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30 lines
660 B
OpenSCAD
30 lines
660 B
OpenSCAD
radius = 20;
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angles = [0, 90];
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width = 5;
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fn = 24;
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module sector(radius, angles, fn = 24) {
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r = radius / cos(180 / fn);
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step = -360 / fn;
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points = concat([[0, 0]],
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[for(a = [angles[0] : step : angles[1] - 360])
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[r * cos(a), r * sin(a)]
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],
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[[r * cos(angles[1]), r * sin(angles[1])]]
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);
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difference() {
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circle(radius, $fn = fn);
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polygon(points);
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}
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}
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module arc(radius, angles, width = 1, fn = 24) {
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difference() {
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sector(radius + width, angles, fn);
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sector(radius, angles, fn);
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}
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}
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linear_extrude(1) arc(radius, angles, width); |