Sam Hadow
84 lines
2.2 KiB
OpenSCAD
84 lines
2.2 KiB
OpenSCAD
// Parameters
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$fn = 64;
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// Dimensions
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u_spacing = 19.05;
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// 7U: 1U base + 6 additionals U
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width_base = 18.2 + (6 * u_spacing); // 132.5mm
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width_top = 14.5 + (6 * u_spacing);
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depth_base = 18.2;
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depth_top = 14.5;
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height = 9.0;
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corner_radius = 2.5;
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// Stem
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stem_h = 5.0;
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stem_outer_d = 5.5;
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cross_l = 4.1;
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cross_w1 = 1.25;
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cross_w2 = 1.15;
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// Stab spacing
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// 6.25U standard wire
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stab_spacing = 100;
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module rounded_rectangle(w, d, h, r) {
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hull() {
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translate([r, r, 0]) cylinder(r=r, h=h);
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translate([w - r, r, 0]) cylinder(r=r, h=h);
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translate([r, d - r, 0]) cylinder(r=r, h=h);
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translate([w - r, d - r, 0]) cylinder(r=r, h=h);
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}
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}
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module xda_body() {
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difference() {
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hull() {
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rounded_rectangle(width_base, depth_base, 0.1, corner_radius);
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translate([(width_base - width_top)/2, (depth_base - depth_top)/2, height - 0.1])
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rounded_rectangle(width_top, depth_top, 0.1, corner_radius);
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}
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// Hollow out the inside
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translate([0,0,-0.5])
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hull() {
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translate([1.5, 1.5, 0])
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rounded_rectangle(width_base - 3, depth_base - 3, 0.1, corner_radius/2);
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translate([(width_base - width_top)/2 + 1.5, (depth_base - depth_top)/2 + 1.5, height - 2.5])
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rounded_rectangle(width_top - 3, depth_top - 3, 0.1, corner_radius/2);
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}
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}
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}
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module single_stem_unit() {
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intersection() {
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cylinder(d=stem_outer_d, h=height - 0.5);
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difference() {
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cylinder(d=stem_outer_d, h=height);
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translate([0, 0, -0.1]) {
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cube([cross_l, cross_w1, stem_h * 2], center=true);
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cube([cross_w2, cross_l, stem_h * 2], center=true);
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}
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}
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}
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}
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module all_stems() {
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// Main Center Stem
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translate([width_base/2, depth_base/2, 0])
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single_stem_unit();
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// Stabilizer Stems
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translate([width_base/2 - stab_spacing/2, depth_base/2, 0])
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single_stem_unit();
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translate([width_base/2 + stab_spacing/2, depth_base/2, 0])
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single_stem_unit();
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}
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// Render
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union() {
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xda_body();
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all_stems();
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} |