121 lines
2.2 KiB
OpenSCAD
121 lines
2.2 KiB
OpenSCAD
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//key unit size
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unit = 19.05;
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//height of keycap
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height = 13;
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//minimum mold thickness
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extra = 15;
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//thicknesses of the mold
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side_thickness = 2;
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bottom_thickness = 2;
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total_side = unit + extra*2 + side_thickness * 2;
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function hypo(num) = sqrt(pow(num,2) / 2);
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module bottom_mold(){
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difference(){
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//outer box
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cube([
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total_side,
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total_side,
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5 + bottom_thickness,
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]);
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//inner box
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translate([
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side_thickness,
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side_thickness,
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bottom_thickness
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]) {
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cube([
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unit + extra*2,
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unit + extra*2,
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5,
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]);
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}
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}
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translate([total_side / 2, total_side / 2, 5 + bottom_thickness]) rotate([0,0,45]) difference(){
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//outer box
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cylinder(
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height + extra - 5,
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hypo(total_side),
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hypo(total_side + 3),
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$fn=4
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);
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//inner box
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cylinder(
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height + extra - 5,
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hypo(unit + extra*2),
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hypo(unit + extra*2 + 3),
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$fn=4
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);
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}
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//platform
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translate([
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side_thickness + extra,
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side_thickness + extra,
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bottom_thickness
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]) cube([unit, unit, bottom_thickness]);
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/*
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translate([
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side_thickness + extra + unit / 2,
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side_thickness + extra + unit / 2,
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bottom_thickness*2
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]) rotate([0,0,45]) cylinder(bottom_thickness, unit/2 + 1, unit / 2, $fn=4);*/
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//registration
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translate([
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side_thickness + extra / 2,
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side_thickness + extra / 2,
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bottom_thickness
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]) cylinder(3,extra/3, extra/4, $fn=4);
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//registration
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translate([
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side_thickness + extra / 2,
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side_thickness + unit + extra * 1.5,
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bottom_thickness
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]) cylinder(3,extra/3, extra/4, $fn=4);
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//registration
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translate([
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side_thickness + unit + extra * 1.5,
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side_thickness + unit + extra * 1.5,
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bottom_thickness
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]) cylinder(3,extra/3, extra/4, $fn=4);
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}
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module top_mold(){
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difference(){
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//outer box
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cube([
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total_side,
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total_side,
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height + extra + bottom_thickness,
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]);
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//inner box
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translate([
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side_thickness,
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side_thickness,
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0
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]) {
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cube([
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unit + extra*2,
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unit + extra*2,
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height + extra + bottom_thickness,
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]);
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}
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}
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}
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/*bottom_mold();*/
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translate([50,0,0]) top_mold();
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