293 lines
14 KiB
OpenSCAD
293 lines
14 KiB
OpenSCAD
/*
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This file is part of SBC Case Builder https://github.com/hominoids/SBC_Case_Builder
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Copyright 2022,2023,2024 Edward A. Kisiel hominoid@cablemi.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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Code released under GPLv3: http://www.gnu.org/licenses/gpl.html
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NAME: case_folded
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DESCRIPTION: creates folded case flat blanks for supported designs
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TODO: none
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USAGE: case_folded(case_design, case_style)
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case_design = paper
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case_style = split-top, full-top
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*/
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module case_folded(case_design, case_style) {
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section_position = 2;
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ba = bend_allowance;
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slit_len = pcb_depth < pcb_width ? pcb_depth/10 : pcb_width/10;
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slit_width = material_thickness;
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slit_offset = pcb_depth < pcb_width ? pcb_depth/10 : pcb_width/10;
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fold_height = pcb_tmaxz+bottom_clearence+pcb_z+ba;
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flap_y = 12;
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tab_x = pcb_depth/4;
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tab_y = fold_height/2;
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tab_inset = 6;
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if(case_style == "split-top") {
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// rear
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difference() {
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union() {
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folded_base(fold_height, ba, flap_y, tab_x, tab_y, tab_inset, slit_len, slit_width, slit_offset);
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translate([0, -fold_height-(pcb_depth/2)-ba, 0])
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cube([pcb_width, (pcb_depth/2)+ba, material_thickness]);
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translate([0, pcb_depth+fold_height, 0])
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cube([pcb_width, (pcb_depth/2)+ba, material_thickness]);
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// flaps rear left
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translate([-tab_y, -fold_height+tab_inset-(pcb_depth/2), 0])
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slab_r([tab_y, tab_x, material_thickness], [tab_x/2,tab_x/2,.1,.1]);
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// flaps rear right
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translate([pcb_width, -fold_height-(pcb_depth/2)+tab_inset, 0])
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slab_r([tab_y, tab_x, material_thickness], [.1,.1,tab_x/2,tab_x/2]);
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// flaps front left
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translate([-tab_y, pcb_depth+fold_height-tab_inset+tab_x, 0])
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slab_r([tab_y, tab_x, material_thickness], [tab_x/2,tab_x/2,.1,.1]);
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// flaps front right
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translate([pcb_width, pcb_depth+fold_height-tab_inset+tab_x, 0])
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slab_r([tab_y, tab_x, material_thickness], [.1,.1,tab_x/2,tab_x/2]);
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// flaps left rear
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difference() {
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translate([-(fold_height), 0, 0])
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linear_extrude(material_thickness) polygon([[0, 0],
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[1, (-pcb_depth/4)],
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[(fold_height)-2, (-pcb_depth/4)],
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[(fold_height), 0],
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[0, 0]]);
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translate([-bottom_clearence, 0, section_position]) rotate([90, 0, 270])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// flaps left front
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difference() {
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translate([-(fold_height), pcb_depth, 0])
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linear_extrude(material_thickness) polygon([[0, 0],
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[1, (pcb_depth/4)],
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[(fold_height)-2, (pcb_depth/4)],
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[(fold_height), 0],
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[0, 0]]);
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translate([-bottom_clearence, pcb_depth, pcb_depth+section_position]) rotate([-90, 0, 90])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// flaps right rear
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difference() {
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translate([pcb_width, 0, 0])
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linear_extrude(material_thickness) polygon([[0, 0],
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[2, (-pcb_depth/4)],
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[(fold_height)-1, (-pcb_depth/4)],
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[(fold_height), 0],
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[0, 0]]);
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translate([bottom_clearence+pcb_width, -pcb_width, section_position]) rotate([90, 0, 90])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// flaps right front
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difference() {
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translate([pcb_width, pcb_depth, 0])
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linear_extrude(material_thickness) polygon([[0, 0],
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[2, (pcb_depth/4)],
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[(fold_height)-1, (pcb_depth/4)],
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[(fold_height), 0],
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[0, 0]]);
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translate([bottom_clearence+pcb_width, pcb_width+pcb_depth, section_position+pcb_depth])
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rotate([270, 0, 270]) sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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}
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translate([0, -fold_height, pcb_tmaxz+2+material_thickness]) rotate([180, 0, 0])
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sbc(sbc_model, cooling, 0, "disable", "disable", true);
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translate([0, 2*pcb_depth+fold_height, pcb_tmaxz+2+material_thickness]) rotate([180, 0, 0])
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sbc(sbc_model, cooling, 0, "disable", "disable", true);
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}
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translate([0, -fold_height-(pcb_depth/2)-ba, 0]) cube([pcb_width, 2, material_thickness]);
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translate([0, pcb_depth+fold_height+(pcb_depth/2)-ba, 0]) cube([pcb_width, 2, material_thickness]);
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}
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if(case_style == "full-top" || case_style == "none") {
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// rear
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difference() {
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union() {
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folded_base(fold_height, ba, flap_y, tab_x, tab_y, tab_inset, slit_len, slit_width, slit_offset);
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translate([0, -fold_height-pcb_depth-ba, 0])
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cube([pcb_width, pcb_depth+ba, material_thickness]);
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translate([0, pcb_depth+fold_height, 0])
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cube([pcb_width, (pcb_depth/4)+ba, material_thickness]);
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// flaps rear left
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translate([tab_inset, -fold_height-pcb_depth-tab_y, 0])
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slab_r([tab_x, tab_y, material_thickness], [tab_x/2,.1,.1,tab_x/2]);
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// flaps rear right
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translate([pcb_width-tab_x-tab_inset, -fold_height-pcb_depth-tab_y, 0])
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slab_r([tab_x, tab_y, material_thickness], [tab_x/2,.1,.1,tab_x/2]);
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// flaps left rear
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difference() {
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translate([-(fold_height), 0, 0])
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linear_extrude(material_thickness) polygon([[0, 0],
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[1, (-pcb_depth/4)],
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[(fold_height)-2, (-pcb_depth/4)],
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[(fold_height), 0],
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[0, 0]]);
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translate([-bottom_clearence, 0, section_position]) rotate([90, 0, 270])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// flaps left front
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difference() {
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translate([-(fold_height), pcb_depth, 0])
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linear_extrude(material_thickness) polygon([[0, 0],
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[1, (pcb_depth/4)],
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[(fold_height)-2, (pcb_depth/4)],
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[(fold_height), 0],
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[0, 0]]);
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translate([-bottom_clearence, pcb_depth, pcb_depth+section_position]) rotate([-90, 0, 90])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// flaps right rear
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difference() {
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translate([pcb_width, 0, 0])
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linear_extrude(material_thickness) polygon([[0, 0],
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[2, (-pcb_depth/4)],
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[(fold_height)-1, (-pcb_depth/4)],
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[(fold_height), 0],
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[0, 0]]);
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translate([bottom_clearence+pcb_width, -pcb_width, section_position]) rotate([90, 0, 90])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// flaps right front
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difference() {
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translate([pcb_width, pcb_depth, 0])
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linear_extrude(material_thickness) polygon([[0, 0],
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[2, (pcb_depth/4)],
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[(fold_height)-1, (pcb_depth/4)],
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[(fold_height), 0],
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[0, 0]]);
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translate([bottom_clearence+pcb_width, pcb_width+pcb_depth, section_position+pcb_depth])
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rotate([270, 0, 270]) sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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}
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// top closure tab slits
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translate([tab_inset, pcb_depth+fold_height, 0]) cube([tab_x, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width-tab_x-tab_inset, pcb_depth+fold_height, 0])
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cube([tab_x, slit_width, material_thickness+2*adj]);
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translate([0, -fold_height, pcb_tmaxz+2+material_thickness]) rotate([180, 0, 0])
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sbc(sbc_model, cooling, 0, "disable", "disable", true);
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translate([0, 2*pcb_depth+fold_height, pcb_tmaxz+2+material_thickness]) rotate([180, 0, 0])
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sbc(sbc_model, cooling, 0, "disable", "disable", true);
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}
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}
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}
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// base folding case
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module folded_base(fold_height, ba, flap_y, tab_x, tab_y, tab_inset, slit_len, slit_width, slit_offset) {
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section_position = 2;
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// rear
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difference() {
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translate([0, -fold_height, 0]) cube([pcb_width, fold_height, material_thickness]);
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// folding slits
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translate([slit_offset, -fold_height, -adj])
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cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width/2-slit_len/2, -fold_height, -adj])
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cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width-slit_offset-slit_len, -fold_height, -adj])
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cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([0, -bottom_clearence, section_position]) rotate([90, 0, 0])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// left side
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difference() {
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union() {
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translate([-fold_height, 0, 0])
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cube([fold_height, pcb_depth, material_thickness]);
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translate([-fold_height-flap_y, 0, 0]) cube([flap_y, pcb_depth, material_thickness]);
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}
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// folding slits
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translate([-fold_height, (pcb_depth/2)+tab_inset, -adj])
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cube([slit_width, tab_x, material_thickness+(2*adj)]);
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translate([-fold_height, (pcb_depth/2)-tab_x-tab_inset, -adj])
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cube([slit_width, tab_x, material_thickness+(2*adj)]);
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translate([-bottom_clearence, 0, section_position]) rotate([0, -90, 0])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// front
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difference() {
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translate([0, pcb_depth, 0]) cube([pcb_width, fold_height, material_thickness]);
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// folding slits
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translate([slit_offset, pcb_depth+fold_height-slit_width, -adj])
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cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width/2-slit_len/2, pcb_depth+fold_height-slit_width, -adj])
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cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width-slit_offset-slit_len, pcb_depth+fold_height-slit_width, -adj])
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cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([0, pcb_depth+bottom_clearence, pcb_depth+section_position]) rotate([-90, 0, 0])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// right side
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difference() {
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union() {
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translate([pcb_width, 0, 0]) cube([fold_height, pcb_depth, material_thickness]);
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translate([pcb_width+fold_height, 0, 0])
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cube([flap_y, pcb_depth, material_thickness]);
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}
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// folding slits
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translate([pcb_width+fold_height, (pcb_depth/2)+tab_inset, -adj])
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cube([slit_width, tab_x, material_thickness+(2*adj)]);
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translate([pcb_width+fold_height, (pcb_depth/2)-tab_x-tab_inset, -adj])
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cube([slit_width, tab_x, material_thickness+(2*adj)]);
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translate([pcb_width+bottom_clearence, 0, pcb_width+section_position]) rotate([0, 90, 0])
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sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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}
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// pcb section
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difference() {
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cube([pcb_width, pcb_depth, material_thickness]);
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translate([0, 0, 1+material_thickness]) sbc(sbc_model, "disable", 0, gpio_opening, uart_opening, true);
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// pcb folding slits rear
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translate([slit_offset, 0, -adj]) cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width/2-slit_len/2, 0, -adj]) cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width-slit_offset-slit_len, 0, -adj]) cube([slit_len, slit_width, material_thickness+(2*adj)]);
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// pcb folding slits left
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translate([0, slit_offset, -adj]) cube([slit_width, slit_len, material_thickness+(2*adj)]);
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translate([0, pcb_depth/2-slit_len/2, -adj]) cube([slit_width, slit_len, material_thickness+(2*adj)]);
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translate([0, pcb_depth-slit_offset-slit_len, -adj]) cube([slit_width, slit_len, material_thickness+(2*adj)]);
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// pcb folding slits front
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translate([slit_offset, pcb_depth-slit_width, -adj]) cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width/2-slit_len/2, pcb_depth-slit_width, -adj]) cube([slit_len, slit_width, material_thickness+(2*adj)]);
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translate([pcb_width-slit_offset-slit_len, pcb_depth-slit_width, -adj]) cube([slit_len, slit_width, material_thickness+(2*adj)]);
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// pcb folding slits right
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translate([pcb_width-slit_width, slit_offset, -adj]) cube([slit_width, slit_len, material_thickness+(2*adj)]);
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translate([pcb_width-slit_width, pcb_depth/2-slit_len/2, -adj]) cube([slit_width, slit_len, material_thickness+(2*adj)]);
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translate([pcb_width-slit_width, pcb_depth-slit_offset-slit_len, -adj]) cube([slit_width, slit_len, material_thickness+(2*adj)]);
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}
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} |