diff --git a/mod/case_rack.scad b/mod/case_rack.scad
index d4336f2..1c7ff40 100644
--- a/mod/case_rack.scad
+++ b/mod/case_rack.scad
@@ -47,16 +47,7 @@ if(case_design == "rack" && side == "bottom") {
                                     vertical=[corner_fillet-wallthick,corner_fillet-wallthick,-wallthick,-wallthick],
                                         top=[0,0,0,0], bottom=[edge_fillet,edge_fillet,edge_fillet,edge_fillet,edge_fillet], $fn=90);
                         // case upper panel clamp holes
-                        translate([150-gap-wallthick,-gap-adj,case_z-13+4]) 
-                            panel_clamp("rear", "sloped", "m2", 6, 18, 5, [true,10,2,"default"]);
-                        translate([150-gap-wallthick,depth-gap-(2*wallthick)+adj,
-                            case_z-13+4]) panel_clamp("front", "sloped", "m2", 6, 18, 5, [true,10,2,"default"]);
-                        if(rack_width == 19) { 
-                            translate([300-gap-wallthick,-gap-adj,case_z-13+4]) 
-                                panel_clamp("rear", "sloped", "m2", 6, 18, 5, [true,10,2,"default"]);
-                            translate([300-gap-wallthick,depth-gap-(2*wallthick)+adj,
-                                case_z-13+4]) panel_clamp("front", "sloped", "m2", 6, 18, 5, [true,10,2,"default"]);
-                        }
+                        
 
                     }
                     // rack mounting tabs
@@ -72,35 +63,7 @@ if(case_design == "rack" && side == "bottom") {
                                 cube([2,depth,case_z-floorthick-2]);
                         }
                     }
-                    // case upper panel clamps
-                    translate([150-gap-wallthick,-gap-adj,case_z-13+4]) 
-                        panel_clamp("rear", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-                    translate([150-gap-wallthick,depth-gap-(2*wallthick)+adj,
-                        case_z-13+4]) panel_clamp("front", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-                    if(rack_width == 19) { 
-                        translate([300-gap-wallthick,depth-gap-(2*wallthick)+adj,
-                            case_z-13+4]) panel_clamp("front", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-                        translate([300-gap-wallthick,-gap-adj,case_z-13+4]) 
-                            panel_clamp("rear", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-                    }
-
-                    // case floor panel clamps
-                    translate([150-gap-wallthick,(depth/2)-gap-wallthick,floorthick-adj-.5]) 
-                        panel_clamp("bottom", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-                    if(rack_width == 19) { 
-                        translate([300-gap-wallthick,(depth/2)-gap-wallthick,floorthick-adj-.5]) 
-                            panel_clamp("bottom", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-                    }
-                    // top support
-                    translate([-gap,depth-gap-wallthick-18,case_z-floorthick]) rotate([0,0,270])
-                        panel_clamp("rear", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-                    translate([width-gap-(2*wallthick),depth-gap-wallthick-18,case_z-floorthick])  rotate([0,0,270])
-                        panel_clamp("front", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-    
-                    translate([-gap,18-gap,case_z-floorthick]) rotate([0,0,270])
-                        panel_clamp("rear", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
-                    translate([width-gap-(2*wallthick),18-gap,case_z-floorthick])  rotate([0,0,270])
-                        panel_clamp("front", "sloped", "m2", 6, 18, 5, [false,10,2,"default"]);
+                    
     
                     // additive accessories
                     if(accessory_name != "none") {
@@ -278,73 +241,56 @@ if(case_design == "rack" && side == "bottom") {
                         }
                     }
                 }
-                // case floor panel clamp holes
-                translate([150-gap-wallthick,(depth/2)-gap-wallthick,floorthick-adj-.5]) 
-                    panel_clamp("bottom", "sloped", "m2", 6, 18, 5, [true,10,2,"holes"]);
-                if(rack_width == 19) { 
-                    translate([300-gap-wallthick,(depth/2)-gap-wallthick,floorthick-adj-.5]) 
-                        panel_clamp("bottom", "sloped", "m2", 6, 18, 5, [true,10,2,"holes"]);
-                }
-                // case upper panel clamp holes
-                translate([150-gap-wallthick,-gap-adj,case_z-13+4]) 
-                    panel_clamp("rear", "sloped", "m2", 6, 18, 5, [true,10,2,"holes"]);
-                translate([150-gap-wallthick,depth-gap-(2*wallthick)+adj,
-                    case_z-13+4]) panel_clamp("front", "sloped", "m2", 6, 18, 5, [true,10,2,"holes"]);
-                if(rack_width == 19) { 
-                    translate([300-gap-wallthick,-gap-adj,case_z-13+4]) 
-                        panel_clamp("rear", "sloped", "m2", 6, 18, 5, [true,10,2,"holes"]);
-                    translate([300-gap-wallthick,depth-gap-(2*wallthick)+adj,
-                        case_z-13+4]) panel_clamp("front", "sloped", "m2", 6, 18, 5, [true,10,2,"holes"]);
-                }
+                
 
                 // case lower block assembly holes
                 // rear left
                 translate([150-gap-wallthick-rack_asm_size-adj,-gap-adj+(rack_asm_size/2),
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=rack_asm_hole, h=rack_asm_gap+(2*rack_asm_size)+(2*adj));
                 // rear left nut
                 translate([150-gap-wallthick-rack_asm_size-adj,-gap-adj+(rack_asm_size/2),
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=4*2/sqrt(3), h=2, $fn=6);
                 // rear left recess
                 translate([150-gap-wallthick+rack_asm_size+adj+rack_asm_gap-2,-gap-adj+(rack_asm_size/2),
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=4*2/sqrt(3), h=2);
                 // rear right
                 translate([300-gap-wallthick-rack_asm_size-adj,-gap-adj+(rack_asm_size/2),
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=rack_asm_hole, h=rack_asm_gap+(2*rack_asm_size)+(2*adj));
                 // rear right nut
                 translate([300-gap-wallthick-rack_asm_size-adj,-gap-adj+(rack_asm_size/2),
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=4*2/sqrt(3), h=2, $fn=6);
                 // rear right recess
                 translate([300-gap-wallthick+rack_asm_size+adj+rack_asm_gap-2,-gap-adj+(rack_asm_size/2),
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=4*2/sqrt(3), h=2);
                 // front left
                 translate([150-gap-wallthick-rack_asm_size-adj,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=rack_asm_hole, h=rack_asm_gap+(2*rack_asm_size)+(2*adj));
                 // front left nut
                 translate([150-gap-wallthick-rack_asm_size-adj,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=4*2/sqrt(3), h=2, $fn=6);
                 // front left recess
                 translate([150-gap-wallthick+rack_asm_size+adj+rack_asm_gap-2,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=4*2/sqrt(3), h=2);
                 // front right
                 translate([300-gap-wallthick-rack_asm_size-adj,depth-gap-(2*wallthick)+adj-(rack_asm_size/2),
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=rack_asm_hole, h=rack_asm_gap+(2*rack_asm_size)+(2*adj));
                 // front right nut
                 translate([300-gap-wallthick-rack_asm_size-adj,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=4*2/sqrt(3), h=2, $fn=6);
                 // front right recess
                 translate([300-gap-wallthick+rack_asm_size+adj+rack_asm_gap-2,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
+                    floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0])
                         cylinder(d=4*2/sqrt(3), h=2);
             }
 
@@ -755,89 +701,7 @@ if(case_design == "rack" && side == "bottom") {
         }
     }
     // case lower assembly blocks
-    difference() {
-        union() {
-            // rear left - left side
-            translate([150-gap-wallthick-rack_asm_size,-gap-adj,floorthick-adj]) 
-                cube([rack_asm_size,rack_asm_size,rack_asm_size]);
-            // rear left - right side
-            translate([150-gap-wallthick+rack_asm_gap,-gap-adj,floorthick-adj]) 
-                cube([rack_asm_size,rack_asm_size,rack_asm_size]);
-            if(rack_width == 19) { 
-                // rear right - right
-                translate([300-gap-wallthick+rack_asm_gap,-gap-adj,floorthick-adj]) 
-                    cube([rack_asm_size,rack_asm_size,rack_asm_size]);
-                // rear right - left side
-                translate([300-gap-wallthick-rack_asm_size,-gap-adj,floorthick-adj]) 
-                    cube([rack_asm_size,rack_asm_size,rack_asm_size]);
-            }
-            // front left - left
-            translate([150-gap-wallthick-rack_asm_size,depth-gap-(2*wallthick)-rack_asm_size+adj,
-                floorthick-adj]) cube([rack_asm_size,rack_asm_size,rack_asm_size]);
-            // front left - right
-            translate([150-gap-wallthick+rack_asm_gap,
-                depth-gap-(2*wallthick)-rack_asm_size+adj,floorthick-adj]) 
-                    cube([rack_asm_size,rack_asm_size,rack_asm_size]);
-            if(rack_width == 19) { 
-                // front right - right
-                translate([300-gap-wallthick+rack_asm_gap,
-                    depth-gap-(2*wallthick)-rack_asm_size+adj,floorthick-adj]) 
-                        cube([rack_asm_size,rack_asm_size,rack_asm_size]);
-                // front right - left
-                translate([300-gap-wallthick-rack_asm_size,depth-gap-(2*wallthick)-rack_asm_size+adj,
-                    floorthick-adj]) cube([rack_asm_size,rack_asm_size,rack_asm_size]);
-            }                    
-        }
-        // case lower block assembly holes
-        // rear left
-        translate([150-gap-wallthick-rack_asm_size-adj,-gap-adj+(rack_asm_size/2),
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=rack_asm_hole, h=rack_asm_gap+(2*rack_asm_size)+(2*adj));
-        // rear left nut
-        translate([150-gap-wallthick-rack_asm_size-adj,-gap-adj+(rack_asm_size/2),
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=4*2/sqrt(3), h=2, $fn=6);
-        // rear left recess
-        translate([150-gap-wallthick+rack_asm_size+adj+rack_asm_gap-2,-gap-adj+(rack_asm_size/2),
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=4*2/sqrt(3), h=2);
-        // rear right
-        translate([300-gap-wallthick-rack_asm_size-adj,-gap-adj+(rack_asm_size/2),
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=rack_asm_hole, h=rack_asm_gap+(2*rack_asm_size)+(2*adj));
-        // rear right nut
-        translate([300-gap-wallthick-rack_asm_size-adj,-gap-adj+(rack_asm_size/2),
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=4*2/sqrt(3), h=2, $fn=6);
-        // rear right recess
-        translate([300-gap-wallthick+rack_asm_size+adj+rack_asm_gap-2,-gap-adj+(rack_asm_size/2),
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=4*2/sqrt(3), h=2);
-        // front left
-        translate([150-gap-wallthick-rack_asm_size-adj,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=rack_asm_hole, h=rack_asm_gap+(2*rack_asm_size)+(2*adj));
-        // front left nut
-        translate([150-gap-wallthick-rack_asm_size-adj,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=4*2/sqrt(3), h=2, $fn=6);
-        // front left recess
-        translate([150-gap-wallthick+rack_asm_size+adj+rack_asm_gap-2,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=4*2/sqrt(3), h=2);
-        // front right
-        translate([300-gap-wallthick-rack_asm_size-adj,depth-gap-(2*wallthick)+adj-(rack_asm_size/2),
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=rack_asm_hole, h=rack_asm_gap+(2*rack_asm_size)+(2*adj));
-        // front right nut
-        translate([300-gap-wallthick-rack_asm_size-adj,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=4*2/sqrt(3), h=2, $fn=6);
-        // front right recess
-        translate([300-gap-wallthick+rack_asm_size+adj+rack_asm_gap-2,depth-gap-(2*wallthick)-(rack_asm_size/2)+adj,
-            floorthick-adj+(rack_asm_size/2)]) rotate([0,90,0]) 
-                cylinder(d=4*2/sqrt(3), h=2);
-    }
+    ////////////////////////////////// ok
 }
 if(case_design == "rack" && side == "top") {
     difference() {