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25 lines
457 B
OpenSCAD
25 lines
457 B
OpenSCAD
curved_factor = 79;
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thickness = 2;
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top_d = 179;
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bottom_d = 44;
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difference() {
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rotate_extrude($fn=200)
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difference() {
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polygon(bowl(top_d/2,curved_factor));
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offset(-thickness) polygon(bowl(top_d/2+thickness,curved_factor));
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};
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cylinder(top_d, bottom_d/2, bottom_d/2);
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}
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function point(i, R) = [
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i,
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i*i/R
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];
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function bowl(height, x) = (
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concat(
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[ for (i = [0:1:height]) point(i, x) ],
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[[0,height*height/x]]
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)
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); |