46 lines
1.2 KiB
OpenSCAD
46 lines
1.2 KiB
OpenSCAD
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// OSHW Logo Generator
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// Open Source Hardware Logo : http://oshwlogo.com/
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// -------------------------------------------------
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//
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// Adapted from Adrew Plumb/ClothBot original version
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// just change internal parameters to made dimension control easier
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// a single parameter : logo diameter (millimeters)
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//
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// oshw_logo_2D(diameter) generate a 2D logo with diameter requested
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// just have to extrude to get a 3D version, then add it to your objects
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//
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// cc-by-sa, pierre-alain dorange, july 2012
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// Increase the resolution of default shapes
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$fa = 5; // Minimum angle for fragments [degrees]
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$fs = 0.5; // Minimum fragment size [mm]
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module gear_tooth_2d(d) {
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polygon( points=[
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[0.0,10.0*d/72.0], [0.5*d,d/15.0],
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[0.5*d,-d/15.0], [0.0,-10.0*d/72.0] ] );
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}
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module oshw_logo_2d(d=10.0) {
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rotate(-135) {
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difference() {
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union() {
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circle(r=14.0*d/36.0);
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for(i=[1:7]) assign(rotAngle=45*i+45)
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rotate(rotAngle) gear_tooth_2d(d);
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}
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circle(r=10.0*d/72.0);
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intersection() {
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rotate(-20) square(size=[10.0*d/18.0,10.0*d/18.0]);
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rotate(20) square(size=[10.0*d/18.0,10.0*d/18.0]);
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}
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}
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}
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}
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// usage : oshw_logo_2d(diameter)
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//linear_extrude(height=2)
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oshw_logo_2d(25);
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