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47 lines
1.4 KiB
OpenSCAD
47 lines
1.4 KiB
OpenSCAD
//
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// Mendel90
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//
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// GNU GPL v2
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// nop.head@gmail.com
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// hydraraptor.blogspot.com
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//
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// For making horizontal holes that don't need support material
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// Small holes can get away without it but they print better with truncated teardrops
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//
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module teardrop_2D(r, truncate = true) {
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difference() {
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union() {
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circle(r = r, center = true);
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translate([0,r / sqrt(2),0])
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rotate([0,0,45])
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square([r, r], center = true);
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}
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if(truncate)
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translate([0, r * 2, 0])
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square([2 * r, 2 * r], center = true);
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}
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}
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module teardrop(h, r, center, truncate = true)
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linear_extrude(height = h, convexity = 2, center = center)
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teardrop_2D(r, truncate);
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module teardrop_plus(h, r, center, truncate = true)
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teardrop(h, r + layer_height / 4, center, truncate);
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module tearslot(h, r, w, center)
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linear_extrude(height = h, convexity = 6, center = center)
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hull() {
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translate([-w/2,0,0]) teardrop_2D(r, true);
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translate([ w/2,0,0]) teardrop_2D(r, true);
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}
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module vertical_tearslot(h, r, l, center = true)
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linear_extrude(height = h, convexity = 6, center = center)
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hull() {
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translate([0, l / 2]) teardrop_2D(r, true);
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translate([0, -l / 2, 0])
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circle(r = r, center = true);
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}
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