83 lines
2.1 KiB
OpenSCAD
83 lines
2.1 KiB
OpenSCAD
inch=25.4; // treating 1 unit as 1 mm
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module box(size=[1, 1, 1], wall) {
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innerWidth=size.x;
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innerHeight=size.y;
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innerDepth=size.z;
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outerWidth=innerWidth+wall;
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outerHeight=innerHeight+wall+1;
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outerDepth=innerDepth+wall;
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difference() {
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cube([outerWidth, outerDepth, outerHeight],
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center=true);
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translate([0, 0, wall]) {
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cube([innerWidth, innerDepth, innerHeight+0.001],
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center=true);
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}
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}
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// ribs
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for (i = [ -innerDepth/2+2 : 5 : innerDepth/2 ]) {
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translate([innerWidth/2, i, 0]) {
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cube([2, 1, innerHeight-10], center=true);
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}
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translate([-innerWidth/2, i, 0]) {
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cube([2, 1, innerHeight-10], center=true);
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}
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translate([0, i, -innerHeight/2+3]) {
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cube([innerWidth-5, 1, 1], center=true);
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}
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}
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}
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module cutBox(size=[1,1,1], wall) {
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width=size.x;
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height=size.y;
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depth=size.z;
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difference(){
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// define box
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box([width, height, depth], wall);
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// slice off top
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translate([0,-15,1.5*inch]) {
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rotate([15,0,0]) {
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cube([width+wall*2,height*2,depth], center=true);
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}
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}
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}
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}
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module pattern(size=[1,1,1], squareSize, ribSize) {
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width=size.x;
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height=size.y;
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depth=size.z;
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for (i = [ -width/2 : squareSize+ribSize : width/2 ]) {
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for (j = [ -depth/2 : squareSize+ribSize : depth/2 ]) {
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translate([i, 0, j]) {
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cube([squareSize, height, squareSize], center=true);
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}
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}
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}
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}
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width=5.05*inch;
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height=3*inch;
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depth=2*inch;
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wallThickness=3;
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patternMargin=0.10*inch;
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difference() {
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cutBox([width, height, depth], wallThickness);
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translate([0,-depth/2-.05, -inch/1.6]) {
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intersection() {
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cube([width-patternMargin*2-1.5, wallThickness, height-patternMargin*2-inch*1.5],
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center=true);
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rotate([0,45,0]) {
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pattern([200, wallThickness+.05, 200], 10, 5);
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}
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}
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}
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} |