation[0],180,0]) cylinder(d=3, h=sidethick+1);
-            }
-            // vu7 shape and back cut
-            if(case_style == "vu7") {
-                translate([width+sidethick-2,-.6,case_z+sidethick+2.5]) 
-                    rotate([0,-90,0]) 
-                    linear_extrude(height = 2*sidethick) 
-                        polygon(points = [ [-sidethick,-sidethick-wallthick-5],
-                            [cheight-bottom_height-top_height-3,-sidethick-wallthick-5], 
-                            [cheight-bottom_height-top_height-3,depth-63], 
-                            [-sidethick,depth-33]]);
-                
-                translate([width-(sidethick/2),depth-10.5,case_z+70.5]) 
-                    rotate([vu_rotation[0],0,0]) 
-                        cube_fillet_inside([10,50,130],vertical=[v_fillet,v_fillet,v_fillet,v_fillet],
-                            top=[0,0,0,0],bottom=[3,3,3,3], $fn=90);
-                // tab holes
-                translate([width/2+(vesa/2)-10,depth-47,case_z+vu7_height-19.75]) 
-                    rotate([90-vu_rotation[0],180,0]) cylinder(d=3, h=sidethick+4);
-                translate([width/2+(vesa/2)-10,depth-21.25,case_z+18]) 
-                    rotate([90-vu_rotation[0],180,0]) cylinder(d=3, h=sidethick+4);
-            }
-            // bottom attachment holes                         
-            translate([width-wallthick-gap-adjust-5,wallthick+gap+10,
-                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adjust)+10);
-            translate([width-wallthick-gap-adjust-5,depth-wallthick-gap-10,
-                ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adjust)+10);
-        }
-
-        if(side == "left") {
-            // vu5 shape and back cut
-            if(case_style == "vu5") {
-                translate([-sidethick-adjust,-.6,case_z+sidethick+2.5]) 
-                    rotate([0,-90,0]) 
-                        linear_extrude(height = 2*sidethick) 
-                            polygon(points = [ [-sidethick,-sidethick-wallthick-5],
-                                [cheight-bottom_height-top_height-3,-sidethick-wallthick-5], 
-                                [cheight-bottom_height-top_height-3,depth-53], 
-                                [-sidethick,depth-33]]);
-                
-                translate([-wallthick-gap-(sidethick/2),depth-8,case_z+(121/2)]) 
-                    rotate([vu_rotation[0],0,0]) 
-                        cube_fillet_inside([10,50,110],vertical=[v_fillet,v_fillet,v_fillet,v_fillet],
-                            top=[0,0,0,0],bottom=[3,3,3,3], $fn=90);
-                // tab holes
-                translate([width/2-(vesa/2)-3,depth-36.75,case_z+75]) 
-                    rotate([90+vu_rotation[0],0,0]) cylinder(d=3, h=sidethick+1);
-                translate([width/2-(vesa/2)-3,depth-24.25,case_z+26.75]) 
-                    rotate([90+vu_rotation[0],0,0])  cylinder(d=3, h=sidethick+1);
-            }
-            // vu7 shape and back cut
-            if(case_style == "vu7") {
-                translate([-sidethick-adjust,-.6,case_z+sidethick+2.5]) 
-                    rotate([0,-90,0]) 
-                        linear_extrude(height = 2*sidethick) 
-                            polygon(points = [ [-sidethick,-sidethick-wallthick-5],
-                                [cheight-bottom_height-top_height-3,-sidethick-wallthick-5], 
-                                [cheight-bottom_height-top_height-3,depth-63], 
-                                [-sidethick,depth-33]]);
-                
-                translate([-wallthick-gap-(sidethick/2),depth-10.5,case_z+70.5]) 
-                    rotate([vu_rotation[0],0,0]) 
-                        cube_fillet_inside([10,50,130],vertical=[v_fillet,v_fillet,v_fillet,v_fillet],
-                            top=[0,0,0,0],bottom=[3,3,3,3], $fn=90);
-                // tab holes
-                translate([width/2-(vesa/2)-10,depth-48,case_z+vu7_height-19.75]) 
-                    rotate([90+vu_rotation[0],0,0]) cylinder(d=3, h=sidethick+4);
-                translate([width/2-(vesa/2)-10,depth-22.25,case_z+18]) 
-                    rotate([90+vu_rotation[0],0,0])  cylinder(d=3, h=sidethick+4);
-            }
-            // bottom attachment holes
-            translate([-sidethick-adjust-6,wallthick+gap+10,((bottom_height+floorthick)/2)-1]) 
-                rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adjust)+10);
-            if(depth >= 75) {
-                translate([-sidethick-adjust-6,depth-wallthick-gap-10,
-                    ((bottom_height+floorthick)/2)-1]) rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adjust)+10);
-            }
-            else {
-                translate([-sidethick-adjust-6,wallthick+gap+40.5,((bottom_height+floorthick)/2)-1])
-                    rotate([0,90,0]) cylinder(d=3, h=sidethick+(2*adjust)+10);                        
-            }
-        }
-    }
-}
-
-module parametric_move_add(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4) {
-    
-    // absolute no parametrics
-    if(parametric[1] == false && parametric[2] == false && parametric[3] == false) {        
-        add(type,loc_x,loc_y,loc_z,face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-    }
-    // x axis accessory parametrics
-    if(parametric[1] == true && parametric[2] == false && parametric[3] == false) {
-        if(parametric[0] == "case") {
-            add(type,loc_x+case_offset_x,loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            add(type,loc_x+pcb_loc_x,loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // y axis accessory parametrics
-    if(parametric[1] == false && parametric[2] == true && parametric[3] == false) {
-        if(parametric[0] == "case") {
-            add(type,loc_x,loc_y+case_offset_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            add(type,loc_x,loc_y+pcb_loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // z axis accessory parametrics
-    if(parametric[1] == false && parametric[2] == false && parametric[3] == true) {
-        if(parametric[0] == "case" && face == "top") {
-            add(type,loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face == "bottom") {
-            add(type,loc_x,loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face != "bottom" && face != "top") {
-            add(type,loc_x,loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            add(type,loc_x,loc_y,loc_z+pcb_loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "top") {
-            add(type,loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "bottom") {
-            add(type,loc_x,loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // xy axis accessory parametrics
-    if(parametric[1] == true && parametric[2] == true && parametric[3] == false) {
-        if(parametric[0] == "case") {
-            add(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            add(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // xz axis accessory parametrics
-    if(parametric[1] == true && parametric[2] == false && parametric[3] == true) {
-        if(parametric[0] == "case" && face == "top") {
-            add(type,loc_x+case_offset_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face == "bottom") {
-            add(type,loc_x+case_offset_x,loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face != "bottom" && face != "top") {
-            add(type,loc_x+case_offset_x,loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            add(type,loc_x+pcb_loc_x,loc_y,loc_z+pcb_loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "top") {
-            add(type,loc_x+pcb_loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "bottom") {
-            add(type,loc_x+pcb_loc_x,loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // yz axis accessory parametrics
-    if(parametric[1] == false && parametric[2] == true && parametric[3] == true) {
-        if(parametric[0] == "case" && face == "top") {
-            add(type,loc_x,loc_y+case_offset_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face == "bottom") {
-            add(type,loc_x,loc_y+case_offset_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face != "bottom" && face != "top") {
-            add(type,loc_x,loc_y+case_offset_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            add(type,loc_x,loc_y+pcb_loc_y,loc_z+pcb_loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "top") {
-            add(type,loc_x,loc_y+pcb_loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "bottom") {
-            add(type,loc_x,loc_y+pcb_loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // xyz axis accessory parametrics
-    if(parametric[1] == true && parametric[2] == true && parametric[3] == true) {
-        if(parametric[0] == "case" && face == "top") {
-            add(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face == "bottom") {
-            add(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face != "bottom" && face != "top") {
-            add(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            add(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+pcb_loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "top") {
-            add(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "bottom") {
-            add(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-}
-
-
-
-module parametric_move_sub(type,loc_x,loc_y,loc_z,face,rotation,parametric,
-                            size_x,size_y,size_z,data_1,data_2,data_3,data_4) {
-    
-    // absolute no parametrics
-    if(parametric[1] == false && parametric[2] == false && parametric[3] == false) {        
-        sub(type,loc_x,loc_y,loc_z,face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-    }
-    // x axis accessory parametrics
-    if(parametric[1] == true && parametric[2] == false && parametric[3] == false) {
-        if(parametric[0] == "case") {
-            sub(type,loc_x+case_offset_x,loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            sub(type,loc_x+pcb_loc_x,loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // y axis accessory parametrics
-    if(parametric[1] == false && parametric[2] == true && parametric[3] == false) {
-        if(parametric[0] == "case") {
-            sub(type,loc_x,loc_y+case_offset_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            sub(type,loc_x,loc_y+pcb_loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // z axis accessory parametrics
-    if(parametric[1] == false && parametric[2] == false && parametric[3] == true) {
-        if(parametric[0] == "case" && face == "top") {
-            sub(type,loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face == "bottom") {
-            sub(type,loc_x,loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face != "bottom" && face != "top") {
-            sub(type,loc_x,loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            sub(type,loc_x,loc_y,loc_z+pcb_loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "top") {
-            sub(type,loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "bottom") {
-            sub(type,loc_x,loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // xy axis accessory parametrics
-    if(parametric[1] == true && parametric[2] == true && parametric[3] == false) {
-        if(parametric[0] == "case") {
-            sub(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            sub(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // xz axis accessory parametrics
-    if(parametric[1] == true && parametric[2] == false && parametric[3] == true) {
-        if(parametric[0] == "case" && face == "top") {
-            sub(type,loc_x+case_offset_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face == "bottom") {
-            sub(type,loc_x+case_offset_x,loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face != "bottom" && face != "top") {
-            sub(type,loc_x+case_offset_x,loc_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            sub(type,loc_x+pcb_loc_x,loc_y,loc_z+pcb_loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "top") {
-            sub(type,loc_x+pcb_loc_x,loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "bottom") {
-            sub(type,loc_x+pcb_loc_x,loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // yz axis accessory parametrics
-    if(parametric[1] == false && parametric[2] == true && parametric[3] == true) {
-        if(parametric[0] == "case" && face == "top") {
-            sub(type,loc_x,loc_y+case_offset_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face == "bottom") {
-            sub(type,loc_x,loc_y+case_offset_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face != "bottom" && face != "top") {
-            sub(type,loc_x,loc_y+case_offset_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            sub(type,loc_x,loc_y+pcb_loc_y,loc_z+pcb_loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "top") {
-            sub(type,loc_x,loc_y+pcb_loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "bottom") {
-            sub(type,loc_x,loc_y+pcb_loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-    // xyz axis accessory parametrics
-    if(parametric[1] == true && parametric[2] == true && parametric[3] == true) {
-        if(parametric[0] == "case" && face == "top") {
-            sub(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face == "bottom") {
-            sub(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "case" && face != "bottom" && face != "top") {
-            sub(type,loc_x+case_offset_x,loc_y+case_offset_y,loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc") {
-            sub(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+pcb_loc_z,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "top") {
-            sub(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+case_offset_tz+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-        if(parametric[0] == "sbc-case_z" && face == "bottom") {
-            sub(type,loc_x+pcb_loc_x,loc_y+pcb_loc_y,loc_z+case_offset_bz,
-                face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4);
-        }
-    }
-}
-
-
-/* indent module */
-module indent(loc_x,loc_y,loc_z,rotation,side,class,type,wallthick,gap,floorthick,pcb_z) {
-    
-    adjust = .01;
-    $fn=90;
-    
-    // hdmi indent
-    if(class == "video" && type == "hdmi_a" && side == "top" && rotation == 0) {
-        place(loc_x+2.375,-(wallthick+gap)+wallthick/2,loc_z+3.75,12,10,rotation,side) 
-             rotate([90,0,0]) slot(12,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_a" && side == "top" && rotation == 90) {
-        place(-gap-wallthick/2,loc_y,loc_z+3.75,12,10,rotation,side)
-             rotate([90,0,0]) slot(12,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_a" && side == "top" && rotation == 180) {
-        place(loc_x,depth-(wallthick+gap)-10-wallthick/2,loc_z+3.75,12,10,rotation,side)
-             rotate([90,0,0]) slot(12,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_a" && side == "top" && rotation == 270) {
-        place(width-(wallthick+gap)-10-wallthick/2,loc_y+2.375,loc_z+3.75,12,10,rotation,side)
-             rotate([90,0,0]) slot(12,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_a" && side == "bottom" && rotation == 0) {
-        place(loc_x,-(wallthick+gap)+wallthick/2,loc_z-pcb_z-3.75,12,10,rotation,side)
-             rotate([90,0,0]) slot(12,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_a" && side == "bottom" && rotation == 90) {
-        place(width-(wallthick+gap)-10-wallthick/2,loc_y,loc_z-5.25,12,10,rotation,side)
-             rotate([90,0,0]) slot(12,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_a" && side == "bottom" && rotation == 180) {
-        place(loc_x+2.375,depth-(wallthick+gap)-10-wallthick/2,loc_z-pcb_z-3.75,12,10,rotation,side)
-             rotate([90,0,0]) slot(12,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_a" && side == "bottom" && rotation == 270) {
-        place(-gap-wallthick/2,loc_y+1.75,loc_z-pcb_z-3.75,12,10,rotation,side)
-             rotate([90,0,0]) slot(12,10,wallthick);
-    }
-    // hdmi micro indent
-    if(class == "video" && type == "hdmi_micro" && rotation == 0 && side == "top") {
-        place(loc_x-.5,-(wallthick+gap)+wallthick/2,loc_z+1.5,6,8,rotation,side) 
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 90 && side == "top") {
-        place(-gap-wallthick/2,loc_y+1.5,loc_z+1.5,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 180 && side == "top") {
-        place(loc_x+1,depth-(wallthick+gap)-8-wallthick/2,loc_z+1.5,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 270 && side == "top") {
-        place(width-(wallthick+gap)-8-wallthick/2,loc_y-.75,loc_z+1.5,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 0 && side == "bottom") {
-        place(loc_x+1.5,-(wallthick+gap)+wallthick/2,loc_z-3,6,8,rotation,side) 
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 90 && side == "bottom") {
-        place(width-(wallthick+gap)-8-wallthick/2,loc_y+1.25,loc_z-3,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 180 && side == "bottom") {
-        place(loc_x-1,depth-(wallthick+gap)-8-wallthick/2,loc_z-3,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 270 && side == "bottom") {
-        place(-gap-wallthick/2,loc_y-.5,loc_z-3,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    // hdmi mini indent
-    if(class == "video" && type == "hdmi_mini" && rotation == 0 && side == "top") {
-        place(loc_x+.5,loc_y-gap-wallthick/2+1,loc_z+1.5,6,10,rotation,side) 
-            rotate([90,0,0]) slot(6,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 90 && side == "top") {
-        place(loc_x-wallthick/2,loc_y+3.5,loc_z+1.5,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 180 && side == "top") {
-        place(loc_x+4.5,loc_y-wallthick/2,loc_z+1.5,6,10,rotation,side)
-            rotate([90,0,0]) slot(6,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 270 && side == "top") {
-        place(loc_x+wallthick/2,loc_y+1.5,loc_z+1.5,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 0 && side == "bottom") {
-        place(loc_x+4.5,loc_y-gap-wallthick/2+1,loc_z-3,6,10,rotation,side) 
-            rotate([90,0,0]) slot(6,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 90 && side == "bottom") {
-        place(loc_x+wallthick/2,loc_y+3.5,loc_z-3,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 180 && side == "bottom") {
-        place(loc_x+.5,loc_y-wallthick/2,loc_z-3,6,10,rotation,side)
-            rotate([90,0,0]) slot(6,10,wallthick);
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 270 && side == "bottom") {
-        place(loc_x-wallthick/2,loc_y+1.5,loc_z-3,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    // power plug indent
-    if(type == "pwr5.5_7.5x11.5" && rotation == 0 && side == "top") {
-        place(loc_x+3.75,-(wallthick+gap)+wallthick/2,loc_z+6.25,10,10,rotation,side) 
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(type == "pwr5.5_7.5x11.5" && rotation == 90 && side == "top") {
-        place(-gap-wallthick/2,loc_y-6.25,loc_z+6.25,10,10,rotation,side) 
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(type == "pwr5.5_7.5x11.5" && rotation == 180 && side == "top") {
-        place(loc_x-6.5,depth-10-(wallthick+gap)-wallthick/2,loc_z+6.25,10,10,rotation,side) 
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(type == "pwr5.5_7.5x11.5" && rotation == 270 && side == "top") {
-        place(width-(wallthick+gap)-10-wallthick/2,loc_y+3.75,loc_z+6.25,10,10,rotation,side) 
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(type == "pwr2.5_5x7.5" && rotation == 0 && side == "top") {
-        place(loc_x+2.75,-(wallthick+gap)+wallthick/2,loc_z+2.1,7,7,rotation,side) 
-            rotate([90,0,0]) cylinder(d=7, h=wallthick);
-    }
-    if(type == "pwr2.5_5x7.5" && rotation == 90 && side == "top") {
-        place(-(wallthick+gap)+wallthick/2,loc_y-4.5,loc_z+2,7,7,rotation,side) 
-            rotate([90,0,0]) cylinder(d=7, h=wallthick);
-    }
-    if(type == "pwr2.5_5x7.5" && rotation == 180 && side == "top") {
-        place(loc_x-4.5,depth-(wallthick+gap)-7-wallthick/2,loc_z+2,7,7,rotation,side) 
-            rotate([90,0,0]) cylinder(d=7, h=wallthick);
-    }
-    if(type == "pwr2.5_5x7.5" && rotation == 270 && side == "top") {
-        place(width-(wallthick+gap)-7-wallthick/2,loc_y+2.5,loc_z+2,7,7,rotation,side) 
-            rotate([90,0,0]) cylinder(d=7, h=wallthick);
-    }
-    // micro usb indent
-    if(class == "usb2" && type == "micro" && rotation == 0 && side == "top") {
-        place(loc_x-.5,-(wallthick+gap)+wallthick/2,loc_z+1.9,6,8,rotation,side) 
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usb2" && type == "micro" && rotation == 90 && side == "top") {
-        place(-gap-wallthick/2,loc_y+1.5,loc_z+1.9,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-
-    }
-    if(class == "usb2" && type == "micro" && rotation == 180 && side == "top") {
-        place(loc_x+1.5,depth-(wallthick+gap)-8-wallthick/2,loc_z+1.9,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usb2" && type == "micro" && rotation == 270 && side == "top") {
-        place(width-(wallthick+gap)-8-wallthick/2,loc_y-.5,loc_z+1.9,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usb2" && type == "micro" && rotation == 0 && side == "bottom") {
-        place(loc_x+1.5,-(wallthick+gap)+wallthick/2,loc_z-3.25,6,8,rotation,side) 
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usb2" && type == "micro" && rotation == 90 && side == "bottom") {
-        place(width-(wallthick+gap)-8-wallthick/2,loc_y+1.5,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-
-    }
-    if(class == "usb2" && type == "micro" && rotation == 180 && side == "bottom") {
-        place(loc_x-.5,depth-(wallthick+gap)-8-wallthick/2,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usb2" && type == "micro" && rotation == 270 && side == "bottom") {
-        place(-gap-wallthick/2,loc_y-.5,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    // single horizontal usbc indent
-    if(class == "usbc" && type == "single_horizontal" && rotation == 0 && side == "top") {
-        place(loc_x+.5,-(wallthick+gap)+wallthick/2,loc_z+1.75,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 90 && side == "top") {
-        place(-gap-wallthick/2,loc_y+2.5,loc_z+1.75,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 180 && side == "top") {
-        place(loc_x+2.5,depth-(wallthick+gap)-8-wallthick/2,loc_z+2,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 270 && side == "top") {
-        place(width-(wallthick+gap)-8-wallthick/2,loc_y+.5,loc_z+1.75,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 0 && side == "bottom") {
-        place(loc_x+2.75,-(wallthick+gap)+wallthick/2,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 90 && side == "bottom") {
-        place(width-(wallthick+gap)-8-wallthick/2,loc_y+2.5,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick-(wallthick+gap)+wallthick/2);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 180 && side == "bottom") {
-        place(loc_x+.5,depth-(wallthick+gap)-8-wallthick/2,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 270 && side == "bottom") {
-        place(-gap-wallthick/2,loc_y+.5,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,wallthick);
-    }
-    // audio jack indent
-    if(class == "audio" && type == "jack_3.5" && rotation == 0 && side == "top") {
-        place(loc_x+3.15,-(wallthick+gap)+wallthick/2,loc_z+2,8,8,rotation,side) 
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(class == "audio" && type == "jack_3.5" && rotation == 90 && side == "top") {
-        place(-gap-wallthick/2,loc_y-4.6,loc_z+2,8,8,rotation,side)
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(class == "audio" && type == "jack_3.5" && rotation == 180 && side == "top") {
-        place(loc_x-4.6,depth-(wallthick+gap)-8-wallthick/2,loc_z+2,8,8,rotation,side) 
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(class == "audio" && type == "jack_3.5" && rotation == 270 && side == "top") {
-        place(width-(wallthick+gap)-8-wallthick/2,loc_y+3.15,loc_z+2,8,8,rotation,side)
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(class == "audio" && type == "jack_3.5" && rotation == 0 && side == "bottom") {
-        place(loc_x-4.6,-(wallthick+gap)+wallthick/2,loc_z-3.5,8,8,rotation,side) 
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(class == "audio" && type == "jack_3.5" && rotation == 90 && side == "bottom") {
-        place(width-(wallthick+gap)-8-wallthick/2,loc_y-4.6,loc_z-3.5,8,8,rotation,side)
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(class == "audio" && type == "jack_3.5" && rotation == 180 && side == "bottom") {
-        place(loc_x+3.15,depth-(wallthick+gap)-8-wallthick/2,loc_z-3.5,8,8,rotation,side) 
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-    if(class == "audio" && type == "jack_3.5" && rotation == 270 && side == "bottom") {
-        place(-gap-wallthick/2,loc_y+3.15,loc_z-3.5,8,8,rotation,side)
-            rotate([90,0,0]) cylinder(d=10, h=wallthick);
-    }
-}
+}
\ No newline at end of file
diff --git a/sbc_case_builder_library.scad b/sbc_case_builder_library.scad
index 6f0b339..1fb335f 100644
--- a/sbc_case_builder_library.scad
+++ b/sbc_case_builder_library.scad
@@ -1,9 +1,5 @@
 /*
     SBC Case Builder Library Copyright 2022 Edward A. Kisiel hominoid@cablemi.com
-    
-    Contributions:
-    hk_vu8m(brackets),u_bracket(),screw(),m1_hdmount() Copyright 2022 Tomek Szczęsny, mctom @ www.forum.odroid.com
-    vent_hex(), vent_panel_hex()                       Copyright 2023 Tomek Szczęsny, mctom @ www.forum.odroid.com
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -19,4364 +15,36 @@
     Code released under GPLv3: http://www.gnu.org/licenses/gpl.html
 
     20220212 version 1.1.0 SBC Case Builder Library
-    20220220 version 1.1.1 added fan_cover(size, thick), hd_mount(hd,orientation), hd25_tab(side)
-                           hd35_tab(side), hd_bottom_holes(hd,orientation,thick)
-                           adjusted hd35(), other fixes and maintenance
-    20220227 version 1.1.2 adjusted hd25(), hd35(), updated hd_mount(hd,orientation,position,side),
-                           hd_bottom_holes(hd,orientation,position,side,thick), hd25_tab(side), hd35_tab(side)
-                           added hd25_vtab(side), hc4_oled() rotated 180, 
-                           added pcb_z to mask(loc_x,loc_y,rotation,side,class,type,case_z,wallthick,gap,floorthick,pcb_z)
-                           adjusted hdmi_open() for bottom placment, added hc4_oled_holder(side,floorthick)
-                           added buttom to mask(),
-    20220306 version 1.1.3 added access_port(size[],orientation), access_cover(size[],orientation), h2_netcard(), rj45(), 
-                           button(style, diameter, height), button_plunger(style, diameter, height), button_top(style, 
-                           diameter, height), button_clip(style), fixed momentary_6x6x4 mask, adjusted masks,
-    20220312 version 1.2.0 rotated slot in hd25_vtab(side),adjusted hc4_oled_holder(side,floorthick), adjust stud(), 
-                           added hk35_lcd(),header_5x1(),momentary45x15  
-    20220320 version 1.2.1 added hk_boom(speakers,orientation), hk_boom_speaker(side,speaker,pcb), boom_speaker()   
-                           replaced header5x1() with header(pins), added encl_header_12(), micro2pin(), audio_jack35(), 
-                           capacitor(diameter, height), ic(size), added hk_boom_grill(), boom_speaker_holder(tolerance),
-                           pcb_holder(size,wallthick), hk_uart(), usb_micro(), uart_micro(), boom_vring(tolerance), 
-                           added tolerance to batt_holder(tolerance)
-    20220406 version 1.2.2 hk_wb2(), hk_vu7c(gpio_ext, tabs), hdmi_a(), header_f(pins, height), pcb_pad(pads), 
-                           embelished boom_speaker(), changed boom_speaker_holder(style, tolerance), added boom_speaker_strap(),
-                           adjusted access_port(), access_cover(), added @mctom's hk_vu8m(bracket), u_bracket(), spacer()
-    20220515 version 1.2.3 removed spacer(); added screw(); modified hk_vu8m(); added m1_hdmount(); added hdd35_25holder(length)
-                           printer friendly punchout(),added remaining mask() entries, standardized mask()
-    20221005 version 2.0.0 increased mask projection for ir_1, added mask for usb2 and usb3 single_horizontal_a, hdmi_micro,
-                           video-hdmi_mini,microsdcard,momentary_7x3x3_90,rj45_single_short, added subtraction microusb and sphere
-    20221011 Version 2.0.1  adjusted cases and accessories, updated README.md and SBC_Case_Builder_Cases.gif
-    20221101 version 2.0.2 added hdmi_a_vertical mask, increased jack_3.5 mask dia.to 6mm, lowered hdmi_a_vertical mask by 2mm,
-                           added mask for microsdcard2
-    20221207 version 2.0.3 added double_stacked_usb3-usb2, hd35_vtab(side) and supporting code
-    20231110 version 2.0.4 added h3_port_extender(style, mask = false), hk_pwr_button(mask = false), keyhole(keysize, mask = false),
-                           vent_hex(cells_x, cells_y, cell_size, cell_spacing, orientation) and supporting code, dsub(dsubsize, mask = false),
-                           vent_panel_hex(x, y, thick, cell_size, cell_spacing, border, borders), 
-                           added nut_holder(nut, style, dia_x, dia_y, height), fixed access_port and access_cover 180 rotation
-                           in portrait and landscape, added h3_port_extender_holder(part,offset), cableholder_spacer()
-    20231115 Version 2.0.5 added hex vent and new component openings
-    20231211 Version 2.0.6 added vu8s, hk_m1s_case_holes, hk_m1s_ups(), proto_m1s(), proto_ups(), battery_clip(bat_dia = 18.4), 
-                           battery(type), pcb_pad(pads = 1, style = "round"), led(ledcolor = "red"), m_insert(type="M3", icolor = "#ebdc8b"), 
-                           usbc().
-
-        
-    see https://github.com/hominoids/SBC_Case_Builder
-    
-    place(x,y,z,size_x,size_y,rotation,side)
-    add(type,loc_x,loc_y,loc_z,size_x,size_y,size_z,rotation,face,side,case_z,data_1,data_2,data_3,data_4)
-    sub(type,loc_x,loc_y,loc_z,size_x,size_y,size_z,rotation,face,side,case_z,data_1,data_2,data_3,data_4)
-    art(scale_d1,type,size_z)
-    screw(screw[d, l, style])
-    slab(size, radius)
-    slab_r(size, radius)
-    slot(hole,length,depth)
-    standoff(standoff[radius,height,holesize,supportsize,supportheight,sink,style,i_dia,i_depth])
-    button(style, diameter, height)
-    button_assembly(style, diameter, height
-    button_plunger(style, diameter, height)
-    button_top(style, diameter, height)
-    button_clip(style)
-    feet (height)
-    pcb_holder(size,wallthick)
-    batt_holder(tolerance)
-    uart_holder()
-    uart_strap ()
-    fan_cover(size, thick)
-    hc4_oled_holder(side,floorthick)
-    hd_mount(hd,orientation,position,side)
-    hd25_tab(side)
-    hd25_vtab(side)
-    hd35_tab(side)
-    hd35_vtab(side)
-    hd_bottom_holes(hd,orientation,position,side,thick)
-    hd25(height)
-    hd35()
-    hdd35_25holder(length)
-    hk_wb2()
-    hc4_oled()
-    h2_netcard()
-    hk35_lcd()
-    hk_uart()
-    hk_vu7c(gpio_ext, tabs)
-    hk_vu8m(bracket)
-    u_bracket()
-    m1_hdmount()
-    hdmi_a()
-    header_f(pins, height)
-    pcb_pad(pads)
-    usb_micro()
-    uart_micro()
-    rj45()
-    header(pins)
-    encl_header_12()
-    micro2pin()
-    audio_jack35()
-    capacitor(diameter, height)
-    ic(size)
-    hk_speaker()
-    hk_boom(speakers,orientation)
-    hk_boom_speaker(side,speaker,pcb)
-    boom_speaker()
-    hk_boom_grill(style,thick)
-    boom_speaker_holder(style,tolerance)
-    boom_speaker_strap()
-    boom_vring(tolerance)
-    access_port(size[],orientation)
-    access_cover(size[],orientation)
-    hdmi_open(hdmi_style)
-    microusb_open()
-    fan_mask(size, thick, style)
-    mask(loc_x,loc_y,rotation,side,class,type,case_z,wallthick,gap,floorthick,pcb_z)
-    punchout(width,depth,gap,thick,fillet,shape)
-    h3_port_extender(style, mask = false)
-    h3_port_extender_holder(part,offset)
-    hk_pwr_button(mask = false)
-    keyhole(keysize, mask = false)
-    vent_hex(cells_x, cells_y, thickness, cell_size, cell_spacing, orientation)
-    vent_panel_hex(x, y, thick, cell_size, cell_spacing, border, borders);
-    dsub(dsubsize, mask = false)
-    nut_holder(nut, style, dia_x, dia_y, height)
-    cableholder_spacer()
-    hk_m1s_case_holes
-    hk_m1s_ups()
-    proto_m1s()
-    proto_ups()
-    battery_clip(bat_dia = 18.4)
-    battery(type)
-    pcb_pad(pads = 1, style = "round")
-    led(ledcolor = "red")
-    m_insert(type="M3", icolor = "#ebdc8b")
-    usbc()
-
-*/
-
-use <./lib/fillets.scad>;
-
-/* placement module *must be first* for children() */
-module place(x,y,z,size_x,size_y,rotation,side) {
-
-    if (side == "top") {
-        if (rotation == 0 || rotation == 90 || rotation == 180 || rotation == 270) {    
-            if ((rotation >= 0 && rotation < 90) || (rotation < -270 && rotation > -360))
-                translate([x,y,z]) rotate([0,0,-rotation]) children();
-
-            if ((rotation >= 90 && rotation < 180) || (rotation < -180 && rotation >= -270))
-                translate([x,y+size_x,z]) rotate([0,0,-rotation]) children();
-           
-            if ((rotation >= 180 && rotation < 270) || (rotation < -90 && rotation >= -180))
-                translate([x+size_x,y+size_y,z]) rotate([0,0,-rotation]) children(0);
-           
-            if ((rotation >= 270 && rotation < 360) || (rotation < 0 && rotation >= -90))
-                translate([x+size_y,y,z]) rotate([0,0,-rotation]) children(); }
-        else {
-            translate([x,y,z]) rotate([0,0,-rotation]) children();            
-        }
-    }   
-    if (side == "bottom") {
-        if (rotation == 0 || rotation == 90 || rotation == 180 || rotation == 270) {   
-            if ((rotation >= 0 && rotation < 90) || (rotation < -270 && rotation > -360))
-                translate([x+size_x,y,z]) rotate([0,180,rotation]) children();
-           
-            if ((rotation >= 90 && rotation < 180) || (rotation < -180 && rotation >= -270))
-                translate([x+size_y,y+size_x,z]) rotate([0,180,rotation]) children();
-               
-            if ((rotation >= 180 && rotation < 270) || (rotation < -90 && rotation >= -180))
-                translate([x,y+size_y,z]) rotate([0,180,rotation]) children();
-           
-            if ((rotation >= 270 && rotation < 360) || (rotation < 0 && rotation >= -90))
-                translate([x,y,z]) rotate([0,180,rotation]) children(); }
-        else {
-            translate([x,y,z]) rotate([0,180,rotation]) children();
-            
-        }
-    }    
-    children([1:1:$children-1]);
-}
-
-
-/* addition module */
-module add(type,loc_x,loc_y,loc_z,face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4) {
-    
-    if(type == "rectangle") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) slab_r([size_x,size_y,size_z],data_4);
-    }
-    if(type == "round") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) cylinder(d=size_x,h=size_z);
-    }
-    if(type == "slot") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) slot(size_x,size_y,size_z);
-    }
-    if(type == "text") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) linear_extrude(height = size_z) text(data_3, size=data_1);
-    }    
-    if(type == "art") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) art(data_1,data_2,data_3); 
-    }
-    if(type == "button") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) button(data_3,[size_x,size_y,size_z],data_4,data_1); 
-    }
-    if(type == "button_top") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) button_assembly(data_3,size_x,size_z); 
-    }
-    if(type == "pcb_holder") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) pcb_holder([size_x,size_y,size_z],data_1);
-    }
-    if(type == "batt_holder") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) batt_holder(data_1);
-    }
-    if(type == "uart_holder") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) uart_holder();
-    }
-    if(type == "uart_strap") {
-        color("grey",1) translate([loc_x,loc_y,loc_z]) rotate(rotation) uart_strap();
-    }
-    if(type == "standoff") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) standoff(data_4);
-    }
-    if(type == "hd_holder") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd_mount(data_1,data_3,"horizontal","none"); 
-    }
-    if(type == "hd_vertleft") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd_mount(data_1,data_3,"vertical","left"); 
-    }
-    if(type == "hd_vertright") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd_mount(data_1,data_3,"vertical","right"); 
-    }
-    if(type == "hd25") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd25(data_1); 
-    }
-    if(type == "hd35") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hd35(); 
-    }
-    if(type == "hk_wb2") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_wb2(); 
-    }
-    if(type == "hc4_oled") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hc4_oled(); 
-    }
-    if(type == "hc4_oled_holder") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hc4_oled_holder(face,size_z); 
-    }
-    if(type == "h2_netcard") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) h2_netcard(); 
-    }
-    if(type == "hk_lcd35") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk35_lcd(); 
-    }
-    if(type == "hk_m1s_ups") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_m1s_ups(); 
-    }
-    if(type == "hk_uart") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_uart(); 
-    }
-    if(type == "hk_vu7c") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_vu7c(data_1,data_2); 
-    }
-    if(type == "hk_boom") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_boom(data_1,data_3); 
-    }
-    if(type == "boom_speaker") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_boom_speaker(data_3,true,data_1); 
-    }
-    if(type == "boom_grill") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_boom_grill(data_3,size_z); 
-    }
-    if(type == "boom_speaker_holder") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) boom_speaker_holder(data_1); 
-    }
-    if(type == "hk_speaker") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_speaker(); 
-    }
-    if(type == "fan_cover") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) fan_cover(size_x, size_z);
-    }
-    if(type == "vent_panel_hex") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) vent_panel_hex(x=size_x, y=size_y, thick=size_z, 
-            cell_size=data_1, cell_spacing=data_2, border=data_4, borders=data_3);
-    }
-    if(type == "feet") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) feet(size_x, size_z);
-    }
-    if(type == "access_port") {
-        if(rotation[2] == 180) {
-            translate([loc_x+size_x,loc_y+size_y,loc_z])  rotate(rotation) access_port([size_x,size_y,size_z],data_3);
-        }
-        else {
-            translate([loc_x,loc_y,loc_z])  rotate(rotation) access_port([size_x,size_y,size_z],data_3);
-        }
-    }
-    if(type == "access_cover") {
-        if(rotation[2] == 180) {
-            color("grey",1) translate([loc_x+size_x,loc_y+size_y,loc_z])  rotate(rotation) access_cover([size_x,size_y,size_z],data_3);
-        }
-        else {
-            color("grey",1) translate([loc_x,loc_y,loc_z]) rotate(rotation) access_cover([size_x,size_y,size_z],data_3);
-        }
-    }
-    if(type == "boom_vring") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) boom_vring(data_1);
-    }
-    if(type == "h3_port_extender") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) h3_port_extender(data_3); 
-    }
-    if(type == "h3_port_extender_holder") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) h3_port_extender_holder(data_3,data_1); 
-    }
-    if(type == "hk_pwr_button") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_pwr_button(); 
-    }
-    if(type == "keyhole") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) keyhole(data_4); 
-    }
-    if(type == "dsub") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) dsub(data_4); 
-    }
-    if(type == "nut_holder") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) nut_holder(data_1, data_2, size_x, size_y, size_z); 
-    }
-    if(type == "standoff") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) standoff(data_4);
-    }
-}
-
-
-/* subtractive module */
-module sub(type,loc_x,loc_y,loc_z,face,rotation,size_x,size_y,size_z,data_1,data_2,data_3,data_4) {
-
-    if(type == "rectangle") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) slab_r([size_x,size_y,size_z],data_4);
-    }
-    if(type == "round") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) cylinder(d=size_x,h=size_z);
-    }
-    if(type == "slot") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) slot(size_x,size_y,size_z);
-    }
-    if(type == "text") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) linear_extrude(height = size_z) text(data_3, size=data_1);
-    }
-    if(type == "art") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) art(data_1,data_2,data_3); 
-    }
-    if(type == "button") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) button(data_3,[size_x,size_y,size_z],data_4,data_1); 
-    }
-    if(type == "hd_holes") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) hd_bottom_holes(data_1,data_3,"none","none",data_2);
-    }    
-    if(type == "hd_vertleft_holes") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) hd_bottom_holes(data_1,data_3,"vertical","left",data_2);
-    }    
-    if(type == "hd_vertright_holes") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) hd_bottom_holes(data_1,data_3,"vertical","right",data_2);
-    }    
-    if(type == "hk_fan_top") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) hk_fan_top();
-    }    
-    if(type == "punchout") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) punchout(size_x,size_y,data_1,size_z,data_2,data_3);
-    }    
-    if(type == "fan") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) fan_mask(size_x, size_z, data_1);
-    }
-    if(type == "vent") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) vent(size_x,size_y,size_z,data_4,data_1,data_2,data_3);
-    }
-    if(type == "vent_hex") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) vent_hex(size_x,size_y,size_z,data_1,data_2,data_3);
-    }
-    if(type == "microusb") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) microusb_open();
-    }
-    if(type == "sphere") {
-        translate([loc_x,loc_y,loc_z])  rotate(rotation) sphere(d=size_x);
-    }
-    if(type == "keyhole") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) keyhole(data_4, true); 
-    }
-    if(type == "h3_port_extender") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) h3_port_extender(data_3, true); 
-    }
-    if(type == "hk_pwr_button") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) hk_pwr_button(true); 
-    }
-    if(type == "dsub") {
-        translate([loc_x,loc_y,loc_z]) rotate(rotation) dsub(data_4, true); 
-    }
-}
-
-
-/* art work module */
-module art(scale_d1,size_z,type) {
-    
-    linear_extrude(height = size_z) import(file = type, scale=scale_d1);
-
-}
-
-// General purpose screw
-// screw(screw[d, l, style])
-// 	d - thread diameter
-// 	l - thread length
-// 	style - screw head style
-//
-// 	Styles:
-// 	0 - Mushroom head, 5mm diameter
-
-module screw(screw_type) {
-    d = screw_type[0];
-    l = screw_type[1];
-    style = screw_type[2];
-
-    // Head
-        if(style == 0) {
-            difference() {
-                translate([  0,  0, -0.3]) sphere(2.7);
-                translate([-10,-10,-10]) cube([20,20,10]);
-                translate([-10,-10,  2]) cube([20,20,10]);
-            }
-        }
-    // Thread
-        rotate([180,0,0]) cylinder(d=d, h=l);
-}
-
-/* slab module */
-module slab(size, radius) {
-    
-    x = size[0];
-    y = size[1];
-    z = size[2];   
-    linear_extrude(height=z)
-    hull() {
-        translate([0+radius ,0+radius, 0]) circle(r=radius);	
-        translate([0+radius, y-radius, 0]) circle(r=radius);	
-        translate([x-radius, y-radius, 0]) circle(r=radius);	
-        translate([x-radius, 0+radius, 0]) circle(r=radius);
-    }  
-}
-
-
-/* multi-radius round slab */
-module slab_r(size, radius) {
-    
-    x = size[0];
-    y = size[1];
-    z = size[2];
-    r0 = radius[0];
-    r1 = radius[1];
-    r2 = radius[2];
-    r3 = radius[3];
-    
-    linear_extrude(height=z)
-    hull() {
-        translate([0+radius[0] ,0+radius[0], 0]) circle(r=radius[0]);	
-        translate([0+radius[1], y-radius[1], 0]) circle(r=radius[1]);	
-        translate([x-radius[2], y-radius[2], 0]) circle(r=radius[2]);	
-        translate([x-radius[3], 0+radius[3], 0]) circle(r=radius[3]);
-    }  
-}
-
-
-/* slot module */
-module slot(hole,length,depth) {
-    
-    hull() {
-        translate([0,0,0]) cylinder(d=hole,h=depth);
-        translate([length,0,0]) cylinder(d=hole,h=depth);        
-        }
-    } 
-
-
-/* standoff module
-    standoff(standoff[radius,height,holesize,supportsize,supportheight,sink,style,reverse,insert_e,i_dia,i_depth])
-        sink=0 none
-        sink=1 countersink
-        sink=2 recessed hole
-        sink=3 nut holder
-        sink=4 blind hole
-        
-        style=0 hex shape
-        style=1 cylinder
-*/
-module standoff(stand_off){
-
-    radius = stand_off[0];
-    height = stand_off[1];
-    holesize = stand_off[2];
-    supportsize = stand_off[3];
-    supportheight = stand_off[4];
-    sink = stand_off[5];
-    style = stand_off[6];
-    reverse = stand_off[7];
-    insert_e = stand_off[8];
-    i_dia = stand_off[9];
-    i_depth = stand_off[10];
-    
-    adjust = 0.1;
-    
-    difference (){ 
-        union () { 
-            if(style == 0 && reverse == 0) {
-                rotate([0,0,30]) cylinder(d=radius*2/sqrt(3),h=height,$fn=6);
-            }
-            if(style == 0 && reverse == 1) {
-                translate([0,0,-height]) rotate([0,0,30]) cylinder(d=radius*2/sqrt(3),h=height,$fn=6);
-            }
-            if(style == 1 && reverse == 0) {
-                cylinder(d=radius,h=height,$fn=90);
-            }
-            if(style == 1 && reverse == 1) {
-                translate([0,0,-height]) cylinder(d=radius,h=height,$fn=90);
-            }
-            if(reverse == 1) {
-                translate([0,0,-supportheight]) cylinder(d=(supportsize),h=supportheight,$fn=60);
-            }
-            else {
-                cylinder(d=(supportsize),h=supportheight,$fn=60);
-            }
-        }
-        // hole
-        if(sink <= 3  && reverse == 0) {
-                translate([0,0,-adjust]) cylinder(d=holesize, h=height+(adjust*2),$fn=90);
-        }
-        if(sink <= 3  && reverse == 1) {
-                translate([0,0,-adjust-height]) cylinder(d=holesize, h=height+(adjust*2),$fn=90);
-        }
-        // countersink hole
-        if(sink == 1 && reverse == 0) {
-            translate([0,0,-adjust]) cylinder(d1=6.5, d2=(holesize), h=3);
-        }
-        if(sink == 1 && reverse == 1) {
-            translate([0,0,+adjust-2.5]) cylinder(d1=(holesize), d2=6.5, h=3);
-        }
-        // recessed hole
-        if(sink == 2 && reverse == 0) {
-            translate([0,0,-adjust]) cylinder(d=6.5, h=3);
-        }
-        if(sink == 2 && reverse == 1) {
-            translate([0,0,+adjust-3]) cylinder(d=6.5, h=3);
-        }
-        // nut holder
-        if(sink == 3 && reverse == 0) {
-            translate([0,0,-adjust]) cylinder(r=3.3,h=3,$fn=6);     
-        }
-        if(sink == 3 && reverse == 1) {
-            translate([0,0,+adjust-3]) cylinder(r=3.3,h=3,$fn=6);     
-        }
-        // blind hole
-        if(sink == 4 && reverse == 0) {
-            translate([0,0,2]) cylinder(d=holesize, h=height,$fn=90);
-        }
-        if(sink == 4 && reverse == 1) {
-            translate([0,0,-height-2-adjust]) cylinder(d=holesize, h=height,$fn=90);
-        }
-        if(insert_e > 0 && reverse == 0) {
-            translate([0,0,height-i_depth]) cylinder(d=i_dia, h=i_depth+adjust,$fn=90);
-        }
-        if(insert_e > 0 && reverse == 1) {
-            translate([0,0,-height-adjust]) cylinder(d=i_dia, h=i_depth+adjust,$fn=90);
-        }
-    }
-}
-
-
-/* buttons */
-module button(style, size, radius, pad) {
-
-    diameter = size[0];
-    height = size[2];
-    gap = 1.5;
-    adjust = .01;
-    $fn = 90;
-
-    if(style == "recess") {
-        difference() {
-            union() {
-                sphere(d=diameter);
-                translate([0,0,-height+3]) cylinder(d=6, h=height-6);
-            }
-            translate([-(diameter/2)-1,-(diameter/2)-1,0]) cube([diameter+2,diameter+2,(diameter/2)+2]);
-            difference() {
-                union() {
-                    sphere(d=diameter-2);
-                }
-            }
-            translate([-1.75,-1.25,-height-1]) cube([3.5,2.5,height+2]);
-            translate([0,0,-(diameter/2)]) cylinder(d=5, h=2);
-        }
-    }
-    if(style == "cutout") {
-        difference() {
-            translate([-size[0]+2,-3-size[1]/2,0]) slab_r([size[0]+2,size[1]+6,size[2]-2*adjust], [.1,.1,.1,.1]);            
-            difference() {
-                translate([-size[0]+3,-size[1]/2,-adjust]) 
-                    slab_r([size[0],size[1],size[2]], [radius[0],radius[1],radius[2],radius[3]]);
-                translate([-size[0]+3+(gap/2),-size[1]/2+(gap/2),-1]) slab_r([size[0]-gap,size[1]-gap,1+size[2]+2*adjust], 
-                    [radius[0],radius[1],radius[2]-gap/2,radius[3]-gap/2]);
-                translate([-size[0]+3-gap,-1,-1]) cube([gap*2,2,1+height+2*adjust]);
-            }
-            translate([0,0,2]) sphere(d=3);
-        }
-        translate([0,0,-pad+adjust]) cylinder(d=3, h=pad);
-    }
-}
-
-
-/* button plunger,top,clip */
-module button_assembly(style, diameter, height) {
-
-adjust = .01;
-$fn = 90;
-
-    if(style == "recess") {
-        button_plunger(style, diameter, height);
-        button_top(style, diameter, height);
-        translate([0,0,-height]) button_clip(style);
-    }
-}
-
-
-/* button plunger */
-module button_plunger(style, diameter, height) {
-
-adjust = .01;
-$fn = 90;
-
-    if(style == "recess") {
-        difference() {
-            translate([-1.5,-1,-(height)-2]) cube([3,2,height+1]);
-            translate([-1.5-adjust,-1.5,-height]) cube([.5,3,1]);
-            translate([1+adjust,-1.5,-height]) cube([.5,3,1]);
-            translate([-1.5-adjust,-1.5,-4]) cube([.5,3,4]);
-            translate([1+adjust,-1.5,-4]) cube([.5,3,4]);
-        }
-    }
-}
-
-
-/* button top */
-module button_top(style, diameter, height) {
-
-adjust = .01;
-$fn = 90;
-
-    if(style == "recess") {
-        difference() {
-            translate([0,0,-3]) cylinder(d=5, h=2.75);
-            translate([-1.25,-1.25,-3-adjust]) cube([2.5,2.5,2]);
-        }
-    }
-}
-
-
-/* button c-clip */
-module button_clip(style) {
-
-adjust = .01;
-$fn = 90;
-
-    if(style == "recess") {
-        difference() {
-            cylinder(d=8.5, h=.8);
-            translate([-1.5,-1.75,-adjust]) cube([2.75,3.5,1]);
-            translate([-.75,-.75,-adjust]) cube([5,1.25,1.25]);
-        }
-    }
-}
-/* case feet */
-module feet (diameter,height) {
-    
-    difference (){ 
-        cylinder (d=diameter,h=height);
-        translate([0,0,-1]) cylinder (d=3, h=height+2,$fn=90);
-        translate ([0,0,-1]) cylinder(r=3.35,h=height-3,$fn=6);       
-    }
-}
-
-
-// pcb bottom edge holder
-module pcb_holder(size,wallthick) {
-    
-    adjust=.01;
-    $fn = 90;    
-    difference() {
-        union() {
-            translate([-1.85,-1.75,0]) cube([size[0]+3.5,5,6]);
-                translate([size[0]+1.65,-5.75,1]) 
-                    rotate([0,-90,0]) 
-                    linear_extrude(height = size[0]+3.5) 
-                        polygon(points = [ [-wallthick/2,-wallthick/2],
-                            [2,wallthick], 
-                            [4,4], 
-                            [-wallthick/2,4]]);
-                translate([-1.85,4,1]) 
-                    rotate([0,-90,180]) 
-                    linear_extrude(height = size[0]+3.5) 
-                        polygon(points = [ [-wallthick/2,-wallthick/2],
-                            [2,wallthick], 
-                            [2,2], 
-                            [-wallthick/2,2]]);
-        }
-        translate([-.5,0,2]) cube([size[0]+1,size[2],5]);
-        translate([6,-adjust-5-1.75,-adjust]) cube([size[0]-12,14,8]);
-    }   
-}
-
-
-/* odroid rtc battery holder */
-module batt_holder(tolerance) {
-    
-    $fn = 90;
-    difference () {
-        cylinder(d=25.5,h=6);
-        translate ([0,0,-1]) cylinder(d=20.4+tolerance,h=8);
-        cube([14,26,13], true);
-    }
-    cylinder(r=12.75, h=2);
-}
-
-
-/* odroid uart module holder */
-module uart_holder() {
-
-    rotate([0,0,0]) 
-    translate ([0,0,0])
-        union () {
-            difference () {
-                translate ([0,0,0]) cube([18,24,9]);
-                translate ([2,-2,3]) cube([14,27,7]);
-                //pin slot
-                translate ([3.5,16,-1]) cube([11,1,5]);
-                //component bed
-                translate ([3.5,1.5,2]) cube ([11,14,2]);
-                //side trim
-                translate ([-1,-1,6]) cube([20,18,4]);
-            }    
-            difference (){
-                translate ([-1.5,20,0]) cylinder(r=3,h=9, $fn=90);
-                translate ([-1.5,20,-1]) cylinder (r=1.375, h=11, $fn=90);
-            }    
-            difference (){
-                translate ([19.5,20,0]) cylinder(r=3,h=9, $fn=90);
-                translate ([19.5,20,-1]) cylinder (r=1.375, h=11,$fn=90);
-            }  
-        }
-    }
-
-    
-/* odroid uart strap for holder */
-module uart_strap() { 
-    difference () {
-        translate ([-4.5,17,9]) cube([27,6,3]);
-        translate ([-1.5,20,8]) cylinder (r=1.6, h=5, $fn=90);
-        translate ([19.5,20,8]) cylinder (r=1.6, h=5, $fn=90);
-    }   
-    difference (){
-        translate ([-1.5,20,12]) cylinder(r=3,h=1, $fn=90);
-        translate ([-1.5,20,11]) cylinder (r=1.6, h=7, $fn=90);
-    }  
-    difference (){
-        translate ([19.5,20,12]) cylinder(r=3,h=1, $fn=90);
-        translate ([19.5,20,11]) cylinder (r=1.6, h=7, $fn=90);
-    }    
-}
-
-/* fan cover */
-module fan_cover(size, thick) {
-    difference() {
-        color("grey",1) slab([size,size,thick],3);
-        color("grey",1) fan_mask(size, thick, 2);
-    }
-}
-
-/* hex vent panel */
-// borders:
-// y - specified size along y axis
-// x - specified size along x axis
-// none - both borders the size of cell_spacing, no mounting holes
-// anything else ("default") - all borders of specified size
-//
-module vent_panel_hex(x, y, thick, cell_size=8, cell_spacing=3, border=3, borders="default") {
-    hole = 3.2;
-    xb = (borders == "y" || borders == "none") ? cell_spacing : border;
-    yb = (borders == "x" || borders == "none") ? cell_spacing : border;
-    hxb = max(yb/2, cell_spacing + hole);
-    hyb = max(xb/2, cell_spacing + hole);
-
-    cells_x = floor((2*(x-2*xb-cell_size)/(cell_size+cell_spacing))+1);
-    cells_y = floor(((sqrt(12)*(y-2*yb)-4*cell_size)/(3*(cell_size+cell_spacing)))+1);
-    csx = cell_size + (cells_x-1)*(cell_size+cell_spacing)/2;
-    csy = sqrt(4/3)*cell_size + ((cell_size+cell_spacing)*sqrt(3/4)*(cells_y-1));
-
-    difference() {
-        color("grey",1) slab([x,y,thick],2);
-	    color("grey",1) translate([(x-csx)/2,(y-csy)/2,-1])
-            vent_hex(cells_x, cells_y, thick+3, cell_size, cell_spacing, "horizontal");
-	    if (borders != "none") {
-	        color("grey",1) translate([    hxb,     hyb, -1]) cylinder(d=hole, h=thick+3);
-	        color("grey",1) translate([x - hxb,     hyb, -1]) cylinder(d=hole, h=thick+3);
-	        color("grey",1) translate([    hxb, y - hyb, -1]) cylinder(d=hole, h=thick+3);
-	        color("grey",1) translate([x - hxb, y - hyb, -1]) cylinder(d=hole, h=thick+3);
-	    }
-    }
-}
-
-
-module hk_wb2() {
-    difference () {
-        union() {
-        color("tan") cube([16.5,16.5,1]);
-        translate([1.75,15.75,.75]) rotate([180,0,0]) header_f(6,9);
-        color("silver") translate([11.5,11.5,1]) cube([2,3,.5]);
-        color("silver") translate([11.5,3,1]) cube([2,3,.5]);
-        }
-    translate([9.6,8.33,-1])
-        color("tan") hull() {
-            cylinder(d=1, h=3);
-            translate([5,0,0]) cylinder(d=1, h=3);
-        }
-    translate([7.36,2,-1]) rotate([0,0,90])
-        color("tan") hull() {
-            cylinder(d=1, h=3);
-            translate([5,0,0]) cylinder(d=1, h=3);
-        }
-    }
-}
-
-
-/* odroid-hc4 oled holder */
-module hc4_oled_holder(side,wallthick) {
-    
-    adjust=.01;
-    $fn = 90;    
-    difference() {
-        union() {
-            if(side == "top") {
-                translate([-1.85,-1.75,-4]) cube([32,5,4]);
-                translate([30.15,-3.75,1]) 
-                    rotate([0,-90,0]) 
-                    linear_extrude(height = 32) 
-                        polygon(points = [ [-wallthick/2,-wallthick/2],
-                            [-4,wallthick], 
-                            [-4,2], 
-                            [-wallthick/2,2]]);
-                        translate([-1.85,4,1]) 
-                            rotate([0,-90,180]) 
-                            linear_extrude(height = 32) 
-                                polygon(points = [ [-wallthick/2,-wallthick/2],
-                                    [-4,wallthick], 
-                                    [-4,2], 
-                                    [-wallthick/2,2]]);
-            }
-            if(side == "bottom") {
-                translate([-1.85,-1.75,0]) cube([32,5,4]);
-                    translate([30.15,-3.75,1]) 
-                        rotate([0,-90,0]) 
-                        linear_extrude(height = 32) 
-                            polygon(points = [ [-wallthick/2,-wallthick/2],
-                                [2,wallthick], 
-                                [2,2], 
-                                [-wallthick/2,2]]);
-                    translate([-1.85,4,1]) 
-                        rotate([0,-90,180]) 
-                        linear_extrude(height = 32) 
-                            polygon(points = [ [-wallthick/2,-wallthick/2],
-                                [2,wallthick], 
-                                [2,2], 
-                                [-wallthick/2,2]]);
-            }
-        }
-        if(side == "top") {
-            translate([-.5,0,wallthick-8]) cube([29.5,1.9,5]);
-            translate([(32.75/2-(15/2))-1.85,-adjust-3-1.75,-wallthick-2.5]) cube([15,12,wallthick+3]);
-        }
-        if(side == "bottom") {
-            translate([-.5,0,-adjust]) cube([29.5,1.42,5]);
-            translate([(32.75/2-(15/2))-1.85,-adjust-3-1.75,-adjust]) cube([15,12,8]);
-            translate([2.5,-adjust-3-1.75,-adjust]) cube([6,3,8]);
-            translate([12.5,adjust,10]) rotate([90,0,0]) cylinder(d=21, h=2);
-        }
-    }   
-}
-
-
-module hd_mount(hd,orientation,position,side) {
-
-    adjust = .01;
-    $fn = 90;
-    if(hd == 2.5) {
-        if(orientation == "portrait") {
-            if(position == "vertical") {
-                if(side == "left") {
-                    translate([0,14,0]) rotate([0,0,0]) hd25_vtab("right");
-                    translate([0,90.6,0]) rotate([0,0,0]) hd25_vtab("right");
-                }
-                else {  // right
-                    translate([0,14,0]) rotate([0,0,0]) hd25_vtab("left");
-                    translate([0,90.6,0]) rotate([0,0,0]) hd25_vtab("left");
-                }
-            }
-            else {
-                translate([-.5,14,0]) hd25_tab("left");
-                translate([-.5,90.6,0]) hd25_tab("left");
-                translate([70.35,14,0]) hd25_tab("right");
-                translate([70.35,90.6,0]) hd25_tab("right");
-            }
-        }
-        if(orientation == "landscape") {
-            if(position == "vertical") {
-                if(side == "left") {
-                    translate([9.4,0,0]) rotate([0,0,90]) hd25_vtab("right");
-                    translate([86,0,0])  rotate([0,0,90]) hd25_vtab("right");
-                }
-                else {  // right
-                    translate([9.4,0,0]) rotate([0,0,90]) hd25_vtab("left");
-                    translate([86,0,0])  rotate([0,0,90]) hd25_vtab("left");
-                }
-            }
-            else {
-                translate([9.4,4.07-4.5,0]) rotate([0,0,90]) hd25_tab("left");
-                translate([86,4.07-4.5,0])  rotate([0,0,90]) hd25_tab("left");
-                translate([86,65.79+4.5,0]) rotate([0,0,90]) hd25_tab("right");
-                translate([9.4,65.79+4.5,0]) rotate([0,0,90]) hd25_tab("right");
-            }
-        }
-    }
-    if(hd == 3.5) {
-        if(orientation == "portrait") {
-            if(position == "vertical") {
-                if(side == "left") {
-                    translate([0,41.28,0]) rotate([0,0,0]) hd35_vtab("right");
-                    translate([0,41.28+44.45,0]) rotate([0,0,0]) hd35_vtab("right");
-                    translate([0,41.28+76.20,0]) rotate([0,0,0]) hd35_vtab("right");
-                }
-                else {  // right
-                    translate([0,41.28,0]) rotate([0,0,0]) hd35_vtab("left");
-                    translate([0,41.28+44.45,0]) rotate([0,0,0]) hd35_vtab("left");
-                    translate([0,41.28+76.20,0]) rotate([0,0,0]) hd35_vtab("left");
-                }
-            }
-            else {
-                translate([-.5,28.5,0]) hd35_tab("left");
-                translate([-.5,69.75,0]) hd35_tab("left");
-                translate([-.5,130.1,0]) hd35_tab("left");
-                translate([101.6+.5,28.5,0]) hd35_tab("right");
-                translate([101.6+.5,69.75,0]) hd35_tab("right");
-                translate([101.6+.5,130.1,0]) hd35_tab("right");
-            }
-        }
-        if(orientation == "landscape") {
-            if(position == "vertical") {
-                if(side == "left") {
-                    translate([9.4,0,0]) rotate([0,0,90]) hd35_vtab("right");
-                    translate([86,0,0])  rotate([0,0,90]) hd35_vtab("right");
-                }
-                else {  // right
-                    translate([9.4,0,0]) rotate([0,0,90]) hd35_vtab("left");
-                    translate([86,0,0])  rotate([0,0,90]) hd35_vtab("left");
-                }
-            }
-            else {
-                translate([16.9,-.5,0]) rotate([0,0,90]) hd35_tab("left");
-                translate([76.6,-.5,0])  rotate([0,0,90]) hd35_tab("left");
-                translate([118.5,-.5,0]) rotate([0,0,90]) hd35_tab("left");
-                translate([16.9,101.6-.5,0]) rotate([0,0,90]) hd35_tab("right");
-                translate([76.6,101.6-.5,0]) rotate([0,0,90]) hd35_tab("right");
-                translate([118.5,101.6-.5,0]) rotate([0,0,90]) hd35_tab("right");
-            }
-        }
-    }
-}
-
-
-module hd25_tab(side) {
-
-    width = 15;
-    l_width = 26;
-    depth = 15;
-    height = 4;
-    fillet = 2;
-    hole = 3.6;
-    length = 3;
-    
-    adjust = .01;
-    $fn = 90;
-    if(side == "left") {
-        difference() {
-            union() {
-                translate([0,-depth/2,0]) rotate([0,-90,0]) 
-                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
-                translate([-height,-depth/2,0]) cube([height,depth,height]);
-                translate([adjust,-5.5,depth]) 
-                    rotate([90,0,0]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-                translate([adjust,7.5,depth]) 
-                    rotate([90,0,0]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-            }
-            translate([4.07,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
-            translate([-height-adjust,(width/2)-(length/2)-depth/2,3]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
-            translate([-height-adjust,(width/2)-(length/2)-depth/2,21]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
-        }
-    }
-    if(side == "right") {
-        difference() {
-            union() {
-                translate([height,-depth/2,0]) rotate([0,-90,0]) 
-                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
-                translate([0,-depth/2,0]) cube([height,depth,height]);
-                translate([adjust,-7.5,depth]) 
-                    rotate([90,0,180]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-                translate([adjust,5.5,depth]) 
-                    rotate([90,0,180]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-            }
-            translate([-4.07,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
-            translate([-adjust,(width/2)-(length/2)-depth/2,3]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
-            translate([-adjust,(width/2)-(length/2)-depth/2,21]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
-        }
-    }
-}
-
-
-module hd25_vtab(side) {
-    
-    width = 15;
-    l_width = 16;
-    depth = 15;
-    height = 4;
-    fillet = 2;
-    hole = 3.6;
-    length = 3;
-    
-    adjust = .01;
-    $fn = 90;
-    if(side == "left") {
-        difference() {
-            union() {
-                translate([0,-depth/2,0]) rotate([0,-90,0]) 
-                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
-                translate([-height,-depth/2,0]) cube([height,depth,height]);
-                translate([adjust,-5.5,depth]) 
-                    rotate([90,0,0]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height-5],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-                translate([adjust,7.5,depth]) 
-                    rotate([90,0,0]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height-5],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-            }
-            translate([3,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
-            translate([-height-adjust,1.5+(width/2)-(length/2)-depth/2,5.57]) rotate([90,90,90]) slot(hole,length,height+(2*adjust));
-        }
-    }
-    if(side == "right") {
-        difference() {
-            union() {
-                translate([height,-depth/2,0]) rotate([0,-90,0]) 
-                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
-                translate([0,-depth/2,0]) cube([height,depth,height]);
-                translate([adjust,-7.5,depth]) 
-                    rotate([90,0,180]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height-5],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-                translate([adjust,5.5,depth]) 
-                    rotate([90,0,180]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height-5],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-            }
-            translate([-3,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
-            translate([-adjust,1.5+(width/2)-(length/2)-depth/2,5.57]) rotate([90,90,90]) slot(hole,length,height+(2*adjust));
-        }
-    }
-}
-
-
-module hd35_tab(side) {
-
-    width = 15;
-    l_width = 46;
-    depth = 15;
-    height = 4;
-    fillet = 2;
-    hole = 3.6;
-    length = 3;
-    
-    adjust = .01;
-    $fn = 90;    
-    if(side == "left") {
-        difference() {
-            union() {
-                translate([0,-depth/2,0]) rotate([0,-90,0]) 
-                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
-                translate([-height,-depth/2,0]) cube([height,depth,height]);
-
-                translate([adjust,-5.5,depth]) 
-                    rotate([90,0,0]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height+20],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-                translate([adjust,7.5,depth]) 
-                    rotate([90,0,0]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height+20],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-
-            }
-            translate([3.18,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
-            translate([-height-adjust,(width/2)-(length/2)-depth/2,6.35]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
-            translate([-height-adjust,(width/2)-(length/2)-depth/2,38.35]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
-        }
-    }
-    if(side == "right") {
-        difference() {
-            union() {
-                translate([height,-depth/2,0]) rotate([0,-90,0]) 
-                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
-                translate([0,-depth/2,0]) cube([height,depth,height]);
-
-                translate([adjust,-7.5,depth]) 
-                    rotate([90,0,180]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height+20],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-                translate([adjust,5.5,depth]) 
-                    rotate([90,0,180]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height+20],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-
-            }
-            translate([-3.18,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
-            translate([-adjust,(width/2)-(length/2)-depth/2,6.35]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
-            translate([-adjust,(width/2)-(length/2)-depth/2,38.35]) rotate([90,0,90]) slot(hole,length,height+(2*adjust));
-        }
-    }
-}
-
-module hd35_vtab(side) {
-    
-    width = 15;
-    l_width = 16;
-    depth = 15;
-    height = 4;
-    fillet = 2;
-    hole = 3.6;
-    length = 3;
-    
-    adjust = .01;
-    $fn = 90;
-    if(side == "left") {
-        difference() {
-            union() {
-                translate([0,-depth/2,0]) rotate([0,-90,0]) 
-                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
-                translate([-height,-depth/2,0]) cube([height,depth,height]);
-                translate([adjust,-5.5,depth]) 
-                    rotate([90,0,0]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height-5],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-                translate([adjust,7.5,depth]) 
-                    rotate([90,0,0]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height-5],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-            }
-            translate([3,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
-            translate([-height-adjust,1.5+(width/2)-(length/2)-depth/2,5.57]) rotate([90,90,90]) slot(hole,length,height+(2*adjust));
-        }
-    }
-    if(side == "right") {
-        difference() {
-            union() {
-                translate([height,-depth/2,0]) rotate([0,-90,0]) 
-                    slab_r([l_width,depth,height], [fillet,fillet,fillet,fillet]);
-                translate([0,-depth/2,0]) cube([height,depth,height]);
-                translate([adjust,-7.5,depth]) 
-                    rotate([90,0,180]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height-5],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-                translate([adjust,5.5,depth]) 
-                    rotate([90,0,180]) 
-                        linear_extrude(height = 2) 
-                            polygon(points = [ [-height,height-5],
-                                [-depth+4,-depth], 
-                                [-height,-depth]]);
-            }
-            translate([-3,0,-adjust]) rotate([0,0,0]) cylinder(d=hole, h=3);
-            translate([-adjust,1.5+(width/2)-(length/2)-depth/2,5.57]) rotate([90,90,90]) slot(hole,length,height+(2*adjust));
-        }
-    }
-}
-
-
-module hd_bottom_holes(hd,orientation,position,side,thick) {
-
-    adjust = .01;
-    $fn = 90;
-    if(hd == 2.5) {
-        if(orientation == "portrait") {
-            if(position == "vertical") {
-                if(side == "left") {
-                    translate([-3,14,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                    translate([-3,90.6,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                }
-                else {
-                    // portrait 2.5" bottom screw holes
-                    translate([3,14,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                    translate([3,90.6,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                }
-            }
-            else {
-                // portrait 2.5" bottom screw holes
-                translate([4.07,14,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([4.07,90.6,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([65.79,90.6,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([65.79,14,0]) cylinder(d=3.6,h=thick+(adjust*2));
-            
-            }
-        }
-        if(orientation == "landscape") {
-            if(position == "vertical") {
-                if(side == "left") {
-                    translate([9.4,-3,0]) cylinder(d=3.6,h=thick+5);
-                    translate([86,-3,0]) cylinder(d=3.6,h=thick+5);
-                }
-                else {
-                    echo(side);
-                    translate([9.4,3,0]) cylinder(d=3.6,h=thick+5);
-                    translate([86,3,0]) cylinder(d=3.6,h=thick+5);
-                }
-            }
-            else {
-                // landscape 2.5" bottom screw holes
-                translate([9.4,4.07,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([86,4.07,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([86,65.79,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([9.4,65.79,0]) cylinder(d=3.6,h=thick+(adjust*2));
-            }
-        }
-    }
-    if(hd == 3.5) {
-        if(orientation == "portrait") {
-            if(position == "vertical") {
-                if(side == "left") {
-                    translate([-6,28.5,0]) cylinder(d=3.6,h=thick+5);
-                    translate([-6,70.5,0]) cylinder(d=3.6,h=thick+5);
-                    translate([-6,28.5+101.6,0]) cylinder(d=3.6,h=thick+5);
-                }
-                else {
-                    // portrait 3.5" bottom screw holes
-                    translate([6,28.5,0]) cylinder(d=3.6,h=thick+5);
-                    translate([6,70.5,0]) cylinder(d=3.6,h=thick+5);
-                    translate([6,28.5+101.6,0]) cylinder(d=3.6,h=thick+5);
-                }
-            }
-            else {
-                // portrait 3.5" bottom screw holes
-                translate([3.18,41.28,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([3.18,85.73,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([3.18,117.48,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([98.43,41.28,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([98.43,85.73,0]) cylinder(d=3.6,h=thick+(adjust*2));
-                translate([98.43,117.48,0]) cylinder(d=3.6,h=thick+(adjust*2));
-            }
-        }
-        if(orientation == "landscape") {
-            // landscape 3.5" bottom screw holes
-            translate([29.52,3.18,0]) cylinder(d=3.6,h=thick+(adjust*2));
-            translate([61.27,3.18,0]) cylinder(d=3.6,h=thick+(adjust*2));
-            translate([105.72,3.18,0]) cylinder(d=3.6,h=thick+(adjust*2));
-            translate([29.52,98.43,0]) cylinder(d=3.6,h=thick+(adjust*2));
-            translate([61.27,98.43,0]) cylinder(d=3.6,h=thick+(adjust*2));
-            translate([105.72,98.43,0]) cylinder(d=3.6,h=thick+(adjust*2));
-        }
-    }
-}
-
-
-/* hard drive 2.5", height=drive height */
-module hd25(height) {
-    
-    hd25_x = 100;
-    hd25_y = 69.85;
-    hd25_z = height;
-    
-    adjust = .01;
-    $fn=90;
-    
-    difference() {
-        color("LightGrey",.6) cube([hd25_x,hd25_y,hd25_z]);
-        
-        // bottom screw holes
-        color("Black",.6) translate([9.4,4.07,-adjust]) cylinder(d=3,h=3);
-        color("Black",.6) translate([86,4.07,-adjust]) cylinder(d=3,h=3);
-        color("Black",.6) translate([86,65.79,-adjust]) cylinder(d=3,h=4);
-        color("Black",.6) translate([9.4,65.79,-adjust]) cylinder(d=3,h=4);
-
-        // side screw holes
-        color("Black",.6) translate([9.4,-adjust,3]) rotate([-90,0,0]) cylinder(d=3,h=3);
-        color("Black",.6) translate([86,-adjust,3]) rotate([-90,0,0])  cylinder(d=3,h=3);
-        color("Black",.6) translate([86,hd25_y+adjust,3]) rotate([90,0,0])  cylinder(d=3,h=3);
-        color("Black",.6) translate([9.4,hd25_y+adjust,3]) rotate([90,0,0])  cylinder(d=3,h=3);
-
-        // connector opening
-        color("LightSlateGray",.6) translate([hd25_x-5,11,-1]) cube([5+adjust,32,5+adjust]);
-    }
-}
-
-
-/* hard drive 3.5" */
-module hd35() {
-    
-    hd35_x = 147;
-    hd35_y = 101.6;
-    hd35_z = 26.1;
-    
-    adjust = .01;    
-    $fn=90;
-    
-    difference() {
-        color("LightGrey",.6) cube([hd35_x,hd35_y,hd35_z]);
-        
-        // bottom screw holes
-        color("Black",.6) translate([29.52,3.18,-adjust]) cylinder(d=3,h=3+adjust);
-        color("Black",.6) translate([61.27,3.18,-adjust]) cylinder(d=3,h=3+adjust);
-        color("Black",.6) translate([105.72,3.18,-adjust]) cylinder(d=3,h=3+adjust);
-        color("Black",.6) translate([29.52,98.43,-adjust]) cylinder(d=3,h=3+adjust);
-        color("Black",.6) translate([61.27,98.43,-adjust]) cylinder(d=3,h=3+adjust);
-        color("Black",.6) translate([105.72,98.43,-adjust]) cylinder(d=3,h=3+adjust);
-        
-        // side screw holes
-        color("Black",.6) translate([16.9,-adjust,6.35]) rotate([-90,0,0]) cylinder(d=3,h=3);
-        color("Black",.6) translate([76.6,-adjust,6.35]) rotate([-90,0,0])  cylinder(d=3,h=3);
-        color("Black",.6) translate([118.5,-adjust,6.35]) rotate([-90,0,0])  cylinder(d=3,h=3);
-        color("Black",.6) translate([118.5,hd35_y+adjust,6.35]) rotate([90,0,0])  cylinder(d=3,h=3);
-        color("Black",.6) translate([76.6,hd35_y+adjust,6.35]) rotate([90,0,0])  cylinder(d=3,h=3);
-        color("Black",.6) translate([16.9,hd35_y+adjust,6.35]) rotate([90,0,0])  cylinder(d=3,h=3);
-
-        // connector opening
-        color("LightSlateGray",.6) translate([hd35_x-5,11,-1]) cube([5+adjust,32,5+adjust]);
-
-    }
-}
-
-
-/* 3.5" hdd to 2.5" hdd holder */
-module hdd35_25holder(length,width=101.6) {
-    wallthick = 3;
-    floorthick = 2;
-    hd35_x = length;                    // 145mm for 3.5" drive
-    hd35_y = width;
-    hd35_z = 12;
-    hd25_x = 100;
-    hd25_y = 69.85;
-    hd25_z = 9.5;
-    hd25_xloc = 2;                     // or (hd35_x-hd25_x)/2
-    hd25_yloc = (hd35_y-hd25_y)/2;
-    hd25_zloc = 9.5;
-    adjust = .1;    
-    $fn=90;
-    difference() {
-        union() {
-            difference() {
-                translate([(hd35_x/2),(hd35_y/2),(hd35_z/2)])         
-                    cube_fillet_inside([hd35_x,hd35_y,hd35_z], 
-                        vertical=[3,3,3,3], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);      
-                translate([(hd35_x/2),(hd35_y/2),(hd35_z/2)+floorthick])           
-                    cube_fillet_inside([hd35_x-(wallthick*2),hd35_y-(wallthick*2),hd35_z], 
-                        vertical=[0,0,0,0], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                   
-                // end trim
-                translate([-adjust,5,wallthick+2]) cube([wallthick+(adjust*2),hd35_y-10,10]);
-                translate([hd35_x-wallthick-adjust,5,wallthick+2]) cube([wallthick+(adjust*2),hd35_y-10,10]);
-                
-                // bottom vents
-                for ( r=[15:40:hd35_x-40]) {
-                    for (c=[hd35_y-76:4:75]) {
-                        translate ([r,c,-adjust]) cube([35,2,wallthick+(adjust*2)]);
-                    }
-                }       
-            }
-            // 2.5 hdd bottom support
-            translate([9.4+hd25_xloc,4.07+hd25_yloc,floorthick-adjust]) cylinder(d=8,h=4);
-            translate([86+hd25_xloc,4.07+hd25_yloc,floorthick-adjust]) cylinder(d=8,h=4);
-            translate([86+hd25_xloc,65.79+hd25_yloc,floorthick-adjust]) cylinder(d=8,h=4);
-            translate([9.4+hd25_xloc,65.79+hd25_yloc,floorthick-adjust]) cylinder(d=8,h=4);
-        
-        // side nut holder support    
-        translate([16,wallthick-adjust,7]) rotate([-90,0,0]) cylinder(d=10,h=3);
-        translate([76,wallthick-adjust,7]) rotate([-90,0,0])  cylinder(d=10,h=3);
-            if(length >= 120) {
-                translate([117.5,wallthick-adjust,7]) rotate([-90,0,0])  cylinder(d=10,h=3);
-                translate([117.5,hd35_y-wallthick+adjust,7]) rotate([90,0,0])  cylinder(d=10,h=3);
-            }
-        translate([76,hd35_y-wallthick+adjust,7]) rotate([90,0,0])  cylinder(d=10,h=3);
-        translate([16,hd35_y-wallthick+adjust,7]) rotate([90,0,0])  cylinder(d=10,h=3);
-        
-        // bottom-side support
-        translate([wallthick,wallthick,floorthick-2]) rotate([45,0,0]) cube([hd35_x-(wallthick*2),3,3]);
-        translate([wallthick,hd35_y-wallthick+adjust,floorthick-2]) rotate([45,0,0]) cube([hd35_x-(wallthick*2),3,3]);
-         
-        }
-        // bottom screw holes
-        translate([9.4+hd25_xloc,4.07+hd25_yloc,-adjust]) cylinder(d=3,h=(floorthick*3)+(adjust*2));
-        translate([86+hd25_xloc,4.07+hd25_yloc,-adjust]) cylinder(d=3,h=(floorthick*3)+(adjust*2));
-        translate([86+hd25_xloc,65.79+hd25_yloc,-adjust]) cylinder(d=3,h=(floorthick*3)+(adjust*2));
-        translate([9.4+hd25_xloc,65.79+hd25_yloc,-adjust]) cylinder(d=3,h=(floorthick*3)+(adjust*2));
-        
-         // countersink holes
-        translate([9.4+hd25_xloc,4.07+hd25_yloc,-adjust]) cylinder(d1=6.5, d2=3, h=3);
-        translate([86+hd25_xloc,4.07+hd25_yloc,-adjust]) cylinder(d1=6.5, d2=3, h=3);
-        translate([86+hd25_xloc,65.79+hd25_yloc,-adjust]) cylinder(d1=6.5, d2=3, h=3);
-        translate([9.4+hd25_xloc,65.79+hd25_yloc,-adjust]) cylinder(d1=6.5, d2=3, h=3);
        
-        // side screw holes
-        translate([16,-adjust,7]) rotate([-90,0,0]) cylinder(d=3.6,h=7);
-        translate([76,-adjust,7]) rotate([-90,0,0])  cylinder(d=3.6,h=7);
-        translate([117.5,-adjust,7]) rotate([-90,0,0])  cylinder(d=3.6,h=7);
-        translate([117.5,hd35_y+adjust,7]) rotate([90,0,0])  cylinder(d=3.6,h=7);
-        translate([76,hd35_y+adjust,7]) rotate([90,0,0])  cylinder(d=3.6,h=7);
-        translate([16,hd35_y+adjust,7]) rotate([90,0,0])  cylinder(d=3.6,h=7);
-        
-        // side nut trap    
-        translate([16,wallthick-adjust,7]) rotate([-90,0,0]) cylinder(r=3.30,h=5,$fn=6);
-        translate([76,wallthick-adjust,7]) rotate([-90,0,0])  cylinder(r=3.30,h=5,$fn=6);
-        translate([117.5,wallthick-adjust,7]) rotate([-90,0,0])  cylinder(r=3.30,h=5,$fn=6);
-        translate([117.5,hd35_y-wallthick-adjust,7]) rotate([90,0,0])  cylinder(r=3.30,h=5,$fn=6);
-        translate([76,hd35_y-wallthick-adjust,7]) rotate([90,0,0])  cylinder(r=3.30,h=5,$fn=6);
-        translate([16,hd35_y-wallthick-adjust,7]) rotate([90,0,0])  cylinder(r=3.30,h=5,$fn=6);
-    }
-}
+    see https://github.com/hominoids/SBC_Case_Builder
 
-
-/* odroid-hc4 oled */
-module hc4_oled() {
-    
-adjust = .01;
-$fn=90;
-
-oled_x = 28.5;
-oled_y = 1.25;
-oled_z = 48.6;
-
-oled_open_x = 29;
-oled_open_y = 1.5;
-    difference() {
-        union() {
-            // pcb board
-            color("Tan", 1) translate([0,0,0]) cube([oled_x,oled_y,oled_z]);
-            // oled
-            color("Black", 1) translate([.5,1.25,25.5]) cube([oled_x-1,.625,15]);
-            color("DarkGrey", 1) translate([.5,1.25,40.5]) cube([oled_x-1,.625,4]);
-        }
-        translate([2.8,0,46.7]) {
-            translate([-.6,1.26,0]) rotate([90,0,0])
-                hull() {
-                translate([1.2,0,0]) cylinder(d=1.8, h=1.25+(adjust*2));
-                cylinder(d=1.8, h=1.25+(adjust*2));
-                }
-        }
-        translate([25.7,0,46.7]) {
-            translate([-.6,1.26,0]) rotate([90,0,0])
-                hull() {
-                translate([1.2,0,0]) cylinder(d=1.8, h=1.25+(adjust*2));
-                cylinder(d=1.8, h=1.25+(adjust*2));
-                }
-        }
-        
-    }
-}
-
-
-/* h2 network card */
-module h2_netcard() {
-    
-    adjust = .01;
-    $fn = 90;
-    difference() {
-        union() {
-            color("tan") translate ([0,0,0]) linear_extrude(height = 1) import("./dxf/hk-network-card.dxf");
-            color("goldenrod") translate([3.75,17.85,1-adjust]) cylinder(d=6,h=3);
-            color("goldenrod") translate([106,24.85,1-adjust]) cylinder(d=6,h=3);
-        }
-        translate([20.85,3.85,-adjust]) cylinder(d=3,h=4);
-        translate([3.75,17.85,-adjust]) cylinder(d=3,h=6);
-        translate([3.75,51.1,-adjust]) cylinder(d=3,h=4);
-        translate([20.15,43.85,-adjust]) cylinder(d=3,h=4);
-        translate([106,24.85,-adjust]) cylinder(d=3,h=6);
-        translate([96.5,3.85,-adjust]) cylinder(d=3,h=4);
-    }
-    rj45(26,-1,0,"bottom",1);
-    rj45(43,-1,0,"bottom",1);
-    rj45(60,-1,0,"bottom",1);
-    rj45(77,-1,0,"bottom",1);
-    place(30,25,0,6,6,0,"bottom") color("dimgray") translate([0,0,0]) cube([6,6,.8]);
-    place(47,25,0,6,6,0,"bottom") color("dimgray") translate([0,0,0]) cube([6,6,.8]);
-    place(64,25,0,6,6,0,"bottom") color("dimgray") translate([0,0,0]) cube([6,6,.8]);
-    place(79,25,0,6,6,0,"bottom") color("dimgray") translate([0,0,0]) cube([6,6,.8]);
-    place(56.5,41,0,5,9.75,0,"bottom") color("dimgray") translate([0,0,0]) cube([5,9.75,.8]);
-    for (i=[34.65:.5:48.5]) {
-        color("gold") translate([98,i,1]) cube([2,.25,.25]);
-        color("gold") translate([98,i,-.24]) cube([2,.25,.25]);
-    }
-    for (i=[51:.5:53]) {
-        color("gold") translate([98,i,1]) cube([2,.25,.25]);
-        color("gold") translate([98,i,-.24]) cube([2,.25,.25]);
-    }
-
-}
-
-
-/* hk 3.5 lcd */
-module hk35_lcd() {
-    
-    adjust = .01;
-    $fn = 90;
-    difference() {
-        union() {
-            color("tan") translate ([0,0,0]) slab([95,56,1.7],3.5);
-            color("black",1) translate([10.5,0,1.7]) cube([74.75,54.5,4]);
-            color("white",1) translate([8.5,0,5.7-adjust]) cube([82.75,54.5,2]);
-            color("grey",1) translate([8.5,0,7.7-adjust]) cube([82.75,54.5,.8]);
-            color("dimgrey",1) translate([15,2,8.5-adjust]) cube([75.5,51,.25]);
-        }
-        translate([3.5,3.5,-adjust]) cylinder(d=3,h=6);
-        translate([3.5,52.5,-adjust]) cylinder(d=3,h=4);
-    }
-    translate([3,8.75,1.70-adjust]) momentary45x15();
-    translate([3,19.75,1.70-adjust]) momentary45x15();
-    translate([3,30.75,1.70-adjust]) momentary45x15();
-    translate([3,41.75,1.70-adjust]) momentary45x15();
-    color("black") translate([7.375,.8,-9+adjust]) cube([51.5,5,9]);
-    translate([92.5,4,adjust]) rotate([0,180,0]) header(5);
-    }
-
-
-// hk console uart model
-module hk_uart() {
-    
-    size = [22,13,1.25];
-    adjust = .01;
-    $fn = 90;
-    color("tan") cube([size[0],size[1],size[2]]);
-    translate([6.5,.25,6.25-adjust]) rotate([90,180,-90]) uart_micro();
-    translate([6.75,3,-2+adjust])cylinder(d=1, 2);
-    translate([6.75,5.25,-2+adjust])cylinder(d=1, 2);
-    translate([6.75,7.5,-2+adjust])cylinder(d=1, 2);
-    translate([6.75,9.75,-2+adjust])cylinder(d=1, 2);
-    translate([23,2.75,1.25]) rotate([0,0,90]) usb_micro();
-    translate([13,4.5,1.25]) rotate([0,0,90]) ic([4,4,1]);
-}
-
-
-// hk vu7c lcd display
-module hk_vu7c(gpio_ext, tabs) {
-    
-    lcd_size = [164.85,100,5.48];
-    pcb_size = [184.6,75,1.6];
-    view_size = [155,88.5,.125];        // 154.21 x 85.92
-    hole = 3.2;
-    length = 24-hole;
-    depth = 2;    
-    adjust = .1;
-    $fn = 90;    
-    difference() {
-        union() {
-            color("lightgray") translate([0,0,pcb_size[2]+3.12]) cube(lcd_size);
-            if(tabs == true) {
-                color("black") translate([-(pcb_size[0]-lcd_size[0])/2,lcd_size[1]-pcb_size[1]-1,0]) 
-                    cube(pcb_size);
-            }
-            else {
-                color("black") translate([0,lcd_size[1]-pcb_size[1]-1,0]) 
-                    cube([pcb_size[0]-20,pcb_size[1],pcb_size[2]]);
-            }
-            color("black") translate([3,7.5,pcb_size[2]+3.12+lcd_size[2]-adjust]) cube(view_size);
-            // tabs
-            color("black") translate([51.8,99,0]) slab_r([8,8,1.6],[.1,4,4,.1]);
-            color("black") translate([104.8,99,0]) slab_r([8,8,1.6],[.1,4,4,.1]);
-        }
-        // slots
-        color("dimgray") translate([-(pcb_size[0]-lcd_size[0])/4,lcd_size[1]-1-7,-adjust]) 
-            rotate([0,0,-90]) slot(hole,length,depth);
-        color("dimgray") translate([-(pcb_size[0]-lcd_size[0])/4,lcd_size[1]-1-46,-adjust]) 
-            rotate([0,0,-90]) slot(hole,length,depth);
-        color("dimgray") translate([(pcb_size[0]-(pcb_size[0]-lcd_size[0])/2)-(pcb_size[0]-lcd_size[0])/4,
-            lcd_size[1]-1-7,-adjust]) rotate([0,0,-90]) slot(hole,length,depth);
-        color("dimgray") translate([(pcb_size[0]-(pcb_size[0]-lcd_size[0])/2)-(pcb_size[0]-lcd_size[0])/4,
-            lcd_size[1]-1-46,-adjust]) rotate([0,0,-90]) slot(hole,length,depth);
-        // holes
-        color("dimgray") translate([55.8,103.5,-adjust]) cylinder(d=hole, h=3);
-        color("dimgray") translate([108.8,103.5,-adjust]) cylinder(d=hole, h=3);
-        // pcb cuts
-        color("dimgray") translate([66,97.5,-adjust]) slab_r([20.3,4,2],[1,1,1,1]);
-        color("dimgray") translate([17.8,lcd_size[1]-pcb_size[1]-2,-adjust]) slab_r([78.8,6,2],[1,1,1,1]);
-    }
-    // components
-    translate([70+14.5,28.58,0]) rotate([180,0,180]) hdmi_a();
-    translate([47.49-1,42.09-.75,0]) rotate([180,0,90]) header_f(7,15);
-    translate([39.5,80.19-1,0]) rotate([180,0,90]) header_f(20,15);
-    translate([39.5,82.73-1,0]) rotate([180,0,90]) header_f(20,15);
-    translate([13.15+2.75-.25,36.71-1.25,0]) rotate([180,0,180]) header(7);
-    translate([23.58+2.5,74.42-1.25,0]) rotate([180,0,180]) header(5);
-    translate([98+2,26.04-2,0]) rotate([180,0,180]) pcb_pad(7);
-    color("dimgray") translate([16.25,69.4,-1.99]) cube([4,4,2]);
-    translate([18.5,58,-1.99]) cube([25,5.5,2]);
-    translate([80.5,52.5,-1.99]) cube([4.5,3.5,2]);
-    // gpio extension
-    if(gpio_ext == true) {
-        translate([57.37-1.25,94.93-1.25,0]) rotate([180,0,90]) header(20);
-        translate([57.37-1.25,92.39-1.25,0]) rotate([180,0,90]) header(20);
-    }
-    else {
-        translate([57.37-2,94.93-2,0]) rotate([180,0,90]) pcb_pad(20);
-        translate([57.37-2,92.39-2,0]) rotate([180,0,90]) pcb_pad(20);        
-    }
-    translate([59,52.69,-1.59]) ic(9);
-}
-
-
-// hk vu8m lcd display
-module hk_vu8m(brackets) {
-    $fn = 90;    
-    
-    m1_screw_spacing = 72;
-
-    body_size  = [    198,     133,                1.93];
-    glass_size = [ 195.73,  131.14,                1.60];
-    lcd_size   = [ 184.63,  114.94, body_size[2] + 0.40];
-    view_size  = [ 173.23,  108.64,                  .1];
-
-    rb = 5.25;   // body edge radius
-
-    lcd_clearance = [0.15, 0.1, 0];
-    pcb_size = [14,24,1.6];
-    hole = 4.31;
-    spacer_size = [5.5, 6, 2.5, 5.5, 1, 0, 1, 1, 0, 0, 0];
-
-    // "body"
-    color([0.1,0.1,0.1])
-    difference(){
-        slab(body_size, rb); 
-        lcd_space = lcd_size + 2*lcd_clearance;
-        translate([3.76               , 9               ,    -1]) cube(lcd_space);
-        translate([3.76               , 9               ,    -1]) cylinder(r=1.3, h=5);
-        translate([3.76 + lcd_space[0], 9               ,    -1]) cylinder(r=1.3, h=5);
-        translate([3.76               , 9 + lcd_space[1],    -1]) cylinder(r=1.3, h=5);
-        translate([3.76 + lcd_space[0], 9 + lcd_space[1],    -1]) cylinder(r=1.3, h=5);
-    // 8x holes in body
-        translate([  44.5,              4.5, -1]) cylinder(d=hole, h=5);
-        translate([  51.5,              4.5, -1]) cylinder(d=hole, h=5);
-        translate([ 183.5,              4.5, -1]) cylinder(d=hole, h=5);
-        translate([ 190.5,              4.5, -1]) cylinder(d=hole, h=5);
-        translate([  44.5, body_size[1]-4.5, -1]) cylinder(d=hole, h=5);
-        translate([  51.5, body_size[1]-4.5, -1]) cylinder(d=hole, h=5);
-        translate([ 183.5, body_size[1]-4.5, -1]) cylinder(d=hole, h=5);
-        translate([ 190.5, body_size[1]-4.5, -1]) cylinder(d=hole, h=5);
-
-    }
-    // 4x standoffs
-        color([0.6,0.6,0.6]) {
-            translate([  44.5,              4.5, 0]) standoff(spacer_size);
-            translate([ 183.5,              4.5, 0]) standoff(spacer_size);
-            translate([  44.5, body_size[1]-4.5, 0]) standoff(spacer_size);
-            translate([ 183.5, body_size[1]-4.5, 0]) standoff(spacer_size);
-        }
-    // LCD panel
-    color([0.6, 0.6, 0.65])
-        translate([3.76, 9, body_size[2]-lcd_size[2]]+lcd_clearance)
-            cube(lcd_size); 
-
-    // Front glass
-    // It's actually thinner and glued, but for the sake of simplicity...
-    color([0.2, 0.2, 0.2], 0.9)
-        translate([0.86, 1.38, body_size[2] + 0.01])
-            slab(glass_size, rb);
-
-    // view area
-    color("dimgrey", 0.9)
-        translate([(glass_size[0]-view_size[0])/2, (glass_size[1]-view_size[1])/2, body_size[2] + glass_size[2]- 0.01])
-            slab(view_size, .1);
-
-    // PCB stub
-    color([0.1,0.1,0.1])
-        translate([20.5, 24.5, -3])
-            cube(pcb_size);
-    color("dimgrey")
-        translate([22.5, 26.5, -2])
-            cube([8,16,3]);
-    color([0.1,0.1,0.1])
-        translate([12, 21, -2])
-            cube([7,7,1.6]);
-    color([0.1,0.1,0.1])
-        translate([10, 34, -2])
-            cube([4,10,1.6]);
-
-    //Brackets
-    if(brackets) {
-        translate([44.5 - 7.5,   body_size[1]/2 + m1_screw_spacing/2 - 7.5, - spacer_size[1] - 2]) u_bracket();
-        translate([44.5 - 7.5,   body_size[1]/2 - m1_screw_spacing/2 + 7.5, - spacer_size[1] - 2 + 1.93]) rotate([180,0,0]) u_bracket();
-
-    //Screws
-        color([0.1,0.1,0.1]) {
-            translate([  44.5,              4.5, -8]) rotate([180,0,0]) screw([3,7,0]);
-            translate([ 183.5,              4.5, -8]) rotate([180,0,0]) screw([3,7,0]);
-            translate([  44.5, body_size[1]-4.5, -8]) rotate([180,0,0]) screw([3,7,0]);
-            translate([ 183.5, body_size[1]-4.5, -8]) rotate([180,0,0]) screw([3,7,0]);
-        }
-    }
-}
-
-// Vu8M LCD U-BRACKET
-module u_bracket() {
-    $fn= 30;
-    xi = 124;
-    xo = 154;
-    yi = 42;
-    yo = 42 + 12;   // Outer vertical dimension 
-    z  = 1.93;
-    rlo = 21.3;     // Lower outer corner radii
-    rli = 1;        // Lower inner corner radii
-    ruo = 5.7;      // Upper outer corner radii
-    rui = 5.7;      // Upper inner corner radii
-
-    color([0.2,0.2,0.2])
-    difference() {
-        union() {
-            hull() {
-                translate([          rlo,      rlo,0]) cylinder(r=rlo, h=z, $fn=100);     
-                translate([xo -      rlo,      rlo,0]) cylinder(r=rlo, h=z, $fn=100);     
-            }
-            hull() {
-                translate([          ruo, yo - ruo,0]) cylinder(r=ruo, h=z);     
-                translate([     15 - rui, yo - rui,0]) cylinder(r=rui, h=z);     
-                translate([            0,      rlo,0]) cube([15,$fs,z]);
-            }
-            hull() {
-                translate([xo -      ruo, yo - ruo,0]) cylinder(r=ruo, h=z);     
-                translate([xo - 15 + rui, yo - rui,0]) cylinder(r=rui, h=z);     
-                translate([xo - 15      ,      rlo,0]) cube([15,$fs,z]);
-            }
-        }
-        hull() {
-            translate([     15 + rli, yo - yi + rli,-1]) cylinder(r=rli, h=z+2);     
-            translate([xo - 15 - rli, yo - yi + rli,-1]) cylinder(r=rli, h=z+2);     
-            translate([           15,            yo,-1]) cube([xi,$fs,z+2]);
-        }    
-        translate([     7.5, yo - 4, -1]) cylinder(d=3.21, h=z+2);
-        translate([xo - 7.5, yo - 4, -1]) cylinder(d=3.21, h=z+2);
-        hull() {
-            translate([     7.5, yo -  9.6, -1]) cylinder(d=3.21, h=z+2);
-            translate([     7.5, yo - 29.4, -1]) cylinder(d=3.21, h=z+2);
-        }
-        hull() {
-            translate([xo - 7.5, yo -  9.6, -1]) cylinder(d=3.21, h=z+2);
-            translate([xo - 7.5, yo - 29.4, -1]) cylinder(d=3.21, h=z+2);
-        }
-        translate([     15 +   5.00, 8.25, -1]) cylinder(d=4.11, h=z+2);
-        translate([xo - 15 -  30.00, 8.25, -1]) cylinder(d=4.11, h=z+2);
-        translate([     15 +  10.75, 2.50, -1]) cylinder(d=4.11, h=z+2);
-        translate([     15 +  41.75, 2.50, -1]) cylinder(d=4.11, h=z+2);
-        translate([     15 +  82.25, 2.50, -1]) cylinder(d=4.11, h=z+2);
-        translate([     15 + 113.25, 2.50, -1]) cylinder(d=4.11, h=z+2);
-    }
-}
-
-// hk vu8s lcd display
-module hk_vu8s() {
-    
-    body_size  = [202, 133, 1.70];
-    glass_size = [195.5, 131, 1.75];
-    lcd_size   = [183.5,114, body_size[2] + 1];
-    view_size  = [172.5, 107.5, .1];
-
-    rb = 5.25;   // body edge radius
-
-    lcd_clearance = [0.15, 0.1, 0];
-    pcb_size = [14,24,1.6];
-    hole = 4.31;
-    spacer_size = [5.5, 1.75+body_size[2], 2.5, 5.5, 1, 0, 1, 1, 0, 0, 0];
-    
-    $fn = 90;    
-    adj = .01;
-
-    // "body"
-    color([0.1,0.1,0.1])
-    difference(){
-        union() {
-            slab(body_size, rb);
-            translate([(8.25/2),-1.74-(8.25/2),0]) rotate([0,0,90]) slot(8.25,10+(8.25/2),body_size[2]);
-            translate([body_size[0]-(8.25/2),-1.74-(8.25/2),0]) rotate([0,0,90]) slot(8.25,10+(8.25/2),body_size[2]);
-            translate([(8.25/2),body_size[1]-10,0]) rotate([0,0,90]) slot(8.25,10.75+(8.25/2),body_size[2]);
-            translate([body_size[0]-(8.25/2),body_size[1]-10,0]) rotate([0,0,90]) slot(8.25,10.75+(8.25/2),body_size[2]);
-        }
-        lcd_space = lcd_size + 2*lcd_clearance;
-        
-        // corner holes
-        translate([4, -5, -1]) cylinder(d=hole, h=5);
-        translate([4, 143-5, -1]) cylinder(d=hole, h=5);
-        translate([202-4, -5, -1]) cylinder(d=hole, h=5);
-        translate([202-4, 143-5, -1]) cylinder(d=hole, h=5);
-
-        translate([3.5, 3.5, -1]) cylinder(d=hole, h=5);
-        translate([3.5, body_size[1]-3.5, -1]) cylinder(d=hole, h=5);
-        translate([111, 3.5, -1]) cylinder(d=hole, h=5);
-        translate([111.5, body_size[1]-3.5, -1]) cylinder(d=hole, h=5);
-
-    }
-        // standoffs
-        color([0.6,0.6,0.6]) {
-            translate([4, 3.75, body_size[2]+adj]) standoff(spacer_size);
-            translate([3.75, 128.25, body_size[2]+adj]) standoff(spacer_size);
-            translate([111.5, 4, body_size[2]+adj]) standoff(spacer_size);
-            translate([111.25, 128.75, body_size[2]+adj]) standoff(spacer_size);
-        }
-    // LCD panel
-    color([0.6, 0.6, 0.65])
-        translate([10, 9, body_size[2]-lcd_size[2]]+lcd_clearance)
-            cube(lcd_size); 
-
-    // Front glass
-    // It's actually thinner and glued, but for the sake of simplicity...
-    color([0.2, 0.2, 0.2], 0.9)
-        translate([3, 1.25, body_size[2] + 0.01])
-            slab(glass_size, rb);
-
-    // view area
-    color("dimgrey", 0.9)
-        translate([14, 12.5, body_size[2] + glass_size[2]- 0.01])
-            slab(view_size, .1);
-
-    // PCB stub
-    color([0.1,0.1,0.1])
-        translate([body_size[0]-25, body_size[1]-30, -2])
-            cube([7,7,.1]);
-    color([0.1,0.1,0.1])
-        translate([body_size[0]-50, body_size[1]-35, -2])
-            cube([4,5,.1]);
-}
-
-// ODROID M1 2.5" SATA HDD mounting kit
-module m1_hdmount() {
-    $fn   = 30;
-    dims  = [89.6,   38.5,  2.0];
-    holes = 4;
-    slots = [4.15,    3.3];
-    standoff_style = [5, 16, 0, 3, 25, 0, 0, 1, 0, 0, 0];
-
-    color([0.2,0.2,0.2])
-    difference() {
-        slab(dims, 4.0);
-        translate([     3.1,   28.3, -1]) cylinder(d = holes, h = 4);
-        translate([    86.5,   28.3, -1]) cylinder(d = holes, h = 4);
-        hull() {
-            translate([   14.75,     10.15, -1]) cylinder(d=3.30, h=4);
-            translate([   15.60,     10.15, -1]) cylinder(d=3.30, h=4);
-        }
-        hull() {
-            translate([   75.60,     10.15, -1]) cylinder(d=3.30, h=4);
-            translate([   76.45,     10.15, -1]) cylinder(d=3.30, h=4);
-        }
-    }
-
-    color([0.6,0.6,0.6]) {
-        translate ([   3.1,  28.3 ,  0]) rotate([  0,0,0]) standoff(standoff_style);
-        translate ([  86.5,  28.3 ,  0]) rotate([  0,0,0]) standoff(standoff_style);
-    }
-    color([0.1,0.1,0.1]) {
-        translate ([   3.1,  28.3 ,  2]) rotate([  0,0,0]) screw([3, 7, 0]);
-        translate ([  86.5,  28.3 ,  2]) rotate([  0,0,0]) screw([3, 7, 0]);
-
-        translate ([  15.1,  10.15,  0]) rotate([180,0,0]) screw([3, 7, 0]);
-        translate ([    76,  10.15,  0]) rotate([180,0,0]) screw([3, 7, 0]);
-    }
-
-    // "HDD HOLDER"
-    color([0.9, 0.9, 0.9])
-    translate([67,8,0]) rotate([180,0,180])
-    linear_extrude(height=0.01) text("HDD HOLDER",5);
-}
-
-
-// hdmi a female 
-module hdmi_a() {
-    size_x = 14.5;
-    size_y = 11.5;        
-
-    translate([0,0,.75])
-    union() { 
-        difference() {
-            color("silver") translate([0,0,0]) cube([size_x, size_y, 5.5]);
-            color("dimgray") translate([.5,-.1,.5]) cube([13.5, 11, 4.5]);
-            color("silver") translate([0,-.1,0]) rotate ([-90,0,0]) 
-                cylinder(d=4, h=13.5,$fn=30);
-            color("silver") translate([14.5,-.1,0]) rotate ([-90,0,0]) 
-                cylinder(d=4, h=13.5,$fn=30);
-        }
-        difference() {
-            union() {
-                color("silver") translate([0,-.1,0]) rotate ([-90,0,0]) 
-                cylinder(d=4, h=11.5,$fn=30);
-                color("silver") translate([14.5,-.1,0]) rotate ([-90,0,0]) 
-                cylinder(d=4, h=11.5,$fn=30);
-            }               
-            color("silver") translate([0,-.2,0]) rotate ([-90,0,0]) 
-                cylinder(d=3, h=13.5,$fn=30);
-            color("silver") translate([14.5,-.2,0]) rotate ([-90,0,0]) 
-                cylinder(d=3, h=13.5,$fn=30);
-            color("silver") translate([-3,-1,-3]) cube([3,13.5,7.5]);
-            color("silver") translate([14.5,-1,-3]) cube([3,13.5,7.5]);
-            color("silver") translate([-1,-1,-3]) cube([16.5,13.5,3]);
-            }
-        color("black") translate([2.5,.5,2.25]) cube([9.25,10.5,1.5]);
-        }
-}
-
-
-// single row female headers
-module header_f(pins, height) {
-
-    adjust = .01;
-    $fn = 90;
-    size_x = 2.5;
-    size_y = 2.5 * pins;                
-    union() {
-        color("black") cube([size_x, size_y, height]);
-        for (i=[1:2.5:size_y]) {
-            color("dimgray") translate ([1,i,height-5+adjust]) cube([.64,.64,5]);
-        }
-    }
-}       
-
-
-// single row pcb pad
-module pcb_pad(pads) {
-
-    adjust = .01;
-    $fn = 90;
-    size_x = 2.5;
-    size_y = 2.5 * pads;                
-    union() {
-        for (i=[1:2.5:size_y]) {
-            difference() {
-                color("goldenrod") translate ([2,i+1,0]) cylinder(d=1.25, h=.125);
-                color("dimgray") translate([2,i+1,.01]) cylinder(d=.625, h=2);
-            }
-        }
-    }
-}
-
-
-// uart micro connector type
-module uart_micro() {
-    size_x = 12.5;
-    size_y = 5;        
-    union() {
-        difference() {
-            union() {
-            
-                difference () {
-                    color("white") translate([0,0,0]) cube([size_x,size_y,6]);
-                    color("darkgray") translate([.5,.5,2]) cube([11.5,4,6]);
-                }
-            }
-            color("white") translate([12.5,0,-.5]) cube([2,6,7]);
-            color("white") translate([-1,0,-.5]) cube([1,6,7]);
-            color("white") translate([-1,5,-.5]) cube([14,2,7]);
-            color("darkgray") translate([-1,1.5,2]) cube([14,1,7]);
-        }
-        for (i=[2.5:2.5:10]) {
-            color("silver") translate ([i,3,.5]) cube([.6,.6,5]);
-        }
-    }
-}
-
-
-// usb2 micro otg
-module usb_micro() {
-        size_x = 7;
-        size_y = 4.5;
-        union() {    
-            difference () {
-                color("silver") translate([0,0,0]) cube([size_x, size_y, 3.5]);
-                color("dimgray") translate([.5,-.1,.5]) cube([6, 3.5, 2.5]);
-                color("silver") translate([0,-.1,0]) rotate ([-90,0,0]) 
-                    cylinder(d=2.5, h=6.5,$fn=30);
-                color("silver") translate([7,-.1,0]) rotate ([-90,0,0]) 
-                    cylinder(d=2.5, h=6.5,$fn=30);
-
-            }
-            difference() {
-                union() {
-                    color("silver") translate([0,-.1,0]) rotate ([-90,0,0]) 
-                    cylinder(d=2.5, h=4.5,$fn=30);
-                    color("silver") translate([7,-.1,0]) rotate ([-90,0,0]) 
-                    cylinder(d=2.5, h=4.5,$fn=30);
-                }               
-                color("silver") translate([0,-.2,0]) rotate ([-90,0,0]) 
-                    cylinder(d=1.25, h=6.5,$fn=30);
-                color("silver") translate([7,-.2,0]) rotate ([-90,0,0]) 
-                    cylinder(d=1.25, h=6.5,$fn=30);
-                
-                color("silver") translate([-3,-1,-3]) cube([3,6.5,7.5]);
-                color("silver") translate([7,-1,-3]) cube([3,6.5,7.5]);
-                color("silver") translate([0,-1,-3]) cube([9,6.5,3]);
-                color("silver") translate([-1,-1,-3]) cube([9,6.5,3]);
-                }
-            color("black") translate([1.5,.5,1.25]) cube([4,3.5,1]);
-        }
-    }
-
-
-// rj45 single socket
-module rj45(x,y,rotation,side,pcbsize_z) {
-    size_x = 15.9;
-    size_y = 21.3;
-    place(x,y,0,size_x,size_y,rotation,side) 
-    union() {
-        difference () {
-            color("lightgray") translate([0,0,0]) cube([size_x, size_y, 13.5]);
-            color("darkgray") translate([1.5,-1,1.5]) cube([13, 19.5, 8]);
-            color("darkgray") translate([5.5,-2,7]) cube([5, 19.5, 5]);
-        }
-        color("green") translate([2,-.1,10]) cube([3, 2, 2]);
-        color("orange") translate([11,-.1,10]) cube([3, 2, 2]);
-    }
-}
-
-
-// momentary_4.5x4.5x1.5 button
-module momentary45x15() {
-
-    adjust = .01;
-    $fn = 90;
-    size_x = 4.5;
-    size_y = 4.5;        
-    size_z = 3.1;        
-    union() {
-        color("black") translate([0,0,0]) cube([size_x,size_y,3]);
-        color("silver") translate([0,0,3-adjust]) cube([size_x,size_y,.1]);
-        color("black") translate([2.25,2.25,3.1-adjust]) cylinder(d=2.35,h=1.50);
-        color("black") translate([.75,.75,3]) sphere(d=.75);
-        color("black") translate([.75,3.75,3]) sphere(d=.75);
-        color("black") translate([3.75,.75,3]) sphere(d=.75);
-        color("black") translate([3.75,3.75,3]) sphere(d=.75);
-    }
-}
-
-
-// single row headers
-module header(pins) {
-
-    adjust = .01;
-    $fn = 90;
-    size_x = 2.54;
-    size_y = 2.54 * pins;                
-    union() {
-        color("black") translate([0,0,0]) cube([size_x, size_y, 2.5]);
-        for (i=[1:2.54:size_y]) {
-            color("silver") translate ([1,i,2.5]) cube([.64,.64,5]);
-        }
-    }
-}       
-
-
-// gpio 12 enclosed header
-module encl_header_12() {
-    size_x = 19.5;
-    size_y = 5.5;                
-    union() {                
-        difference () {
-            color("black") translate([0,0,0]) cube([size_x,size_y,6.25]);
-            color ("dimgray") translate ([.5,.5,.6]) cube([18.5,4.5,5.75]);
-        }
-        for (i=[4.5:2:16]) {
-            color("silver") translate ([i,1.5,1]) cube([.5,.5,5]);
-            color("silver") translate ([i,3.5,1]) cube([.5,.5,5]);
-        }
-    }
-}
-
-    
-// micro connector type
-module micro2pin() {
-    size_x = 7.5;
-    size_y = 3.75;        
-    union() {  
-        difference () {
-            color("white") translate([0,0,0]) cube([size_x,size_y,4.75]);
-            color("darkgray") translate([1.5,.5,1]) cube([4.5,2.75,6]);
-            color("white") translate([-.5,.75,-.5]) cube([1,2.5,6]);
-            color("white") translate([7,.75,-.5]) cube([1,2.5,6]);
-            color("darkgray") translate([2.25,-.5,1]) cube([3,2,6]);
-        }
-        color("silver") translate ([2.75,2,.5]) cube([.6,.6,4]);
-        color("silver") translate ([4.5,2,.5]) cube([.6,.6,4]);
-    }
-}
-
-
-// 3.5mm audio plug
-module audio_jack35() {
-    
-    adjust = .01;
-    $fn = 90;
-    size_x = 6.5;
-    size_y = 13.5;        
-        difference () {
-            union() {  
-                color("dimgray") cube([size_x,size_y,3]);
-                color("dimgray") cube([size_x,5.6,4]);
-                color("dimgray") translate([size_x/2,0,2.25]) rotate([-90,0,0]) cylinder(d=6, h=size_y);
-            }
-            color("gray") translate([size_x/2,0,2.25]) rotate([-90,0,0]) cylinder(d=3, h=size_y+adjust);
-        }    
-}
-
-
-// can capacitor
-module capacitor(diameter, height) {
-    adjust = .01;
-    $fn = 90;
-    color("dimgray") rotate([0,0,0]) cylinder(d=diameter+.5, h=.5);
-    color("silver") translate([0,0,.5]) cylinder(d=diameter+.5, h=.5);
-    color("silver") translate([0,0,1]) cylinder(d=diameter, h=height-1);
-}
-
-
-// ic 
-module ic(size) {
-    color("dimgray") cube(size);
-}
-
-
-/* hk speakers */
-module hk_speaker() {
-    
-    spk_x = 44;
-    spk_y = 20;
-    spk_z = 98;
-    c_hole = 6;
-    i_dia = c_hole+3;
-    adjust = .1;
-    
-    difference() {
-        translate([spk_x/2,spk_y/2,spk_z/2]) cube_fillet_inside([spk_x,spk_y,spk_z], 
-            vertical=[0,0,0,0,0], top=[0,c_hole,0,c_hole], bottom=[0,c_hole,0,c_hole], $fn=90);
-        // speaker cone
-        translate([spk_x/2,-adjust,spk_z-72]) rotate([-90,0,0]) cylinder(d=36, h=.5);
-        
-        // corner holes
-        translate([(c_hole/2)+2,-adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
-            cylinder(d=c_hole, h=spk_y+(2*adjust));
-        translate([(c_hole/2)+2,-adjust,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
-            cylinder(d=c_hole, h=spk_y+(2*adjust));
-        translate([spk_x-(c_hole/2)-2,-adjust,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
-            cylinder(d=c_hole, h=spk_y+(2*adjust));
-        translate([spk_x-(c_hole/2)-2,-adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
-            cylinder(d=c_hole, h=spk_y+(2*adjust));
-        
-        // lower left corner indent
-        translate([(c_hole/2)+2,-adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
-            cylinder(d=i_dia, h=10+adjust);
-        translate([-adjust-1,-adjust,-adjust]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
-        translate([adjust+.5,-adjust,-(i_dia/2)+adjust]) cube([i_dia+adjust,10+adjust,i_dia+adjust+.5]);        
-        translate([(c_hole/2)+2,-adjust+12+adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
-            cylinder(d=i_dia, h=10+adjust);
-        translate([-adjust-1,-adjust+12+adjust,-adjust]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
-        translate([adjust+.5,-adjust+12+adjust,-(i_dia/2)+adjust]) cube([i_dia+adjust,10+adjust,i_dia+adjust+.5]);
- 
-        // upper left corner corner indent
-        translate([(c_hole/2)+2,-adjust,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
-            cylinder(d=i_dia, h=10+adjust);
-        translate([-adjust-1,-adjust,spk_z-i_dia-.5]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
-        translate([-adjust+.5,-adjust,spk_z-(i_dia/2)+adjust-.5]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
-        translate([(c_hole/2)+2,-adjust+12,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
-            cylinder(d=i_dia, h=10+adjust);
-        translate([-adjust-1,-adjust+12,spk_z-i_dia-.5]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
-        translate([-adjust+.5,-adjust+12,spk_z-(i_dia/2)+adjust-.5]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
-        
-        // upper right corner corner indent
-        translate([spk_x-(c_hole/2)-2,-adjust,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
-            cylinder(d=i_dia, h=10+adjust);
-        translate([spk_x-1-(i_dia/2),-adjust,spk_z-i_dia+adjust-.5]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
-        translate([spk_x-.5-i_dia,-adjust,spk_z-(i_dia/2)+adjust-.5]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
-        translate([spk_x-(c_hole/2)-2,-adjust+12,spk_z-(c_hole/2)-2]) rotate([-90,0,0]) 
-            cylinder(d=i_dia, h=10+adjust);
-        translate([spk_x-1-(i_dia/2),-adjust+12,spk_z-i_dia+adjust-.5]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
-        translate([spk_x-.5-i_dia,-adjust+12,spk_z-(i_dia/2)+adjust-.5]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
-      
-        // lower right corner corner indent
-        translate([spk_x-(c_hole/2)-2,-adjust,(c_hole/2)+2]) rotate([-90,0,0]) 
-            cylinder(d=i_dia, h=10+adjust);
-        translate([spk_x-1-(i_dia/2),-adjust,-adjust]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
-        translate([spk_x-.5-i_dia,-adjust,-(i_dia/2)+adjust]) cube([i_dia,10+adjust,i_dia+adjust+.5]);
-        translate([spk_x-(c_hole/2)-2,-adjust+12,(c_hole/2)+2]) rotate([-90,0,0]) 
-            cylinder(d=i_dia, h=10+adjust);
-        translate([spk_x-1-(i_dia/2),-adjust+12,-adjust]) cube([c_hole+adjust,10+adjust,i_dia+adjust+.5]);
-        translate([spk_x-.5-i_dia,-adjust+12,-(i_dia/2)+adjust]) cube([i_dia,10+adjust,i_dia+adjust+.5]);            
-        }
-        // speaker cone
-        translate([spk_x/2,-adjust+46,spk_z-72]) {
-            difference() {
-                translate([0,0,0]) sphere(d=96, $fn=180);
-                translate([-50,-46,-50]) cube([100,100,100]);
-            }
-        }
-
-    }
-
-    
-/* hk boom bonnet */
-module hk_boom(speakers,orientation) {
-    
-    adjust = .01;
-    $fn = 90;
-    difference() {
-        union() {
-            color("tan") translate ([0,0,0]) slab([60,35,1.6],.5);
-            if(speakers == true) {
-                color("tan") translate ([-31.5,0,0]) slab([31.5,35,1.6],.5);
-                color("white") translate ([-0.25,0,0]) cube([.5,35,1.6]);
-                color("tan") translate ([60,0,0]) slab([31.5,35,1.6],.5);                
-                color("white") translate ([60,0,0]) cube([.5,35,1.6]);
-            }
-        }
-        // pcb holes
-        color("tan") translate([3.5,3.5,-adjust]) cylinder(d=3,h=6);
-        color("tan") translate([3.5,31.5,-adjust]) cylinder(d=3,h=6);
-        color("tan") translate([56.5,3.5,-adjust]) cylinder(d=3,h=4);
-        color("tan") translate([56.5,31.5,-adjust]) cylinder(d=3,h=4);
-        if(speakers == true) {
-            // left
-            color("tan") translate([-28,3.5,-adjust]) cylinder(d=3,h=6);
-            color("tan") translate([-28,31.5,-adjust]) cylinder(d=3,h=6);
-            color("tan") translate([-3.5,3.5,-adjust]) cylinder(d=3,h=6);
-            color("tan") translate([-3.5,31.5,-adjust]) cylinder(d=3,h=6);
-            // right
-            color("tan") translate([64.5,3.5,-adjust]) cylinder(d=3,h=4);
-            color("tan") translate([64.5,31.5,-adjust]) cylinder(d=3,h=4);
-            color("tan") translate([88,3.5,-adjust]) cylinder(d=3,h=4);
-            color("tan") translate([88,31.5,-adjust]) cylinder(d=3,h=4);
-            // left speaker openings
-            color("tan") translate([-31.5/2,35/2,-adjust]) cylinder(d=23.5, h=3);
-            color("tan") translate([-4-31.5/2,35/2+(23.5/2)-.5,-adjust]) cube([6,3,3]);
-            color("tan") translate([-4-31.5/2,35/2-(23.5/2)-2.5,-adjust]) cube([6,3,3]);
-            color("tan") translate([-4-31.5/2+(23.5/2)+1,-2+35/2,-adjust]) cube([6,3,3]);
-            // right speaker openings
-            color("tan") translate([60+(31.5/2),35/2,-adjust]) cylinder(d=23.5, h=3);
-            color("tan") translate([60-3+31.5/2,35/2+(23.5/2)-.5,-adjust]) cube([6,3,3]);
-            color("tan") translate([60-3+31.5/2,35/2-(23.5/2)-2.5,-adjust]) cube([6,3,3]);
-            color("tan") translate([60+1.25,-2+35/2,-adjust]) cube([6,3,3]);
-        }
-    }
-    // headers
-    translate([7.5,3.5,1.6-adjust]) rotate([0,0,-90]) header(3);
-    translate([16,3.5,1.6-adjust]) rotate([0,0,-90]) header(7);
-    translate([34,2,1.6-adjust]) rotate([0,0,0]) encl_header_12();
-    translate([40,13.5,1.6-adjust]) rotate([0,0,-90]) header(2);
-    translate([45.5,13.5,1.6-adjust]) rotate([0,0,-90]) header(2);
-    difference() {
-        union() {
-            color("dimgray", 1) translate([44.5,27,1.6+2]) rotate([0,0,0]) cylinder(d=16, h=3);
-            color("dimgray", 1) translate([44.5,27,1.6]) rotate([0,0,0]) cylinder(d=8, h=2);
-        }
-        color("dimgray", 1) translate([44.5,27,1.6+4]) rotate([0,0,0]) cylinder(d=12, h=3);     
-        for(d=[5:10:360]) {
-            color("dimgray") translate([44.5+(16/2)*cos(d),27+(16/2)*sin(d),1.6+2-adjust]) cylinder(d=.75, h=3+2*adjust);
-        }  
-    }
-    color("gray", 1) translate([45,27,1.6+4-adjust]) rotate([0,0,0]) cylinder(d=1.5, h=.25);
-    translate([3.75,13,1.6-adjust]) rotate([0,0,90]) micro2pin();
-    translate([56.5,20.5,1.6-adjust]) rotate([0,0,-90]) micro2pin();
-    translate([7.75,21.75,1.6-adjust]) audio_jack35();
-    translate([20,30,1.6-adjust]) capacitor(6.25,6.5);
-    translate([30,30,1.6-adjust]) capacitor(6.25,6.5);
-    translate([22,16,1.6-adjust]) ic([6.5,4.5,1]);
-    translate([10,12,1.6-adjust]) ic([4,4,1]);
-    translate([32.5,9,1.6-adjust]) ic([3.5,3,1]);
-    if(speakers == true && orientation == "rear") {
-        translate([-31.5/2,35/2,1.6]) boom_speaker();
-        translate([60+(31.5/2),35/2,1.6]) boom_speaker();
-    }
-    if(speakers == true && orientation == "front") {
-        translate([-31.5/2,35/2,0]) rotate([0,180,0]) boom_speaker();
-        translate([60+(31.5/2),35/2,0]) rotate([0,180,0]) boom_speaker();
-    }
-}
-
-
-// hk stero boom bonnet speaker with board
-module hk_boom_speaker(side,speaker,pcb) {
-
-    adjust = .01;
-    $fn = 90;
-
-    if(pcb == true) {
-        difference() {
-            color("tan") slab([31.5,35,1.6],.5);
-            color("tan") translate([27.5,4,-adjust]) cylinder(d=3,h=6);
-            color("tan") translate([27.5,31,-adjust]) cylinder(d=3,h=6);
-            color("tan") translate([4,4,-adjust]) cylinder(d=3,h=6);
-            color("tan") translate([4,31,-adjust]) cylinder(d=3,h=6);
-            
-            // speaker openings
-            color("tan") translate([(31.5/2),35/2,-adjust]) cylinder(d=23.5, h=3);
-            color("tan") translate([-3+31.5/2,35/2+(23.5/2)-.5,-adjust]) cube([6,3,3]);
-            color("tan") translate([-3+31.5/2,35/2-(23.5/2)-2.5,-adjust]) cube([6,3,3]);
-            if(side == "right") {
-                color("tan") translate([.5,-2+35/2,-adjust]) cube([6,3,3]);
-            }
-            if(side == "left") {
-                color("tan") translate([31.5/2+(23.5/2)-2.5,-2+35/2,-adjust]) cube([6,3,3]);
-            }
-        }
-    }
-    if(speaker == true && pcb == true) {
-        translate([(31.5/2),35/2,1.6]) boom_speaker();        
-    }
-    if(speaker == true && pcb == false) {
-        boom_speaker();        
-    }
-}
-
-
-// hk stero boom bonnet speakers
-module boom_speaker() {
-
-    adjust = .01;
-    $fn = 90;
-    difference() {
-        union() {
-            color("silver") translate([0,0,-8.5]) cylinder_fillet_inside(h=6.5, r=21.4/2, 
-                top=0, bottom=2, $fn=90, fillet_fn=30, center=false);
-            color("dimgray") translate([0,0,2.5-adjust]) cylinder_fillet_inside(h=1, r=21.75/2, 
-                top=1, bottom=0, $fn=90, fillet_fn=30, center=true);
-  
-            difference() {                
-                color("black") translate([0,0,-5-adjust]) cylinder(d=23.7, h=5);
-                for(d=[30:60:360]) {
-                    color("dimgray") translate([(23.7/2)*cos(d),(23.7/2)*sin(d),-6-adjust]) cylinder(d=6, h=5+2*adjust);
-                }
-            }                
-            color("black") translate([0,0,-adjust]) cylinder(d=27.8, h=2);
-            color("dimgray") translate([0,0,1]) cylinder(d=22.8, h=1);
-            color("dimgray") translate([0,0,1]) cylinder(d=17.5, h=1.25);
-        }
-        color("darkgray") translate([0,0,10.5]) sphere(d=23);
-    }  
-}
-
-
-// hk boom bonnet speaker grill
-module hk_boom_grill(style,thick) {
-
-    adjust = .01;
-    $fn = 90;
-    if(style == "dome" || style == "frame") {
-        difference() {
-            union() {
-                difference() {
-                    translate([0,0,-23]) sphere(d=52.5);
-                    translate([0,0,-25]) sphere(d=52.5);
-                    translate([-30,-30,-60.5]) cube([60,60,60]);
-                    for(c=[-14.5:3:24]) {
-                        for(r=[-14.5:3:24]) {
-                            translate([r,c,-1]) cube([2,2,40]);
-                        }
-                    }
-                }
-                if(style == "frame") {
-                    difference() {
-                        translate([0,0,-1.25]) cylinder(d=30.5, h=thick);
-                        translate([0,0,-1.25-adjust]) cylinder(d=24, h=thick+2*adjust);      
-                    }
-                }
-            }
-        }
-    }
-    if(style == "flat") {
-        difference() {
-            translate([0,0,0]) cylinder(d=24.5, h=thick);
-            for(c=[-14.5:3:24]) {
-                for(r=[-14.5:3:24]) {
-                    translate([r,c,-1]) cube([2,2,thick+2]);
-                }
-            }
-        }
-    }
-}
-
-
-// hk stero boom bonnet speaker holder
-module boom_speaker_holder(style, tolerance) {
-
-    adjust = .01;
-    $fn = 90;
-
-    if(style == "friction") {
-        difference() {
-            translate([0,0,0]) cylinder(d=31, h=4);
-            translate([0,0,-adjust]) cylinder(d=28+tolerance, h=4+2*adjust);
-            translate([0,-1,-adjust]) cube([15,40,10], center=true);
-        }  
-        difference() {
-            translate([0,0,0]) cylinder(d=28+tolerance, h=2);
-            translate([0,0,-adjust]) cylinder(d=28+tolerance-2, h=4+2*adjust);                
-            translate([0,-1,-adjust]) cube([15,40,10], center=true);
-        }
-    }
-
-    if(style == "clamp") {
-        // bottom clamp
-        topthick = 2;
-        top_height = 14;
-        difference() {
-            cube([10.5,29,top_height-topthick]);
-            // speaker holders
-                translate([-1,14.5,14]) rotate([0,90,0]) cylinder(d=28, h=4.5);
-                translate([2,14.5,14]) rotate([0,90,0]) cylinder(d=24, h=6);
-                translate([4,14.5,14]) rotate([0,90,0]) cylinder(d=21.9, h=7.8);
-        }        
-    }
-}
-
-
-// hk stero boom bonnet speaker clamp holder top
-module boom_speaker_strap(side) {
-
-    topthick = 2;
-    top_height = 14;
-    adjust = .01;
-    $fn = 90;
-    // top clamp
-    difference() {
-        difference() {
-            union() {
-                translate([-3,14.5,top_height]) rotate([0,90,0]) cylinder(d=35,h=13.75);
-                if(side == "left") {
-                    translate([5.4,16.5,top_height+(topthick/2)-1]) cube_fillet_inside([16.75,55,topthick], 
-                    vertical=[6,1,6,1], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                }        
-                if(side == "right") {
-                    translate([5.4,13,top_height+(topthick/2)-1]) cube_fillet_inside([16.75,55,topthick], 
-                        vertical=[1,6,1,1], top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-                }        
-            translate([10.75-adjust,14.5,top_height]) rotate([0,90,0]) cylinder(d=35,h=3);
-            }
-            translate([-9.25,0,top_height-topthick-adjust]) cube([20,29,topthick]);
-            difference() {
-                translate([-4.25,14.5,14]) rotate([0,90,0]) cylinder(d=28, h=15);
-                translate([-5.25,0,19]) cube([20,30,19.5]);
-            }
-        }
-        // speaker holders
-        translate([-3-adjust,14.5,14]) rotate([0,90,0]) cylinder(d=30.8, h=4.5);
-        translate([-3-adjust,14.5,14]) rotate([0,90,0]) cylinder(d=32.8, h=2);
-        translate([-2.75,14.5,14]) rotate([0,90,0]) cylinder(d=28, h=14.5);
-        translate([-4.55,-4,-4]) cube([20,37,topthick+15]);
-
-        if(side == "left") {
-            translate([4.15,-3.4,-adjust]) cylinder(d=3.2, h=50);
-            translate([4.15,-3.4,15]) cylinder(d=6, h=10);
-            translate([5.75,40,-adjust]) cylinder(d=3.2, h=50);
-        }
-        if(side == "right") {
-            translate([4.5,32.5,-adjust]) cylinder(d=3.2, h=50);
-            translate([4.5,32.5,15]) cylinder(d=6, h=10);
-            translate([10.5,-11,-adjust]) cylinder(d=3.2, h=50);
-        }
-    }
-}
-
-
-// hk stero boom bonnet volume ring 
-module boom_vring(tolerance) {
-
-    out_dia = 22;
-    in_dia = 16.15 + tolerance;
-    thick = 3;
-    nub = 1.25;
-    adjust = .01;
-    $fn = 90;
-    difference() {
-        color("black") translate([0,0,0])cylinder(d=out_dia, h=thick);
-        color("dimgray") translate([0,0,-adjust]) cylinder(d=in_dia, h=thick+2*adjust);
-        for(d=[5:10:360]) {
-            color("dimgray") translate([(out_dia/2)*cos(d),(out_dia/2)*sin(d),-adjust]) cylinder(d=nub, h=thick+2*adjust);
-        }
-    }  
-}
-
-
-/* access port and support */
-module access_port(size,orientation) {
-    
-    floorthick = size[2];
-    adjust = .01;
-    $fn = 90;
-    if(orientation == "portrait") {
-        difference() {
-            union() {
-                translate([0,0,0]) cube([size[0],size[1],size[2]]);
-                // access panel support
-                translate([(size[0]/2)+.25,size[1]-6.5,0]) cylinder(d=9,h=floorthick+(adjust*2)+5);
-                translate([(size[0]/2)-10,size[1]-11,floorthick-adjust]) cube([20,9.5,floorthick]);
-                translate([1,0,floorthick-adjust]) cube([size[0]-2,5,4.5]);
-                }
-            // access opening
-            translate([.5,6,-adjust]) cube([size[0]-1.15,size[1]-17,floorthick+(adjust*2)]);
-            translate([(size[0]/2)-5,size[1]-12,-adjust]) slab([10.5,5.5,floorthick],5.5);
-            translate([(size[0]/2)+.25,size[1]-6.5,floorthick+2])
-                cylinder(r=3.2,h=floorthick+(adjust*2)+5,$fn=6);
-            translate([(size[0]/2)+.25,size[1]-6.5,-adjust]) 
-                cylinder(d=3.2,h=floorthick+(adjust*2)+5);
-            translate([4,2+adjust,floorthick]) cube([7.75,3,2.75]);
-            translate([size[0]-13,2+adjust,floorthick]) cube([7.75,3,2.75]);
-            if(size[0] > 100) {
-                translate([(size[0]/2),2+adjust,floorthick]) cube([7.75,3,2.75]);
-            }
-        }
-    }
-    if(orientation == "landscape") {
-        difference() {
-            union() {
-                translate([0,-1,0]) cube([size[0],size[1],size[2]]);
-                // access panel support
-                translate([size[0]-6.5,(size[1]/2)-.5,0]) cylinder(d=9,h=floorthick+(adjust*2)+5);
-                translate([size[0]-11,(size[1]/2)-10.5,floorthick-adjust]) cube([9.5,20,floorthick]);
-                translate([0,0,floorthick-adjust]) cube([5,size[1]-2,4.5]);
-            }
-            // access opening
-            translate([6,-.5,-adjust]) cube([size[0]-17,size[1]-1.15,floorthick+(adjust*3)]);
-            translate([size[0]-12,(size[1]/2)-6,-adjust]) slab([5.5,10.5,floorthick],5.5);
-            translate([size[0]-6.5,(size[1]/2)-.5,floorthick+2]) rotate([0,0,30])
-                cylinder(r=3.2,h=floorthick+(adjust*2)+5,$fn=6);
-            translate([size[0]-6.5,(size[1]/2)-.5,-adjust]) 
-                cylinder(d=3.2,h=floorthick+(adjust*2)+5);
-            translate([2+adjust,3,floorthick]) cube([3,8.25,2.75]);
-            translate([2+adjust,size[1]-13,floorthick]) cube([3,8.25,2.75]);
-            if(size[1] > 100) {
-                translate([2+adjust,(size[1]/2)-(7.75/2)-1.25,floorthick]) cube([3,7.75,2.5]);
-            }
-        }
-    }
-}
-
-
-/* access cover and support */        
-module access_cover(size,orientation) {
-    
-    floorthick = size[2];
-    adjust = .01;
-    $fn = 90;
-    if(orientation == "portrait") {
-        difference() {
-            union() {
-                translate([1,6.25,0]) cube([size[0]-2.15,size[1]-17.5,floorthick]);
-                translate([(size[0]/2)-4.75,size[1]-12.25,0]) slab([10,5,floorthick], 5);
-                translate([1,6.25,floorthick-adjust]) cube([size[0]-2.15,6,floorthick]);
-                translate([4.25,3,floorthick]) cube([7.25,4,2]);
-                translate([size[0]-12.75,3,floorthick]) cube([7.25,4,2]);
-                if(size[0] > 100) {
-                    translate([(size[0]/2)+.25,3,floorthick]) cube([7.25,4,2]);
-                }
-            }
-            translate([(size[0]/2)+.25,size[1]-6.5,-floorthick-adjust]) 
-                cylinder(d=3.2,h=(floorthick*2)+(adjust*2));
-            translate([(size[0]/2)+.25,size[1]-6.5,-floorthick-adjust+floorthick]) 
-                cylinder(d1=6, d2=3.2, h=floorthick);
-        }
-    }
-    if(orientation == "landscape") {
-        difference() {
-            union() {
-                translate([6.25,0,0]) cube([size[0]-17.75,size[1]-2,floorthick]);
-                translate([size[0]-12.25,(size[1]/2)-5.75,0]) slab([5,10,floorthick], 5);
-                translate([6.25,0,floorthick-adjust]) cube([6,size[1]-2.15,floorthick]);
-                translate([3.5+adjust,3.25,floorthick]) cube([4,7.25,2]);
-                translate([3.5+adjust,size[1]-12.75,floorthick]) cube([4,7.25,2]);
-                if(size[1] > 100) {
-                    translate([3.5+adjust,(size[1]/2)-(7.75/2)-1,floorthick]) cube([4,7.25,2]);
-                }
-            }
-            translate([size[0]-6.5,(size[1]/2)-.75,-floorthick-adjust]) 
-                cylinder(d=3.2,h=(floorthick*2)+(adjust*2));
-            translate([size[0]-6.5,(size[1]/2)-.75,-floorthick-adjust+floorthick]) 
-                cylinder(d1=6, d2=3.2, h=floorthick);
-        }
-    }
-}
-
-
-/* hdmi opening */
-module hdmi_open(hdmi_style) {
-    
-    if(hdmi_style == "hdmi_a") {
-        union() { 
-            difference() {
-                translate([0,-5,1.25]) cube([15.5,8,5.75]);
-                translate([0.5,-5.2,.5]) rotate ([-90,0,0]) cylinder(d=3, h=13.5,$fn=30);
-                translate([15,-5.2,.5]) rotate ([-90,0,0]) cylinder(d=3, h=13.5,$fn=30);
-            }
-            translate([1.75,-5,.5]) cube([12, 8, 1]);
-        }
-    }
-    if(hdmi_style == "hdmi_micro") {
-        union() { 
-            difference() {
-                translate([-.25,-6,-.01]) cube([7,8,3.15]);
-                translate([-.25,-6.2,0]) rotate ([-90,0,0]) cylinder(d=1.5, h=9.5,$fn=30);
-                translate([6.75,-6.2,0]) rotate ([-90,0,0]) cylinder(d=1.5, h=9.5,$fn=30);
-            }
-        }
-    }
-    if(hdmi_style == "hdmi_mini") {
-        union() { 
-            difference() {
-                translate([-.25,-6,-.01]) cube([11.5,8,3.5]);
-                translate([-1,-6.2,-.5]) rotate ([-90,0,0]) cylinder(d=3, h=10,$fn=30);
-                translate([12.25,-6.2,-.5]) rotate ([-90,0,0]) cylinder(d=3, h=10,$fn=30);
-            }
-        }
-    }
-    if(hdmi_style=="dp_mini") {
-        size_x = 9;
-        size_y = 8;        
-        union() {    
-            difference() {
-                translate([-.25,-6,0]) cube([size_x, size_y, 5.75]);
-                translate([-7.5,-7,1]) rotate([0,45,0]) cube([size_x, size_y+2, 5.6]);
-                translate([10,-7,-5]) rotate([0,-45,0]) cube([size_x, size_y+2, 5.6]);                    
-            }
-        }
-    }
-}       
-
-
-/* micro-usb opening */
-module microusb_open() {
-    
-    translate([0,0,.5])rotate([90,0,0])
-    hull() {
-        translate([6,1.5,-5]) cylinder(d=3.5,h=12);
-        translate([1,1.5,-5]) cylinder(d=3.5,h=12);
-    }
-}
-
-
-/* fan mask to create opening */
-module fan_mask(size, thick, style) {
-
-    $fn=90;
-    
-    if(style == 1) {
-        translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-2);
-        if(size == 40) {
-            // mount holes
-            translate ([size-4,size-4,-1]) cylinder(h=thick+2, d=3);
-            translate ([size-4,4,-1]) cylinder(h=thick+2, d=3);
-            translate ([4,size-4,-1]) cylinder(h=thick+2, d=3);
-            translate ([4,4,-1]) cylinder(h=thick+2, d=3);
-        }
-        if(size == 60) {
-            // mount holes
-            translate ([size-5,size-5,-1]) cylinder(h=thick+2, d=3);
-            translate ([size-5,5,-1]) cylinder(h=thick+2, d=3);
-            translate ([5,size-5,-1]) cylinder(h=thick+2, d=3);
-            translate ([5,5,-1]) cylinder(h=thick+2, d=3);
-        }
-        if(size >= 80) {
-            // mount holes
-            translate ([size-3.75,size-3.75,-1]) cylinder(h=thick+2, d=3);
-            translate ([size-3.75,3.75,-1]) cylinder(h=thick+2, d=3);
-            translate ([3.75,size-3.75,-1]) cylinder(h=thick+2, d=3);
-            translate ([3.75,3.75,-1]) cylinder(h=thick+2, d=3);
-        }
-    }
-    if(style == 2 && size == 40) {
-        difference() {
-            union () {
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-2);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-6);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-10);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-14);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-18);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-22);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-26);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-30);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-34);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-38);
-                }
-                // mount holes
-                translate ([size-4,size-4,-1]) cylinder(h=thick+2, d=3);
-                translate ([size-4,4,-1]) cylinder(h=thick+2, d=3);
-                translate ([4,size-4,-1]) cylinder(h=thick+2, d=3);
-                translate ([4,4,-1]) cylinder(h=thick+2, d=3);
-            }
-            translate([6.5,5,-2]) rotate([0,0,45]) cube([size,2,thick+4]);
-            translate([4.5,size-6,-2]) rotate([0,0,-45]) cube([size,2,thick+4]);
-        } 
-    }
-    if(style == 2 && size == 60) {
-        difference() {
-            union () {
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-2);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-6);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-10);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-14);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-18);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-22);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-26);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-30);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-34);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-38);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-42);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-46);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-50);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-54);
-                }
-                // mount holes
-                translate ([size-5,size-5,-1]) cylinder(h=thick+2, d=3);
-                translate ([size-5,5,-1]) cylinder(h=thick+2, d=3);
-                translate ([5,size-5,-1]) cylinder(h=thick+2, d=3);
-                translate ([5,5,-1]) cylinder(h=thick+2, d=3);
-            }
-            translate([9.5,8,-2]) rotate([0,0,45]) cube([size,2,thick+4]);
-            translate([8.5,size-10,-2]) rotate([0,0,-45]) cube([size,2,thick+4]);
-        } 
-    }
-    if(style == 2 && size >= 80) {
-        difference() {
-            union () {
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-2);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-8);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-14);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-20);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-26);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-32);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-38);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-44);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-50);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-56);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-62);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-68);
-                }
-                difference() {
-                    translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-74);
-                    translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-79);
-                }
-                if(size == 92) {
-                    difference() {
-                        translate ([size/2,size/2,-1]) cylinder(h=thick+2, d=size-86);
-                        translate ([size/2,size/2,-2]) cylinder(h=thick+4, d=size-92);
-                    }
-                }
-                // mount holes
-                translate ([size-3.75,size-3.75,-1]) cylinder(h=thick+2, d=3);
-                translate ([size-3.75,3.75,-1]) cylinder(h=thick+2, d=3);
-                translate ([3.75,size-3.75,-1]) cylinder(h=thick+2, d=3);
-                translate ([3.75,3.75,-1]) cylinder(h=thick+2, d=3);
-            }
-            translate([6.5,4.25,-2]) rotate([0,0,45]) cube([size*1.2,3,thick+4]);
-            translate([4.25,size-6.5,-2]) rotate([0,0,-45]) cube([size*1.2,3,thick+4]);
-        } 
-    }
-    if(style == 3) {
-        inner = size == 30 ? 24 :
-            size == 40 ? 32 :
-            size == 50 ? 40 :
-                size == 60 ? 50 :
-                size == 70 ? 61.9 :
-                    size == 80 ? 71.5 :
-                    size * 0.8; // Use 80% as default
-        
-        rings = size <= 40 ? 4 : 6;
-        bar_size = size <= 40 ? 2 : 3;
-
-        screw_offset = inner / 2;
-        center_point = size * 0.5;
-        base_ring_size = size * 0.95;
-        rings_spacing = size / rings;
-
-        translate([size/2, size/2, -1])
-        union() {
-            translate([screw_offset, screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
-            translate([-screw_offset, screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
-            translate([screw_offset, -screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
-            translate([-screw_offset, -screw_offset, (thick+2)/2]) cylinder(d=3, h=thick+2, center=true);
-
-            difference() {
-            union() {
-                for(i=[inner:-rings_spacing:0]) {
-                    difference() {
-                        cylinder(d=base_ring_size - i, h=thick+2);
-                        translate([0, 0, -1]) cylinder(d=base_ring_size - i - (rings_spacing/2), h=thick+4);
-                    }
-                }
-            }
-                
-            translate([0, 0, -1]) union() {
-                cylinder(d=bar_size*2+0.1, thick+6); // Add a circle to prevent any tiny holes around cross bar
-                rotate([0, 0, 45]) cube([size, bar_size, 12], center=true);
-                rotate([0, 0, 45]) cube([bar_size, size, 12], center=true);
-            }
-            }
-        }
-    }
-}
-
-/* mask module */
-module mask(loc_x,loc_y,loc_z,rotation,side,class,type,wallthick,gap,floorthick,pcb_z) {
-    
-    adjust = .01;
-    $fn=90;
-    
-    // hdmi opening
-    if(type == "hdmi_a" && side == "top" && rotation == 0) {
-        place(loc_x-.5,loc_y,loc_z,15,11.5,rotation,side) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a" && side == "top" && rotation == 90) {
-        place(loc_x-1,loc_y,loc_z,15,11.5,rotation,side) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a" && side == "top" && rotation == 180) {
-        place(loc_x,loc_y+1,loc_z,15,11.5,rotation,side) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a" && side == "top" && rotation == 270) {
-        place(loc_x+1,loc_y-.5,loc_z,15,11.5,rotation,side) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a" && side == "bottom" && rotation == 0) {
-        place(loc_x,loc_y-1,loc_z-pcb_z,15,11.5,rotation,side) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a" && side == "bottom" && rotation == 90) {
-        place(loc_x,loc_y,loc_z-pcb_z,15,11.5,rotation,side) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a" && side == "bottom" && rotation == 180) {
-        place(loc_x-.5,loc_y-1,loc_z-pcb_z,15,11.5,rotation,side) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a" && side == "bottom" && rotation == 270) {
-        place(loc_x-1,loc_y-1,loc_z-pcb_z,15,11.5,rotation,side) hdmi_open("hdmi_a");
-    }
-    // hdmi vertical opening
-    if(type == "hdmi_a_vertical" && side == "top" && rotation == 0) {
-        place(loc_x-.5,loc_y,loc_z+1.5,15,11.5,rotation,side) translate([-.25,0,15.4]) rotate([0,90,0]) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a_vertical" && side == "top" && rotation == 90) {
-        place(loc_x-1,loc_y,loc_z+1.5,15,11.5,rotation,side) translate([-.25,0,15.4]) rotate([0,90,0]) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a_vertical" && side == "top" && rotation == 180) {
-        place(loc_x,loc_y+1,loc_z+1.5,15,11.5,rotation,side) translate([-.25,0,15.4]) rotate([0,90,0]) hdmi_open("hdmi_a");
-    }
-    if(type == "hdmi_a_vertical" && side == "top" && rotation == 270) {
-        place(loc_x+1,loc_y-.5,loc_z+1.5,15,11.5,rotation,side) translate([-.25,0,15.4]) rotate([0,90,0]) hdmi_open("hdmi_a");
-    }
-   // hdmi micro opening
-    if(class == "video" && type == "hdmi_micro" && rotation == 0 && side == "top") {
-        place(loc_x,loc_y,loc_z,7.25,6.5,rotation,side) hdmi_open("hdmi_micro");
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 90 && side == "top") {
-        place(loc_x,loc_y-.75,loc_z,7.25,6.5,rotation,side) hdmi_open("hdmi_micro");
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 180 && side == "top") {
-        place(loc_x-.75,loc_y+1,loc_z,7.25,6.5,rotation,side) hdmi_open("hdmi_micro");
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 270 && side == "top") {
-        place(loc_x,loc_y,loc_z,7.25,6.5,rotation,side) hdmi_open("hdmi_micro");
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 0 && side == "bottom") {
-        place(loc_x-1.5,loc_y,loc_z-1.5,8,3,rotation,side) hdmi_open("hdmi_micro");
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 90 && side == "bottom") {
-        place(loc_x+4.5,loc_y-1.5,loc_z-1.5,8,3,rotation,side) hdmi_open("hdmi_micro");
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 180 && side == "bottom") {
-        place(loc_x,loc_y+4.5,loc_z-1.5,8,3,rotation,side) hdmi_open("hdmi_micro");
-    }
-    if(class == "video" && type == "hdmi_micro" && rotation == 270 && side == "bottom") {
-        place(loc_x,loc_y,loc_z-1.5,8,3,rotation,side) hdmi_open("hdmi_micro");
-    }
-
-    // hdmi mini opening
-    if(class == "video" && type == "hdmi_mini" && rotation == 0 && side == "top") {
-        place(loc_x+.125,loc_y,loc_z,11.5,8,rotation,side) hdmi_open("hdmi_mini");
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 90 && side == "top") {
-        place(loc_x,loc_y-.375,loc_z,11.5,8,rotation,side) hdmi_open("hdmi_mini");
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 180 && side == "top") {
-        place(loc_x-.5,loc_y,loc_z,11.5,8,rotation,side) hdmi_open("hdmi_mini");
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 270 && side == "top") {
-        place(loc_x,loc_y+.125,loc_z,11.5,8,rotation,side) hdmi_open("hdmi_mini");
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 0 && side == "bottom") {
-        place(loc_x-.375,loc_y,loc_z-1.5,11.5,8,rotation,side) hdmi_open("hdmi_mini");
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 90 && side == "bottom") {
-        place(loc_x,loc_y-.5,loc_z-1.5,11.5,8,rotation,side) hdmi_open("hdmi_mini");
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 180 && side == "bottom") {
-        place(loc_x,loc_y,loc_z-1.5,11.5,8,rotation,side) hdmi_open("hdmi_mini");
-    }
-    if(class == "video" && type == "hdmi_mini" && rotation == 270 && side == "bottom") {
-        place(loc_x,loc_y,loc_z-1.5,11.5,8,rotation,side) hdmi_open("hdmi_mini");
-    }
-    // dp mini opening
-    if(class == "video" && type == "dp_mini" && rotation == 0 && side == "top") {
-        place(loc_x-.125,loc_y,loc_z,9,8,rotation,side) hdmi_open("dp_mini");
-    }
-    if(class == "video" && type == "dp_mini" && rotation == 90 && side == "top") {
-        place(loc_x,loc_y-.5,loc_z,9,8,rotation,side) hdmi_open("dp_mini");
-    }
-    if(class == "video" && type == "dp_mini" && rotation == 180 && side == "top") {
-        place(loc_x-.375,loc_y+6,loc_z,9,8,rotation,side) hdmi_open("dp_mini");
-    }
-    if(class == "video" && type == "dp_mini" && rotation == 270 && side == "top") {
-        place(loc_x+6,loc_y,loc_z,9,8,rotation,side) hdmi_open("dp_mini");
-    }
-    if(class == "video" && type == "dp_mini" && rotation == 0 && side == "bottom") {
-        place(loc_x-.675,loc_y,loc_z-1.5,9,8,rotation,side) hdmi_open("dp_mini");
-    }
-    if(class == "video" && type == "dp_mini" && rotation == 90 && side == "bottom") {
-        place(loc_x+6,loc_y-.5,loc_z-1.5,9,8,rotation,side) hdmi_open("dp_mini");
-    }
-    if(class == "video" && type == "dp_mini" && rotation == 180 && side == "bottom") {
-        place(loc_x-.375,loc_y+6,loc_z-1.5,9,8,rotation,side) hdmi_open("dp_mini");
-    }
-    if(class == "video" && type == "dp_mini" && rotation == 270 && side == "bottom") {
-        place(loc_x,loc_y,loc_z-1.5,9,8,rotation,side) hdmi_open("dp_mini");
-    }
-    // power plug openings
-    if(type == "pwr5.5_7.5x11.5" && rotation == 0 && side == "top") {
-        place(loc_x,loc_y,loc_z,7,7,rotation,side) 
-            translate([3.75,2,6.5]) rotate([90,0,0]) cylinder(d=7, h=8);
-    }
-    if(type == "pwr5.5_7.5x11.5" && rotation == 90 && side == "top") {
-        place(loc_x,loc_y,loc_z,7,7,rotation,side) 
-            translate([3.25,2,6.5]) rotate([90,0,0]) cylinder(d=7, h=8);
-    }
-    if(type == "pwr5.5_7.5x11.5" && rotation == 180 && side == "top") {
-        place(loc_x,loc_y,loc_z,7,7,rotation,side) 
-            translate([3.25,-2.5,6.5]) rotate([90,0,0]) cylinder(d=7, h=8);
-    }
-    if(type == "pwr5.5_7.5x11.5" && rotation == 270 && side == "top") {
-        place(loc_x-2,loc_y,loc_z,7,7,rotation,side) 
-            translate([3.75,-4.5,6.5]) rotate([90,0,0]) cylinder(d=7, h=8);
-    }
-    if(type == "pwr2.5_5x7.5" && rotation == 0 && side == "top") {
-        place(loc_x,loc_y,loc_z,3,3,rotation,side) 
-            translate([2.75,2,2]) rotate([90,0,0]) cylinder(d=3, h=8);
-    }
-    if(type == "pwr2.5_5x7.5" && rotation == 90 && side == "top") {
-        place(loc_x,loc_y,loc_z,3,3,rotation,side) 
-            translate([.25,2,2]) rotate([90,0,0]) cylinder(d=3, h=8);
-    }
-    if(type == "pwr2.5_5x7.5" && rotation == 180 && side == "top") {
-        place(loc_x,loc_y,loc_z,3,3,rotation,side) 
-            translate([.5,-2.5,2]) rotate([90,0,0]) cylinder(d=3, h=8);
-    }
-    if(type == "pwr2.5_5x7.5" && rotation == 270 && side == "top") {
-        place(loc_x,loc_y,loc_z,3,3,rotation,side) 
-            translate([2.75,-2.5,2]) rotate([90,0,0]) cylinder(d=3, h=8);
-    }
-    // pwr5.5_10x10 opening
-    if(type == "pwr5.5_10x10" && rotation == 0 && side == "top") {
-        place(loc_x-.25,loc_y-6,loc_z,10.5,13.5,rotation,side)
-            cube([10.5,8,10.5]);
-    }
-    // pwr5.5_10x10 opening
-    if(type == "pwr5.5_10x10" && rotation == 90 && side == "top") {
-        place(loc_x-6,loc_y-.25,loc_z,10.5,13.5,rotation,side)
-            cube([10.5,8,10.5]);
-    }
-    // pwr5.5_10x10 opening
-    if(type == "pwr5.5_10x10" && rotation == 180 && side == "top") {
-        place(loc_x-.25,loc_y+6,loc_z,10.5,13.5,rotation,side)
-            cube([10.5,8,10.5]);
-    }
-    // pwr5.5_10x10 opening
-    if(type == "pwr5.5_10x10" && rotation == 270 && side == "top") {
-        place(loc_x+6,loc_y-.25,loc_z,10.5,13.5,rotation,side)
-            cube([10.5,8,10.5]);
-    }
-    // pwr5.5_9.5x7 opening
-    if(type == "pwr5.5_9.5x7" && rotation == 0 && side == "top") {
-        place(loc_x-.25,loc_y-6,loc_z,10,13.5,rotation,side)
-            cube([10,8,7.5]);
-    }
-    // pwr5.5_9.5x7 opening
-    if(type == "pwr5.5_9.5x7" && rotation == 90 && side == "top") {
-        place(loc_x-6,loc_y-.25,loc_z,10,13.5,rotation,side)
-            cube([10,8,7.5]);
-    }
-    // pwr5.5_9.5x7 opening
-    if(type == "pwr5.5_9.5x7" && rotation == 180 && side == "top") {
-        place(loc_x-.25,loc_y+2,loc_z,10,13.5,rotation,side)
-            cube([10,8,7.5]);
-    }
-    // pwr5.5_9.5x7 opening
-    if(type == "pwr5.5_9.5x7" && rotation == 270 && side == "top") {
-        place(loc_x+2,loc_y-.25,loc_z,10,13.5,rotation,side)
-            cube([10,8,7.5]);
-    }
-    // emmc storage
-    if(type == "emmc" && side == "bottom" && rotation == 0) {
-        place(loc_x-.5,loc_y-.5,floorthick+adjust,14.5,19.5,rotation,side) 
-            cube([14.5,19.5,floorthick+(2*adjust)]);
-    }
-    if(type == "emmc" && side == "bottom" && rotation == 90) {
-        place(loc_x-.5,loc_y-.5,floorthick+adjust,14.5,19.5,rotation,side) 
-            cube([14.5,19.5,floorthick+(2*adjust)]);
-    }
-    if(type == "emmc" && side == "bottom" && rotation == 180) {
-        place(loc_x-.5,loc_y-.5,floorthick+adjust,14.5,19.5,rotation,side) 
-            cube([14.5,19.5,floorthick+(2*adjust)]);
-    }
-    if(type == "emmc" && side == "bottom" && rotation == 270) {
-        place(loc_x-.5,loc_y-.5,floorthick+adjust+7,15,19.5,rotation,side) 
-            cube([14.5,19.5,floorthick+(2*adjust)+12]);
-    }
-    // sd storage
-    if(type == "sdcard" && side == "bottom" && rotation == 0) {
-        place(loc_x-1,loc_y-15,loc_z-pcb_z-1.75,12,15.5,rotation,side)
-            cube([13,15.5,2]);
-    }
-    if(type == "sdcard" && side == "bottom" && rotation == 90) {
-        place(loc_x+5,loc_y,loc_z-pcb_z-1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "sdcard" && side == "bottom" && rotation == 180) {
-        place(loc_x,loc_y+5,loc_z-pcb_z-1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "sdcard" && side == "bottom" && rotation == 270) {
-        place(loc_x+5,loc_y-18,loc_z-pcb_z-1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "sdcard" && side == "top" && rotation == 0) {
-        place(loc_x,loc_y-15,loc_z+1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "sdcard" && side == "top" && rotation == 90) {
-        place(loc_x-15,loc_y-.5,loc_z+1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "sdcard" && side == "top" && rotation == 180) {
-        place(loc_x-.5,loc_y+5,loc_z+1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "sdcard" && side == "top" && rotation == 270) {
-        place(loc_x+5,loc_y,loc_z+1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "sdcard_i" && side == "bottom" && rotation == 0) {
-        place(loc_x,loc_y-18.5,floorthick+adjust+4,12,18.5,rotation,side)
-            cube([12,18.5,floorthick+(2*adjust)+4]);
-    }
-    if(type == "sdcard_i" && side == "bottom" && rotation == 90) {
-        place(loc_x+5.5,loc_y-.25,floorthick+adjust+4,12,18.5,rotation,side)
-            cube([12,18.5,floorthick+(2*adjust)+4]);
-    }
-    if(type == "sdcard_i" && side == "bottom" && rotation == 180) {
-        place(loc_x,loc_y+5.5,floorthick+adjust+4,12,18.5,rotation,side)
-            cube([12,18.5,floorthick+(2*adjust)+4]);
-    }
-    if(type == "sdcard_i" && side == "bottom" && rotation == 270) {
-        place(loc_x-18.5,loc_y-.25,floorthick+adjust+4,12,18.5,rotation,side)
-            cube([12,18.5,floorthick+(2*adjust)+4]);
-    }
-    if(type == "microsdcard" && side == "top" && rotation == 0) {
-        place(loc_x-.125,loc_y-12.1,loc_z,13.2,14.1,rotation,side)
-            cube([13.5,14.1,2]);
-    }
-    if(type == "microsdcard" && side == "top" && rotation == 90) {
-        place(loc_x-12.1,loc_y+.125,loc_z,13.2,14.1,rotation,side)
-            cube([13.5,14.1,2]);
-    }
-    if(type == "microsdcard" && side == "top" && rotation == 180) {
-        place(loc_x+.125,loc_y+12.1,loc_z,13.2,14.1,rotation,side)
-            cube([13.5,14.1,2]);
-    }
-    if(type == "microsdcard" && side == "top" && rotation == 270) {
-        place(loc_x+12.1,loc_y-.125,loc_z,13.2,14.1,rotation,side)
-            cube([13.5,14.1,2]);
-    }
-    if(type == "microsdcard" && side == "bottom" && rotation == 0) {
-        place(loc_x+.125,loc_y-12.1,loc_z-pcb_z,13.2,14.1,rotation,side)
-            cube([13.5,14.1,2]);
-    }
-    if(type == "microsdcard" && side == "bottom" && rotation == 90) {
-        place(loc_x+12.1,loc_y-.125,loc_z-pcb_z,13.2,14.1,rotation,side)
-            cube([13.5,14.1,2]);
-    }
-    if(type == "microsdcard" && side == "bottom" && rotation == 180) {
-        place(loc_x-.125,loc_y+12.1,loc_z-pcb_z,13.2,14.1,rotation,side)
-            cube([13.5,14.1,2]);
-    }
-    if(type == "microsdcard" && side == "bottom" && rotation == 270) {
-        place(loc_x-12.1,loc_y+.125,loc_z-pcb_z,13.2,14.1,rotation,side)
-            cube([13.5,14.1,2]);
-    }
-    if(type == "microsdcard2" && side == "bottom" && rotation == 0) {
-        place(loc_x-1,loc_y-15,loc_z-pcb_z,12,15.5,rotation,side)
-            cube([13,15.5,2]);
-    }
-    if(type == "microsdcard2" && side == "bottom" && rotation == 90) {
-        place(loc_x+5,loc_y,loc_z-pcb_z,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "microsdcard2" && side == "bottom" && rotation == 180) {
-        place(loc_x,loc_y+5,loc_z-pcb_z,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "microsdcard2" && side == "bottom" && rotation == 270) {
-        place(loc_x+5,loc_y-18,loc_z-pcb_z,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "microsdcard2" && side == "top" && rotation == 0) {
-        place(loc_x,loc_y-15,loc_z+1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "microsdcard2" && side == "top" && rotation == 90) {
-        place(loc_x-15,loc_y-.5,loc_z+1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "microsdcard2" && side == "top" && rotation == 180) {
-        place(loc_x-.5,loc_y+5,loc_z+1.75,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    if(type == "microsdcard2" && side == "top" && rotation == 270) {
-        place(loc_x+5,loc_y,loc_z,12,15.5,rotation,side)
-            cube([12,15.5,2]);
-    }
-    // rj45 opening
-    if(type == "rj45_single" && rotation == 0) {
-        place(loc_x,loc_y-6,loc_z,16,17.5,rotation,side) 
-            cube([16,8,14]);
-        }
-    if(type == "rj45_single" && rotation == 90) {
-        place(loc_x-6,loc_y,loc_z,16,17.5,rotation,side) 
-            cube([16,8,14]);
-        }
-    if(type == "rj45_single" && rotation == 180) {
-        place(loc_x,loc_y+10,loc_z,16,17.5,rotation,side) 
-            cube([16,8,14]);
-        }
-    if(type == "rj45_single" && rotation == 270) {
-        place(loc_x+9,loc_y,loc_z,16,17.5,rotation,side) 
-            cube([16.5,8,14]);
-    }
-    if(type == "rj45_reverse_single" && rotation == 0) {
-        place(loc_x-.25,loc_y-6,loc_z,16,17.5,rotation,side) 
-            cube([16.5,8,14]);
-        }
-    if(type == "rj45_reverse_single" && rotation == 90) {
-        place(loc_x-6,loc_y,loc_z,16,17.5,rotation,side) 
-            cube([16.5,8,14]);
-        }
-    if(type == "rj45_reverse_single" && rotation == 180) {
-        place(loc_x,loc_y+10,loc_z,16,17.5,rotation,side) 
-            cube([16.5,8,14]);
-        }
-    if(type == "rj45_reverse_single" && rotation == 270) {
-        place(loc_x+9,loc_y,loc_z,16,17.5,rotation,side) 
-            cube([16.5,8,14]);
-    }
-    // rj45 short opening
-    if(type == "rj45_single_short" && rotation == 0) {
-        place(loc_x,loc_y-6,loc_z,16,17.5,rotation,side) 
-            cube([15,8,12]);
-        }
-    if(type == "rj45_single_short"  && rotation == 90) {
-        place(loc_x-6,loc_y,loc_z,16,17.5,rotation,side) 
-            cube([15,8,12]);
-        }
-    if(type == "rj45_single_short"  && rotation == 180) {
-        place(loc_x,loc_y+10,loc_z,16,17.5,rotation,side) 
-            cube([15,8,12]);
-        }
-    if(type == "rj45_single_short"  && rotation == 270) {
-        place(loc_x+9,loc_y,loc_z,16,17.5,rotation,side) 
-            cube([15,8,12]);
-    }
-    // double stacked rj45 opening
-    if(type == "rj45_double_stacked" && rotation == 0) {
-        place(loc_x,loc_y-7.5,loc_z,18,17.5,rotation,side)
-            cube([19,12,27]);
-        }
-    if(type == "rj45_double_stacked" && rotation == 90) {
-        place(loc_x-7.5,loc_y,loc_z,18,17.5,rotation,side)
-            cube([19,12,27]);
-        }
-    if(type == "rj45_double_stacked" && rotation == 180) {
-        place(loc_x,loc_y+11.5,loc_z,18,17.5,rotation,side)
-            cube([19,12,27]);
-        }
-    if(type == "rj45_double_stacked" && rotation == 270) {
-        place(loc_x+10.5,loc_y,loc_z,18,17.5,rotation,side)
-            cube([19,12,27]);
-    }
-    if(type == "rj45_low_profile" && rotation == 0) {
-        place(loc_x,loc_y-6,loc_z-3.5,15,8,rotation,side) 
-            cube([14.75,8,12.25]);
-        }
-    // micro usb opening
-    if(class == "usb2" && type == "micro" && rotation == 0 && side == "top") {
-        place(loc_x,loc_y-3,loc_z,8,3,rotation,side) microusb_open();
-    }
-    if(class == "usb2" && type == "micro" && rotation == 90 && side == "top") {
-        place(loc_x-3,loc_y-1,loc_z,8,3,rotation,side) microusb_open();
-    }
-    if(class == "usb2" && type == "micro" && rotation == 180 && side == "top") {
-        place(loc_x-1,loc_y+4.5,loc_z,8,3,rotation,side) microusb_open();
-    }
-    if(class == "usb2" && type == "micro" && rotation == 270 && side == "top") {
-        place(loc_x+4.5,loc_y,loc_z,8,3,rotation,side) microusb_open();
-    }
-    if(class == "usb2" && type == "micro" && rotation == 0 && side == "bottom") {
-        place(loc_x-1,loc_y-3,loc_z-1.25,8,3,rotation,side) microusb_open();
-    }
-    if(class == "usb2" && type == "micro" && rotation == 90 && side == "bottom") {
-        place(loc_x+4.5,loc_y-1,loc_z-1.25,8,3,rotation,side) microusb_open();
-    }
-    if(class == "usb2" && type == "micro" && rotation == 180 && side == "bottom") {
-        place(loc_x,loc_y+4.5,loc_z-1.25,8,3,rotation,side) microusb_open();
-    }
-    if(class == "usb2" && type == "micro" && rotation == 270 && side == "bottom") {
-        place(loc_x-3,loc_y,loc_z-1.25,8,3,rotation,side) microusb_open();
-    }
-    // double stack usb opening
-    if((type == "double_stacked_a" || type == "double_stacked_usb3-usbc" || type == "double_stacked_usb3-usb2") && rotation == 0) {
-        place(loc_x-1,loc_y-6,loc_z,15.5,16,rotation,side)
-            cube([15.5,8,16.5]);
-    }
-    if((type == "double_stacked_a" || type == "double_stacked_usb3-usbc" || type == "double_stacked_usb3-usb2") && rotation == 90) {
-        place(loc_x-6,loc_y-1.25,loc_z,15.5,16,rotation,side)
-            cube([15.5,8,16.5]);
-    }
-    if((type == "double_stacked_a" || type == "double_stacked_usb3-usbc" || type == "double_stacked_usb3-usb2") && rotation == 180) {
-        place(loc_x-1,loc_y+7.5,loc_z,15.5,16,rotation,side)
-            cube([15.5,8,16.5]);
-    }
-    if((type == "double_stacked_a" || type == "double_stacked_usb3-usbc" || type == "double_stacked_usb3-usb2") && rotation == 270) {
-        place(loc_x+6.25,loc_y-1,loc_z,15.5,16,rotation,side)
-            cube([15.5,8,16.5]);
-    }
-    // single vertical usb opening
-    if(type == "single_vertical_a" && rotation == 0) {
-        place(loc_x-.5,loc_y-6,loc_z,6.5,19.5,rotation,side)
-            cube([6.5,8,15]);
-    }
-    if(type == "single_vertical_a" && rotation == 90) {
-        place(loc_x-6,loc_y-.25,loc_z,6.5,19.5,rotation,side)
-            cube([6.5,8,15]);
-    }
-    if(type == "single_vertical_a" && rotation == 180) {
-        place(loc_x-.5,loc_y+6,loc_z,6.5,19.5,rotation,side)
-            cube([6.5,8,15]);
-    }
-    if(type == "single_vertical_a" && rotation == 270) {
-        place(loc_x+6.5,loc_y,loc_z,6.5,19.5,rotation,side)
-            cube([6.5,8,15]);
-    }
-    // single horizontal usb opening
-    if(type == "single_horizontal_a" && rotation == 0) {
-        place(loc_x-.75,loc_y-6,loc_z,15,7.5,rotation,side)
-            cube([15.5,8,8]);
-    }
-    if(type == "single_horizontal_a" && rotation == 90) {
-        place(loc_x-6,loc_y-.5,loc_z,15,7.5,rotation,side)
-            cube([15,8,7.5]);
-    }
-    if(type == "single_horizontal_a" && rotation == 180) {
-        place(loc_x-.5,loc_y+12.5,loc_z,15,7.5,rotation,side)
-            cube([15,8,7.5]);
-    }
-    if(type == "single_horizontal_a" && rotation == 270) {
-        place(loc_x+12.5,loc_y-.5,loc_z,15,7.5,rotation,side)
-            cube([15,8,7.5]);
-    }
-    // single horizontal usbc opening
-    if(class == "usbc" && type == "single_horizontal" && rotation == 0 && side == "top") {
-        place(loc_x+1.5,loc_y+2,loc_z+1.75,6,8,rotation,side)
-            rotate([90,0,0]) slot(3.75,6,8);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 90 && side == "top") {
-        place(loc_x+2,loc_y+1.5,loc_z+1.75,6,8,rotation,side)
-            rotate([90,0,0]) slot(3.75,6,8);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 180 && side == "top") {
-        place(loc_x+1.5,loc_y-3-adjust,loc_z+2,6,8,rotation,side)
-            rotate([90,0,0]) slot(3.75,6,8);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 270 && side == "top") {
-        place(loc_x-3-adjust,loc_y+1.5,loc_z+1.75,6,8,rotation,side)
-            rotate([90,0,0]) slot(3.75,6,8);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 0 && side == "bottom") {
-        place(loc_x+1.5,loc_y+2,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(3.75,6,8);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 90 && side == "bottom") {
-        place(loc_x-3-adjust,loc_y+1.5,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(3.75,6,8);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 180 && side == "bottom") {
-        place(loc_x+1.5,loc_y-3-adjust,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(3.75,6,8);
-    }
-    if(class == "usbc" && type == "single_horizontal" && rotation == 270 && side == "bottom") {
-        place(loc_x+2,loc_y+1.5,loc_z-3.25,6,8,rotation,side)
-            rotate([90,0,0]) slot(3.75,6,8);
-    }
-    // single horizontal usbc opening, lifted and enlarged for Lichee RV SoM
-    // TODO: implement other directions
-    if(class == "usbc" && type == "single_horizontal_on_licheerv" && rotation == 0 && side == "top") {
-        place(loc_x+1.5,loc_y+2,loc_z+5.05,6,8,rotation,side)
-            rotate([90,0,0]) slot(6,8,10);
-    }
-    // single vertical usbc opening
-    if(class == "usbc" && type == "single_vertical" && rotation == 0 && side == "top") {
-        place(loc_x+1.5,loc_y+2,loc_z+1.75,6,8,rotation,side)
-            translate([.25,0,6.25]) rotate([90,90,0]) slot(3.75,5.5,8);
-    }
-    if(class == "usbc" && type == "single_vertical" && rotation == 90 && side == "top") {
-        place(loc_x+2,loc_y+1.5,loc_z+1.75,6,8,rotation,side)
-            translate([.25,0,5.75]) rotate([90,90,0]) slot(3.75,5.5,8);
-    }
-    if(class == "usbc" && type == "single_vertical" && rotation == 180 && side == "top") {
-        place(loc_x+1.5,loc_y-3-adjust,loc_z+2,6,8,rotation,side)
-            translate([.25,0,5.75]) rotate([90,90,0]) slot(3.75,5.5,8);
-    }
-    if(class == "usbc" && type == "single_vertical" && rotation == 270 && side == "top") {
-        place(loc_x-3-adjust,loc_y+1.5,loc_z+1.75,6,8,rotation,side)
-            translate([.25,0,5.75]) rotate([90,90,0]) slot(3.75,5.5,8);
-    }
-    // ir opening
-    if(type == "ir_1" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side)
-            translate([3.5,2,7.5]) rotate([90,0,0]) cylinder(d=6, h=15);
-    }
-    if(type == "ir_1" && rotation == 90) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side)
-            translate([2.5,2,7.5]) rotate([90,0,0]) cylinder(d=6, h=15);
-    }
-    if(type == "ir_1" && rotation == 180) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side)
-            translate([2.5,5,6.5]) rotate([90,0,0]) cylinder(d=6, h=15);
-    }
-    if(type == "ir_1" && rotation == 270) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side)
-            translate([3.375,5,7.5]) rotate([90,0,0]) cylinder(d=6, h=15);
-    }
-    // switch opening
-    if(type == "slide_4x9" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,4,9,rotation,side)
-            translate([0,-6,.25]) cube([9,8,4]);
-    }
-    if(type == "slide_4x9" && rotation == 90) {
-        place(loc_x,loc_y,loc_z,4,9,rotation,side)
-            translate([-5,-6,.25]) cube([9,8,4]);
-    }
-    if(type == "slide_4x9" && rotation == 180) {
-        place(loc_x,loc_y,loc_z,4,9,rotation,side)
-            translate([-5,-.5,.25]) cube([9,8,4]);
-    }
-    if(type == "slide_4x9" && rotation == 270) {
-        place(loc_x,loc_y,loc_z,4,9,rotation,side)
-            translate([0,-.75,.25]) cube([9,8,4]);
-    }
-    // rj45-usb2_double opening
-    if(type == "rj45-usb2_double" && rotation == 0) {
-        place(loc_x,loc_y-6,loc_z,19,28,rotation,side)
-            cube([19,8,31]);
-    }
-    if(type == "rj45-usb2_double" && rotation == 90) {
-        place(loc_x-6,loc_y,loc_z,19,28,rotation,side)
-            cube([19,8,31]);
-    }
-    if(type == "rj45-usb2_double" && rotation == 180) {
-        place(loc_x,loc_y+6,loc_z,19,28,rotation,side)
-            cube([19,8,31]);
-    }
-    if(type == "rj45-usb2_double" && rotation == 270) {
-        place(loc_x+6,loc_y,loc_z,19,28,rotation,side)
-            cube([19,8,31]);
-    }
-    // rj45-usb3_double opening
-    if(type == "rj45-usb3_double" && rotation == 0) {
-        place(loc_x-.25,loc_y-6,loc_z,19.5,28,rotation,side)
-            cube([19.5,8,31.25]);
-    }
-    if(type == "rj45-usb3_double" && rotation == 90) {
-        place(loc_x-6,loc_y-.25,loc_z,19.5,28,rotation,side)
-            cube([19.5,8,31.25]);
-    }
-    if(type == "rj45-usb3_double" && rotation == 180) {
-        place(loc_x+.25,loc_y+6,loc_z,19.5,28,rotation,side)
-            cube([19.5,8,31.25]);
-    }
-    if(type == "rj45-usb3_double" && rotation == 270) {
-        place(loc_x+6,loc_y-.25,loc_z,19.5,28,rotation,side)
-            cube([19.5,8,31.25]);
-    }
-    // out-in-spdif opening
-    if(type == "out-in-spdif" && rotation == 0) {
-        place(loc_x-.1,loc_y-6,loc_z,13,21.65,rotation,side)
-            cube([13,8,35.5]);
-    }
-    if(type == "out-in-spdif" && rotation == 90) {
-        place(loc_x-6,loc_y-.1,loc_z,13,21.65,rotation,side)
-            cube([13,8,35.5]);
-    }
-    if(type == "out-in-spdif" && rotation == 180) {
-        place(loc_x-.2,loc_y+6,loc_z,13,21.65,rotation,side)
-            cube([13,8,35.5]);
-    }
-    if(type == "out-in-spdif" && rotation == 270) {
-        place(loc_x+6,loc_y-.1,loc_z,13,21.65,rotation,side)
-            cube([13,8,35.5]);
-    }
-    // dp-hdmi_a opening
-    if(type == "dp-hdmi_a" && rotation == 0) {
-        place(loc_x-.5,loc_y-6,loc_z,19,18,rotation,side)
-            cube([19,8,19.25]);
-    }
-    if(type == "dp-hdmi_a" && rotation == 90) {
-        place(loc_x-6,loc_y-.5,loc_z,19,18,rotation,side)
-            cube([19,8,19.25]);
-    }
-    if(type == "dp-hdmi_a" && rotation == 180) {
-        place(loc_x-.5,loc_y+6,loc_z,19,18,rotation,side)
-            cube([19,8,19.25]);
-    }
-    if(type == "dp-hdmi_a" && rotation == 270) {
-        place(loc_x+6,loc_y-.5,loc_z,19,18,rotation,side)
-            cube([19,8,19.25]);
-    }
-    // sata_encl_power opening
-    if(type == "sata_encl_power" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,38.5,7.5,rotation,side)
-            translate([1,14,3]) rotate([90,0,0]) slot(7.5,38.5,10);
-    }
-    if(type == "sata_encl_power" && rotation == 90) {
-        place(loc_x,loc_y,loc_z,38.5,7.5,rotation,side)
-            translate([-1,14,3]) rotate([90,0,0]) slot(7.5,38.5,10);
-    }
-    if(type == "sata_encl_power" && rotation == 180) {
-        place(loc_x,loc_y,loc_z,38.5,7.5,rotation,side)
-            translate([-1,8,3]) rotate([90,0,0]) slot(7.5,38.5,10);
-    }
-    if(type == "sata_encl_power" && rotation == 270) {
-        place(loc_x,loc_y,loc_z,38.5,7.5,rotation,side)
-            translate([1,8,3]) rotate([90,0,0]) slot(7.5,38.5,10);
-    }
-    // audio jack opening
-    if(type == "jack_3.5" && rotation == 0 && side == "top") {
-        place(loc_x,loc_y,loc_z+.25,7.5,7.5,rotation,side) 
-            union() {
-                translate([3.15,2,2]) rotate([90,0,0]) cylinder(d=7, h=8);
-                translate([-.5,-.5,0]) cube([7.5,2.5,4.5]);
-            }
-    }
-    if(type == "jack_3.5" && rotation == 90 && side == "top") {
-        place(loc_x,loc_y,loc_z,7.5,7.5,rotation,side)
-            union() {
-                translate([4.1,2,2]) rotate([90,0,0]) cylinder(d=7, h=8);
-                translate([.5,-.5,0]) cube([7.5,2.5,4.5]);
-            }
-    }
-    if(type == "jack_3.5" && rotation == 180 && side == "top") {
-        place(loc_x,loc_y,loc_z,7.5,7.5,rotation,side) 
-            union() {
-                translate([4.1,-2.5,2]) rotate([90,0,0]) cylinder(d=7, h=8);
-                translate([.5,-5,0]) cube([7.5,2.5,4.5]);
-            }
-    }
-    if(type == "jack_3.5" && rotation == 270 && side == "top") {
-        place(loc_x,loc_y,loc_z,7.5,7.5,rotation,side)
-            union() {
-                translate([3.15,-2.5,2]) rotate([90,0,0]) cylinder(d=7, h=8);
-                translate([-.5,-5,0]) cube([7.5,2.5,4.5]);
-            }
-    }
-    if(type == "jack_3.5" && rotation == 0 && side == "bottom") {
-        place(loc_x-1,loc_y,loc_z-1.5,7.5,7.5,rotation,side) 
-            union() {
-                translate([3.15,2,2]) rotate([90,0,0]) cylinder(d=7, h=8);
-                translate([-.5,-.5,0]) cube([7.5,2.5,4.5]);
-            }
-    }
-    if(type == "jack_3.5" && rotation == 90 && side == "bottom") {
-        place(loc_x+4.1,loc_y,loc_z-1.5,7.5,7.5,rotation,side)
-            union() {
-                translate([4.1,2,2]) rotate([90,0,0]) cylinder(d=7, h=8);
-                translate([.5,-.5,0]) cube([7.5,2.5,4.5]);
-            }
-    }
-    if(type == "jack_3.5" && rotation == 180 && side == "bottom") {
-        place(loc_x-1,loc_y,loc_z-1.5,7.5,7.5,rotation,side) 
-            union() {
-                translate([4.1,-2.5,2]) rotate([90,0,0]) cylinder(d=6.5, h=8);
-                translate([.5,-5,0]) cube([7.5,2.5,4.5]);
-            }
-    }
-    if(type == "jack_3.5" && rotation == 270 && side == "bottom") {
-        place(loc_x+4.1,loc_y,loc_z-1.5,7.5,7.5,rotation,side)
-            union() {
-                translate([3,-2.5,2]) rotate([90,0,0]) cylinder(d=7, h=8);
-                translate([-.5,-5,0]) cube([7.5,2.5,4.5]);
-            }
-    }
-    // button opening
-    if(type == "momentary_6x6x4") {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side) 
-            translate([3,3,4]) rotate([0,0,0]) cylinder(d=5, h=10);
-    }    
-    if(type == "momentary_4x2x1" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side) 
-            translate([2,1.5,1.5]) rotate([270,0,0]) cylinder(d=4, h=10);
-    }    
-    if(type == "momentary_4x2x1" && rotation == 180) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side) 
-            translate([4,4,1.5]) rotate([90,0,0]) cylinder(d=4, h=10);
-    }    
-    if(type == "momentary_6x6x4_90" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side) 
-        union() {
-            translate([3,-2.5,3]) rotate([90,0,0]) cylinder(d=5, h=8);
-            translate([-.5,-3.75,0]) cube([7,2.5,6.5]);
-        }
-    }    
-    if(type == "momentary_6x6x4_90" && rotation == 90) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side) 
-        union() {
-            translate([3,-2.5,3]) rotate([90,0,0]) cylinder(d=5, h=8);
-            translate([-.5,-3.75,0]) cube([7,2.5,6.5]);
-        }
-    }    
-    if(type == "momentary_6x6x4_90" && rotation == 180) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side) 
-        union() {
-            translate([3,-2.5,3]) rotate([90,0,0]) cylinder(d=5, h=8);
-            translate([-.5,-3.75,0]) cube([7,2.5,6.5]);
-        }
-    }    
-    if(type == "momentary_6x6x4_90" && rotation == 270) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side) 
-        union() {
-            translate([3,-2.5,3]) rotate([90,0,0]) cylinder(d=5, h=8);
-            translate([-.5,-3.75,0]) cube([7,2.5,6.5]);
-        }
-    }    
-    if(type == "momentary_4.5x3.5x2.5_90" && side == "top" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,4.5,3.5,rotation,side)
-            translate([2.25,0,1.8]) rotate([90,0,0]) cylinder(d=3.5, h=8);
-    }
-    if(type == "momentary_4.5x3.5x2.5_90" && side == "top" && rotation == 90) {
-        place(loc_x,loc_y,loc_z,4.5,3.5,rotation,side)
-            translate([2.25,0,1.8]) rotate([90,0,0]) cylinder(d=3.5, h=8);
-    }
-    if(type == "momentary_4.5x3.5x2.5_90" && side == "top" && rotation == 180) {
-        place(loc_x,loc_y,loc_z,4.5,3.5,rotation,side)
-            translate([2.25,1,1.8]) rotate([90,0,0]) cylinder(d=3.5, h=8);
-    }
-    if(type == "momentary_4.5x3.5x2.5_90" && side == "top" && rotation == 270) {
-        place(loc_x,loc_y,loc_z,4.5,3.5,rotation,side)
-            translate([2.25,1,1.8]) rotate([90,0,0]) cylinder(d=3.5, h=8);
-    }
-    if(type == "momentary_4.5x3.5x2.5_90" && side == "bottom" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,4.5,3.5,rotation,side)
-            translate([2.25,0,3.25]) rotate([90,0,0]) cylinder(d=3.5, h=8);
-    }
-    if(type == "momentary_4.5x3.5x2.5_90" && side == "bottom" && rotation == 90) {
-        place(loc_x,loc_y,loc_z,4.5,3.5,rotation,side)
-            translate([2.25,1.25,3.25]) rotate([90,0,0]) cylinder(d=3.5, h=8);
-    }
-    if(type == "momentary_4.5x3.5x2.5_90" && side == "bottom" && rotation == 180) {
-        place(loc_x,loc_y,loc_z,4.5,3.5,rotation,side)
-            translate([2.25,1.25,3.25]) rotate([90,0,0]) cylinder(d=3.5, h=8);
-    }
-    if(type == "momentary_4.5x3.5x2.5_90" && side == "bottom"&& rotation == 270) {
-        place(loc_x,loc_y,loc_z,4.5,3.5,rotation,side)
-            translate([2.25,0,3.25]) rotate([90,0,0]) cylinder(d=3.5, h=8);
-    }
-    if(type == "momentary_7x3x3_90" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,7,3,rotation,side) 
-            translate([0,-6,0]) cube([7,8,3]);
-    }    
-    if(type == "momentary_7x3x3_90" && rotation == 90) {
-        place(loc_x,loc_y,loc_z,7,3,rotation,side) 
-            translate([0,-6,0]) cube([7,8,3]);
-    }    
-    if(type == "momentary_7x3x3_90" && rotation == 180) {
-        place(loc_x,loc_y,loc_z,7,3,rotation,side) 
-            translate([0,-6,0]) cube([7,8,3]);
-    }    
-    if(type == "momentary_7x3x3_90" && rotation == 270) {
-        place(loc_x,loc_y,loc_z,7,3,rotation,side) 
-            translate([0,-6,0]) cube([7,8,3]);
-    }    
-    if(type == "audio_micro" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,7.5,7.5,rotation,side) 
-            translate([0,4,0]) cube([7.5,8,4]);
-    }
-    if(type == "audio_micro" && rotation == 90) {
-        place(loc_x,loc_y,loc_z,7.5,7.5,rotation,side)
-            translate([0,4,0]) cube([7.5,8,4]);
-    }
-    if(type == "m1_oem" && rotation == 0) {
-        place(loc_x,loc_y,loc_z,6,6,rotation,side) 
-        union() {
-            translate([8.75,7.5,-20]) rotate([0,0,90]) slot(3,3,8);
-            translate([80,7.5,-20]) rotate([0,0,90]) slot(3,3,8);
-            translate([8.75,39.5,-20]) rotate([0,0,90]) slot(3,3,8);
-            translate([80,39.5,-20]) rotate([0,0,90]) slot(3,3,8);
-            translate([8.75,79.5,-20]) rotate([0,0,90]) slot(3,3,8);
-            translate([80,79.5,-20]) rotate([0,0,90]) slot(3,3,8);
-            translate([8.75,111.5,-20]) rotate([0,0,90]) slot(3,3,8);
-            translate([80,111.5,-20]) rotate([0,0,90]) slot(3,3,8);
-        }
-    }    
-}
-
-
-// punchout opening
-module punchout(width,depth,gap,thick,fillet,shape) {
-    
-    adjust = .01;
-    $fn=90;
-
-    // slot punchout
-    if(shape == "slot") {
-        difference() {
-            translate([0,0,0]) slot(depth,width,thick);
-            translate([0,0,-adjust]) slot(depth-gap,width,thick+(2*adjust));
-            // cross ties    
-            translate([-1,-(depth/2)-1,-adjust]) cube([2,depth+2,thick+(2*adjust)]);
-            translate([(width/2)-1-(width/4)+4,-(depth/2)-1,-adjust]) cube([2,depth+2,thick+(2*adjust)]);
-            translate([(width/2)-1+(width/4)-4,-(depth/2)-1,-adjust]) cube([2,depth+2,thick+(2*adjust)]);
-            translate([width-1,-(depth/2)-1,-adjust]) cube([2,depth+2,thick+(2*adjust)]);
-            }
-        }
-    if(shape == "rectangle") {
-        difference() {
-            translate([(width/2),(depth/2),thick/2]) 
-                cube_fillet_inside([width,depth,thick], 
-                    vertical=[fillet,fillet,fillet,fillet], 
-                        top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-            translate([(width/2),(depth/2),(thick/2)-adjust]) 
-                cube_fillet_inside([width-gap,depth-gap,thick+(3*adjust)], 
-                    vertical=[fillet,fillet,fillet,fillet], 
-                        top=[0,0,0,0], bottom=[0,0,0,0], $fn=90);
-            // cross ties    
-            translate([-1,(depth/2)-1,-adjust]) cube([gap+2,2,thick+(2*adjust)]);
-            translate([width-4,depth-gap-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
-            translate([2,depth-gap-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
-            translate([width-gap-1,(depth/2)-1,-adjust]) cube([gap+2,2,thick+(2*adjust)]);
-            translate([width-4,-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
-            translate([2,-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
-            }
-        }
-    if(shape == "round") {
-        difference() {
-            translate([(width/2),(width/2),0]) 
-                cylinder(d=width, h=thick); 
-            translate([(width/2),(width/2),-adjust]) 
-                cylinder(d=width-gap, h=thick+2*adjust); 
-            // cross ties    
-            translate([-1,(depth/2)-1,-adjust]) cube([gap+2,2,thick+(2*adjust)]);
-            translate([(width/2)-1,depth-gap-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
-            translate([width-gap-1,(depth/2)-1,-adjust]) cube([gap+2,2,thick+(2*adjust)]);
-            translate([(width/2)-1,-1,-adjust]) cube([2,gap+2,thick+(2*adjust)]);
-            }
-        }
-    }
-
-
-// vent opening
-module vent(width,length,height,gap,rows,columns,orientation) {
-    
-    fillet = width/2;
-    adjust = .01;
-    $fn=90;
-    
-    // vertical orientation
-    if(orientation == "vertical") { rotate([90,0,0])
-        for (r=[0:length+gap:rows*(length+gap)-1]) {
-            for (c=[0:width+(2*gap):(columns*(width+(2*gap)))-1]) {
-                translate ([c,r,-1]) cube([width,length,height]);
-            }
-        }        
-    }
-    // horizontal orientation
-    if(orientation == "horizontal") {
-        for (r=[0:length+(2*gap):rows*(length+gap)]) {
-            for (c=[0:width+(2*gap):(columns*(width+(2*gap)))-1]) {
-                translate ([c,r,-1]) cube([width,length,height]);
-            }
-        }
-    }
-}
-
-// Hex vent opening
-module vent_hex(cells_x, cells_y, thickness, cell_size, cell_spacing, orientation) {
-    xs = cell_size + cell_spacing;
-    ys = xs * sqrt(3/4);
-    rot = (orientation=="vertical") ? 90 : 0;
-
-    rotate([rot,0,0]) translate([cell_size/2, cell_size*sqrt(1/3),-1]) {
-        for (ix = [0 : ceil(cells_x/2)-1]) {
-            for (iy = [0 : 2 : cells_y-1]) {
-                translate([ix*xs, iy*ys,0]) rotate([0,0,90]) 
-                    cylinder(r=cell_size/sqrt(3), h=thickness, $fn=6);
-            }
-        }
-            for (ix = [0 : (cells_x/2)-1]) {
-                for (iy = [1 : 2 : cells_y-1]) {
-                translate([(ix+0.5)*xs, iy*ys,0]) rotate([0,0,90]) 
-                    cylinder(r=cell_size/sqrt(3), h=thickness, $fn=6);
-            }
-        }
-    }
-}
-
-
-// hk power button
-module hk_pwr_button(mask = false) {
-    
-    adjust=.01;
-    $fn = 90;
-
-    if(mask == true) {
-        color("silver") translate([0, 0, -19]) cylinder(h=20, d=16);
-    }
-    else {
-        difference() {
-            union() {
-                // light ring
-                difference() {
-                    color("blue", .6) translate([0, 0, 1.67]) cylinder(h=.1, d=14.75);
-                    color("blue", .6) translate([0, 0, 1.66]) cylinder(h=.2, d=13.75);
-                }
-                // power symbol
-                color("blue", .6) translate([-.5, 0, 1.65]) color("blue", .6) cube([1,3.5,.1]);
-                difference() {
-                    color("blue", .6) translate([0, 0, 1.66]) cylinder(h=.1, d=5.75);
-                    color("blue", .6) translate([0, 0, 1.65]) cylinder(h=.2, d=4.5);
-                    color("blue", .6) translate([-1.75, 0, 1.65]) cube([3.5,4,2]);
-                }
-                // body
-                color("Gainsboro") cylinder(h=1.66, d1=17.75, d2=14.75);
-                color("silver") translate([0, 0, -19]) cylinder(h=19, d=15.8);
-                difference() {
-                    color("steelblue") translate([0, 0, -27.9]) cylinder(h=9, d=15.8);
-                    color("steelblue") translate([-1+15.8/2, -4, -19-9.1]) cube([2,8,6.1]);
-                    color("steelblue") translate([-1-15.8/2, -4, -19-9.1]) cube([2,8,6.1]);
-                }
-                color("white") translate([-3.5, -6, -28]) cube([7,12,2]);
-                
-                // nut
-                difference() {
-                    translate([0, 0, -4.75]) color("Gainsboro", .6) cylinder(h=2.75, d=21.5, $fn=6);
-                    translate([0, 0, -4.75]) color("Gainsboro", .6) cylinder(h=2.75, d=15.8);
-                }
-                // connector pins
-                color("silver") translate([-1.4, -.5, -34.99]) cube([2.8, 1, 7]);
-                color("silver") translate([-1.4, -.5+5, -34.99]) cube([2.8, 1, 7]);
-                color("silver") translate([-1.4, -.5-5, -34.99]) cube([2.8, 1, 7]);
-                color("silver") translate([-1.4-1.75, -.5+1.75, -34.99]) cube([1, 2.8, 7]);
-                color("silver") translate([-1.4+3.5, -.5+1.75, -34.99]) cube([1, 2.8, 7]);
-            }
-         }
-    }
-}
-
-
-// @mctom's odroid-h3 gpio port extender
-module h3_port_extender(style, mask = false) {
-    
-    adjust=.01;
-    $fn = 90;
-
-    if(style == "header") {
-        if(mask == true) {
-            translate([-20, 6.25, 15]) cube([12, 7.5, 14.75]);
-            translate([-20, 15.875, 15]) cube([12, 7.5, 14.75]);
-            translate([-20, 25.375, 15]) cube([12, 7.5, 14.75]);
-            translate([-20, 17, 32.2]) rotate([0, 90, 0]) cylinder(d=3.5, h=12);
-        }
-        else {
-            // gpio 24 pin front position
-            color("silver") translate([1.6, 188.5, 84]) rotate([90, 0, 270]) import("stl/h3_port_extender.stl");
-//            color("dimgrey") translate([-3, 15.75, 0.25]) rotate([90, 180, 180]) import("stl/header_f_2x12_90.stl");
-            translate([0, 2, 8.25]) rotate([0, 180, 0]) header_f(12,8);
-            translate([-2.54, 2, 8.25]) rotate([0, 180, 0]) header_f(12,8);
-            color("dimgrey") translate([-2.5, 0, 29.5]) rotate([270, 0, 90]) import("stl/header_2x2_90.stl");
-        }
-    }
-    if(style == "remote") {
-        if(mask == true) {
-            translate([-19, 6.25, 15]) cube([12,7.5,14.75]);
-            translate([-19, 15.875, 15]) cube([12,7.5,14.75]);
-            translate([-19, 25.375, 15]) cube([12,7.5,14.75]);
-            translate([-19, 17, 32.2]) rotate([0,90,0]) cylinder(d=2.5, h=12);
-            translate([-19, 17, 4.6]) rotate([0,90,0]) cylinder(d=2.5, h=12);
-        }
-        else {
-            // gpio 24 pin front position
-            color("silver") translate([1.6, 188.5, 84]) rotate([90, 0, 270]) import("stl/h3_port_extender.stl");
-            color("dimgrey") translate([-2.5, 0, 29.5]) rotate([270, 0, 90]) import("stl/header_2x2_90.stl");
-            color("dimgrey")translate([9,-.5,12.75]) rotate([0,270,90]) import("stl/header_encl_2x5_90.stl");
-            translate([2, 2, 14.08]) rotate([0, 90, 0]) header(12);
-            translate([2, 2, 11.54]) rotate([0, 90, 0]) header(12);
-        }
-    }
-}
-
-
-/*
-// h3_port_extender_holder(part, offset)
-// part = "both","top","bottom"
-// offset = projection from inside wall in mm
-// holder for the @mctom's remote h3 port extender
 */
-module h3_port_extender_holder(part,offset=2) {
 
-    adjust = .01;
-    size = [16-offset,40,5.5];
-    if(part == "bottom" || part == "both") {
-        difference() {
-            translate([-10+offset,-3.5,2]) cube(size);
-            translate([-.25,-.25,-adjust]) cube([2.5, 33.25, 12]);
-            translate([2, 2, -adjust]) cube([10, 28, 12]);
-            translate([-12,(33.25/2)+.25,4.5]) rotate([0,90,0]) cylinder(d=2.7, h=20, $fn=60);
-//            translate([-7,-1.,-adjust]) cylinder(d=4.25, h=20);
-        }
-    }
-    if(part == "top" || part == "both") {
-        difference() {
-            translate([-10+offset,-3.5,29.5]) cube(size);
-            translate([-.25,-.25,28]) cube([2.5, 33.25, 12]);
-            translate([1.5, 2, 27.5-adjust]) cube([10, 28.5, 12]);
-            translate([-12, -4, 28]) cube([20, 13, 10]);
-            translate([1.35, 20, 25.5]) cube([10, 13, 5]);
-            translate([-12,(33.25/2)+.25,32]) rotate([0,90,0]) cylinder(d=2.7, h=20, $fn=60);
-        }
-    }
-}
+include <./mod/add.scad>;
+include <./mod/case_bottom.scad>;
+include <./mod/case_side.scad>;
+include <./mod/case_top.scad>;
+include <./mod/parametric_move.scad>;
+include <./mod/indent.scad>;
+include <./mod/fillets.scad>;
+include <./mod/place.scad>;
+include <./mod/sub.scad>;
 
-// enclosed keyhole
-module keyhole(keysize, mask = false) {
-    
-    adjust=.01;
-    $fn = 90;
-
-    if(mask == true) {
-        union() {
-            translate([0, 0, -adjust]) cylinder(h=keysize[3]+2*adjust, d=keysize[0]);
-            translate([-keysize[1]/2, 0, -adjust]) cube([keysize[1], keysize[2]+keysize[0]/2, keysize[3]+2*adjust]);
-            translate([0, -keysize[1]/2, -adjust]) cube([keysize[2]+keysize[0]/2, keysize[1], keysize[3]+2*adjust]);
-        }
-    }
-    else {
-        difference() {
-            union() {
-                translate([0, 0, -adjust]) 
-                difference() {
-                    difference() {
-                        translate([-keysize[2], -keysize[2], keysize[3]]) cube([keysize[2]*3, keysize[2]*3, 4.5]);
-                        translate([0, -10, 0]) rotate([0, 0, 135]) cube([20, 10, 10]);
-                        translate([keysize[2], keysize[2], -adjust]) cube([keysize[2]*3, keysize[2]*3, keysize[3]+5]);        
-                    }
-                    difference() {
-                        translate([-keysize[2]+2, -keysize[2]+2, keysize[3]-adjust]) 
-                            cube([-4+keysize[2]*3, -4+keysize[2]*3, 3.5]);
-                        translate([2, -10, 0]) rotate([0, 0, 135]) cube([20, 10, 10]);
-                        translate([+keysize[2]-2, keysize[2]-2, -adjust]) 
-                            cube([keysize[2]*3, keysize[2]*3, keysize[3]+5]);        
-                    }
-                }
-                difference() {   
-                    translate([-keysize[2], -keysize[2], 0]) cube([keysize[2]*3, keysize[2]*3, keysize[3]]);
-                    translate([0, -10, -adjust]) rotate([0, 0, 135]) cube([20, 10, 10]);
-                }   
-            }
-            translate([keysize[2], keysize[2], -adjust]) cube([keysize[2]*3, keysize[2]*3, keysize[3]+2*adjust]);        
-            union() {
-                translate([0, 0, -adjust]) cylinder(h=keysize[3]+2*adjust, d=keysize[0]);
-                translate([-keysize[1]/2, 0, -adjust]) cube([keysize[1], keysize[2]+keysize[0]/2, keysize[3]+2*adjust]);
-                translate([0, -keysize[1]/2, -adjust]) cube([keysize[2]+keysize[0]/2, keysize[1], keysize[3]+2*adjust]);
-            }
-        }
-    }
-}
-
-
-// d-sub connector
-module dsub(dsubsize, mask = false) {
-    
-    adjust=.01;
-    $fn = 90;
-
-    if(mask == true) {
-        union() {
-            translate([-1, 1, -.75]) rotate([90,0,0]) slab_r([19,10.5,10], [4,4,4,4]);
-            translate([-4, 1, 4.5]) rotate([90,0,0]) cylinder(h=10, d=3);
-            translate([21, 1, 4.5]) rotate([90,0,0]) cylinder(h=10, d=3);
-        }
-    }
-    else {
-        if(dsubsize[0] == 9 && dsubsize[1] == "female") {
-            translate([8.5,0.4,4.5]) rotate([90,0,0]) import("./stl/db9_f.stl");
-        }
-        if(dsubsize[0] == 9 && dsubsize[1] == "male") {
-            translate([8.5,0.4,4.5]) rotate([90,0,0]) import("./stl/db9_m.stl");
-        }
-    }
-}
-
-
-//
-// nut_holder(nut, style, dia_x, dia_y, height)
-//            nut = "m2", "m2.5", "m3", "m4"
-//            style = "default", "sloped", "trap"
-//            dia_x = top diameter or x size in mm
-//            dia_y = bottom diameter or y size in mm
-//            height = holder height in mm
-//
-module nut_holder(nut, style, dia_x, dia_y, height) {
-
-
-nuts = [[2,4,1.6],         // m2 size, diameter, height
-        [2.5,5,2],         // m2.5 size, diameter, height
-        [3,5.5,2.4],       // m3 size, diameter, height
-        [4,7,3.2]];        // m4 size, diameter, height
-
-$fn = 180;
-    
-    if( style == "default") {
-        difference() {
-            cylinder(d=dia_x, h=height);
-            if(nut == "m2") {
-                translate([0, 0, -1]) cylinder(d=nuts[0][0]+.25, h=height+2);
-                translate([0, 0, 2]) cylinder(d=nuts[0][1]*2/sqrt(3), h=height, $fn=6);
-            }
-            if(nut == "m2.5") {
-                translate([0, 0, -1]) cylinder(d=nuts[1][0]+.25, h=height+2);
-                translate([0, 0, 2]) cylinder(d=nuts[1][1]*2/sqrt(3), h=height, $fn=6);
-            }
-            if(nut == "m3") {
-                translate([0, 0, -1]) cylinder(d=nuts[2][0]+.5, h=height+2);
-                translate([0, 0, 2]) cylinder(d=nuts[2][1]*2/sqrt(3), h=height, $fn=6);
-            }
-            if(nut == "m4") {
-                translate([0, 0, -1]) cylinder(d=nuts[3][0]+.5, h=height+2);
-                translate([0, 0, 2]) cylinder(d=nuts[3][1]*2/sqrt(3), h=height, $fn=6);
-            }
-        }
-    }
-    if( style == "sloped") {
-        difference() {
-            cylinder(d2=dia_x, d1=dia_y, h=height);
-            if(nut == "m2") {
-                translate([0, 0, -1]) cylinder(d=nuts[0][0]+.25, h=height+2);
-                translate([0, 0, 2]) cylinder(d=nuts[0][1]*2/sqrt(3), h=height, $fn=6);
-            }
-            if(nut == "m2.5") {
-                translate([0, 0, -1]) cylinder(d=nuts[1][0]+.25, h=height+2);
-                translate([0, 0, 2]) cylinder(d=nuts[1][1]*2/sqrt(3), h=height, $fn=6);
-            }
-            if(nut == "m3") {
-                translate([0, 0, -1]) cylinder(d=nuts[2][0]+.5, h=height+2);
-                translate([0, 0, 2]) cylinder(d=nuts[2][1]*2/sqrt(3), h=height, $fn=6);
-            }
-            if(nut == "m4") {
-                translate([0, 0, -1]) cylinder(d=nuts[3][0]+.5, h=height+2);
-                translate([0, 0, 2]) cylinder(d=nuts[3][1]*2/sqrt(3), h=height, $fn=6);
-            }
-        }
-    }
-    if( style == "trap") {
-        if(nut == "m2") {
-            difference() {
-                translate([-dia_x/2, -dia_y/2, 0]) cube([dia_x, dia_y, height]);
-                translate([0, 0, -1]) cylinder(d=nuts[0][0]+.25, h=height+2);
-                translate([0, 0, 2]) rotate([0,0,30]) cylinder(d=nuts[0][1]*2/sqrt(3), h=nuts[0][2], $fn=6);
-                translate([-nuts[0][1]/2, 0, 2]) cube([nuts[0][1], dia_x, nuts[0][2]]);
-            }
-        }
-        if(nut == "m2.5") {
-            difference() {
-                translate([-dia_x/2, -dia_y/2, 0]) cube([dia_x, dia_y, height]);
-                translate([0, 0, -1]) cylinder(d=nuts[1][0]+.325, h=height+2);
-                translate([0, 0, 2]) rotate([0,0,30]) cylinder(d=nuts[1][1]*2/sqrt(3), h=nuts[1][2], $fn=6);
-                translate([-nuts[1][1]/2, 0, 2]) cube([nuts[1][1], dia_x, nuts[1][2]]);
-            }
-        }
-        if(nut == "m3") {
-            difference() {
-                translate([-dia_x/2, -dia_y/2, 0]) cube([dia_x, dia_y, height]);
-                translate([0, 0, -1]) cylinder(d=nuts[2][0]+.5, h=height+2);
-                translate([0, 0, 2]) rotate([0,0,30]) cylinder(d=nuts[2][1]*2/sqrt(3), h=nuts[2][2], $fn=6);
-                translate([-nuts[2][1]/2, 0, 2]) cube([nuts[2][1], dia_x, nuts[2][2]]);
-            }
-        }
-        if(nut == "m4") {
-            difference() {
-                translate([-dia_x/2, -dia_y/2, 0]) cube([dia_x, dia_y, height]);
-                translate([0, 0, -1]) cylinder(d=nuts[3][0]+.5, h=height+2);
-                translate([0, 0, 2]) rotate([0,0,30]) cylinder(d=nuts[3][1]*2/sqrt(3), h=nuts[3][2], $fn=6);
-                translate([-nuts[3][1]/2, 0, 2]) cube([nuts[3][1], dia_x, nuts[3][2]]);
-            }
-        }
-    }
-}
-
-
-module cableholder_spacer() {
-    
-    size = [9.4,16,6];
-    $fn = 90;
-    translate([0,size[2]/2,-5]) rotate([90,0,0])
-    difference() {
-        translate([size[0]/2,size[0]/2,0]) rotate([0,0,90]) slot(size[0],size[1],size[2]);
-        translate([-1,5,3]) rotate([0,90,0]) cylinder(d=3.2, h=12);
-        translate([-1,7.5,-1]) cube([2,20,9]);
-        translate([5,9.5,-1]) rotate([0,0,90]) slot(4.5,11,9);
-        translate([3,20,-1]) rotate([0,0,45]) cube([2,6,9]);
-    }
-}
-
-
-module hk_m1s_case_holes(type="landscape") {
-    
-    if(type == "portrait") {
-        cylinder(d=3, h=6);
-        translate([0,107,0]) cylinder(d=3, h=6);
-        translate([58,0,0]) cylinder(d=3, h=6);
-        translate([58,107,0]) cylinder(d=3, h=6);
-    }
-    else {
-        cylinder(d=3, h=6);
-        translate([0,58,0]) cylinder(d=3, h=6);
-        translate([107,0,0]) cylinder(d=3, h=6);
-        translate([107,58,0]) cylinder(d=3, h=6);
-    }
-}
-
-
-// hk m1s ups
-module hk_m1s_ups() {
-    
-    pcb_size = [115,32,1.62];
-
-    adj = .01;
-    $fn = 90;
-    
-    difference() {
-        union() {
-            color("#008066") slab(pcb_size,4);
-            color("#fee5a6") translate([3.5,3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
-            color("#fee5a6") translate([3.5,pcb_size[1]-3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
-            color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
-            color("#fee5a6") translate([pcb_size[0]-3.5,pcb_size[1]-3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
-        }
-        color("#fee5a6") translate([3.5,3.5,-1]) cylinder(d=4, h=4);
-        color("#fee5a6") translate([3.5,pcb_size[1]-3.5,-1]) cylinder(d=4, h=4);
-        color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-1]) cylinder(d=4, h=4);
-        color("#fee5a6") translate([pcb_size[0]-3.5,pcb_size[1]-3.5,-1]) cylinder(d=4, h=4);
-   }
-   // battery and clips
-   color("silver") translate([15,5,pcb_size[2]]) rotate([0,0,270]) battery_clip();
-   color("silver") translate([80,16,pcb_size[2]]) rotate([0,0,90]) battery_clip();
-   translate([13.25,10.5,pcb_size[2]+10.4]) rotate([0,90,0]) battery("18650_convex");
-   
-   translate([86.75,.5,pcb_size[2]]) momentary45x15();
-   translate([97.5,-1,pcb_size[2]]) usbc();
-   
-   translate([35,28,pcb_size[2]]) led("DodgerBlue");
-   translate([40,28,pcb_size[2]]) led("DodgerBlue");
-   translate([45,28,pcb_size[2]]) led("DodgerBlue");
-   translate([50,28,pcb_size[2]]) led("DodgerBlue");
- 
-   translate([113,8,pcb_size[2]]) rotate([0,0,90]) led("green");
-   translate([113,16,pcb_size[2]])  rotate([0,0,90]) led();
-   translate([113,21,pcb_size[2]])  rotate([0,0,90]) led();
-   
-   translate([78,29,pcb_size[2]]) rotate([0,0,270])header(7);
-   translate([78,31.5,pcb_size[2]]) rotate([0,0,270])header(7);
-}
-
-
-// prototype board, ups footprint
-module proto_ups() {
-    
-    pcb_size = [115,32,1.62];
-
-    adj = .01;
-    $fn = 90;
-    
-    union() {
-        difference() {
-            union() {
-                color("#008066") slab(pcb_size,4);
-                color("#fee5a6") translate([3.5,3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
-                color("#fee5a6") translate([3.5,pcb_size[1]-3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
-                color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
-                color("#fee5a6") translate([pcb_size[0]-3.5,pcb_size[1]-3.5,-.1]) cylinder(d=5.5, h=pcb_size[2]+.2);
-            }
-            color("#fee5a6") translate([3.5,3.5,-1]) cylinder(d=4, h=4);
-            color("#fee5a6") translate([3.5,pcb_size[1]-3.5,-1]) cylinder(d=4, h=4);
-            color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-1]) cylinder(d=4, h=4);
-            color("#fee5a6") translate([pcb_size[0]-3.5,pcb_size[1]-3.5,-1]) cylinder(d=4, h=4);
-       }
-       // pads
-       for(r=[5:2.54:30]) {
-        translate([10,r,pcb_size[2]+adj]) pcb_pad(38);
-       }
-   }
-}
-
-
-// prototype board, m1s footprint
-module proto_m1s() {
-    
-    pcb_size = [90,65,1.62];
-
-    adj = .01;
-    $fn = 90;
-    
-    union() {
-        difference() {
-            union() {
-                color("#008066") slab(pcb_size,2);
-                color("#fee5a6") translate([3.5,3.5,-.1]) cylinder(d=4.5, h=pcb_size[2]+.2);
-                color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-.1]) cylinder(d=4.5, h=pcb_size[2]+.2);
-                color("#fee5a6") translate([17.5,52.5,-.1]) cylinder(d=4.5, h=pcb_size[2]+.2);
-                color("#fee5a6") translate([67.5,55.1,-.1]) cylinder(d=4.5, h=pcb_size[2]+.2);
-            }
-            color("#fee5a6") translate([3.5,3.5,-1]) cylinder(d=3, h=4);
-            color("#fee5a6") translate([pcb_size[0]-3.5,3.5,-1]) cylinder(d=3, h=4);
-            color("#fee5a6") translate([17.5,52.5,-1]) cylinder(d=3, h=4);
-            color("#fee5a6") translate([67.5,55.1,-1]) cylinder(d=3, h=4);
-       }
-       // pads
-       for(r=[7:2.54:32]) {
-        translate([10,r,pcb_size[2]+adj]) pcb_pad(28);
-       }
-   }
-}
-
-module battery_clip(bat_dia = 18.4) {
-    
-    mat = .38;
-    width = 9.5;
-    tab = 8.9;
-    bat_holder = bat_dia+2*mat;
-    adj = .1;
-
-    translate([-5.5,0,10.5]) {
-        difference() {
-            translate([0,width,0]) rotate([90,0,0]) cylinder(d=bat_holder, h=9.5);
-            translate([0,width+adj,0]) rotate([90,0,0]) cylinder(d=bat_dia, h=10.5);
-            translate([mat/2-11.1/2,-adj,mat-1.3-bat_dia/2]) cube([11.1-mat,width+2*adj,3]);
-            translate([0,width+adj,0]) rotate([90,-45,0]) cube([bat_dia,bat_dia,bat_holder]);
-        }
-        difference() {
-            translate([-11.1/2,0,-1.3-bat_dia/2]) cube([11.1,width,3]);
-            translate([mat-11.1/2,-adj,mat/2-1.3-bat_dia/2]) cube([11.1-2*mat,width+2*adj,3]);
-        }
-        difference() {
-            translate([-(tab/2),-3.5,-1-bat_dia/2]) rotate([-5,0,0]) cube([tab,3.5,10]);
-            translate([-(tab/2)-adj,-3.5+mat,mat-1-bat_dia/2]) rotate([-5,0,0]) cube([tab+2*adj,3.5+mat,10]);
-        }    
-        translate([0,-2.225,0]) rotate([85,0,0]) cylinder(d=tab, h=mat);
-        difference() {
-            translate([0,-2.75,0]) sphere(d=3);
-            translate([-5,-2.75,-5]) rotate([85,0,0]) cube([tab,10,10]);
-        }
-    }
-}
-
-
-module battery(type) {
-
-    adj = .01;
-    if(type == "18650") {
-        difference() {
-            cylinder(d=18.4, h=65);
-            translate([0,0,65-4]) difference() {
-                cylinder(d=18.5, h=2);
-                cylinder(d=17.5, h=3);
-            }
-        }
-    }
-    if(type == "18650_convex") {
-        difference() {
-            cylinder(d=18.4, h=68);
-            translate([0,0,65-4]) difference() {
-                cylinder(d=18.5, h=2);
-                cylinder(d=17.5, h=3);
-            }
-            translate([0,0,65-adj]) difference() {
-                cylinder(d=18.5, h=3+2*adj);
-                cylinder(d=14.4, h=3+2*adj);
-            }
-        }
-    }
-    if(type == "21700") {
-        difference() {
-            cylinder(d=21, h=70);
-            translate([0,0,70-4]) difference() {
-                cylinder(d=21.1, h=2);
-                cylinder(d=20.1, h=3);
-            }
-        }
-    }
-}
-
-
-// single row pcb pad
-module pcb_pad(pads = 1, style = "round") {
-
-    adjust = .01;
-    $fn = 90;
-    pad_size = 1.25;
-    size_y = 2.54;
-    size_x = 2.54 * (pads-1);                
-    union() {
-        for (i=[0:2.54:size_x]) {
-            if(style == "round") {
-                difference() {
-                    color("#fee5a6") translate ([i,0,0]) cylinder(d=pad_size, h=.125);
-                    color("dimgray") translate([i,0,-adjust]) cylinder(d=.625, h=.125+2*adjust);
-                }
-            }
-            if(style == "square") {
-                difference() {
-                    color("#fee5a6") translate ([i-pad_size/2,-pad_size/2,0]) cube([pad_size, pad_size, .125]);
-                    color("dimgray") translate([i,0,-adjust]) cylinder(d=.625, h=.125+2*adjust);
-                }
-            }
-        }
-    }
-}
-
-
-module led(ledcolor = "red") {
-    
-    color(ledcolor) cube([3,1.5,.4]);
-    color("silver") cube([.5,1.5,.5]);
-    color("silver") translate([2.5,0,0]) cube([.5,1.5,.5]);
-}
-
-
-module m_insert(type="M3", icolor = "#ebdc8b") { //#f4e6c3, #ebdc8b 
-    
-    odiam = type == "M3" ? 4.2 : 3.5;
-    idiam = type == "M3" ? 3 : 2.5;
-    iheight = 4;
-    
-    difference() {
-        color(icolor,.6) cylinder(d=odiam, h=iheight);
-        color(icolor,.6) translate([0,0,-1]) cylinder(d=idiam, h=iheight+2);
-    }
-    for(bearing = [0:10:360]) {
-        color(icolor) translate([-.25+(odiam/2)*cos(bearing),-.25+(odiam/2)*sin(bearing),iheight-1.5]) 
-            rotate([0,0,0]) cube([.5,.5,1.5]);
-    }
-}
-
-
-module usbc() {
-    
-    $fn=90;
-    adj = .01;
-    
-    // usbc horizontal type
-        
-        size_x = 9;
-        size_y = 7;
-        dia = 3.5;
-        diam = 3.75;
-
-        rotate([90, 0, 0])  translate([dia/2, dia/2, -size_y]) union() {    
-            difference () {
-                color("silver")
-                hull() {
-                    translate([0,0,0]) cylinder(d=dia,h=size_y);
-                    translate([size_x-dia,0,0]) cylinder(d=dia,h=size_y);        
-                    }
-                color("silver") translate([0,0,1])
-                hull() {
-                    translate([0,0,0]) cylinder(d=3,h=size_y+.2);
-                    translate([size_x-dia,0,0]) cylinder(d=3,h=size_y+.2);        
-                    }
-            }
-            color("black") translate([0,-1.2/2,.1]) cube([5.5,1.2,6]);
-        }
-    }
+include <./lib/access_panel.scad>;
+include <./lib/art.scad>;
+include <./lib/battery.scad>;
+include <./lib/button.scad>;
+include <./lib/cable_holder.scad>;
+include <./lib/component.scad>;
+include <./lib/custom.scad>;
+include <./lib/fan.scad>;
+include <./lib/fastener.scad>;
+include <./lib/feet.scad>;
+include <./lib/hd.scad>;
+include <./lib/holder.scad>;
+include <./lib/keyhole.scad>;
+include <./lib/oem_hk.scad>;
+include <./lib/pcb_pad.scad>;
+include <./lib/shape.scad>;
+include <./lib/standoff.scad>;
+include <./lib/vent.scad>;