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35 lines
1.1 KiB
OpenSCAD
35 lines
1.1 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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// Ball bearings
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//
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BB624 = [4, 13, 5, "624"]; // 624 ball bearing for idlers
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BB608 = [8, 22, 7, "608"]; // 608 bearings for wades
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function ball_bearing_diameter(type) = type[1];
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function ball_bearing_width(type) = type[2];
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module ball_bearing(type) {
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vitamin(str("BB",type[3],": Ball bearing ",type[3]," ",type[0], "mm x ", type[1], "mm x ", type[2], "mm"));
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rim = type[1] / 10;
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color(bearing_color) render() difference() {
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cylinder(r = type[1] / 2, h = type[2], center = true);
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cylinder(r = type[0] / 2, h = type[2] + 1, center = true);
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for(z = [-type[2] / 2, type[2] / 2])
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translate([0,0,z]) difference() {
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cylinder(r = (type[1] - rim) / 2, h = 2, center = true);
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cylinder(r = (type[0] + rim) / 2, h = 3, center = true);
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}
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}
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}
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module bearing_ball(dia) {
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vitamin(str("SB",dia * 10,": Steel ball ",dia, "mm"));
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color(bearing_color) render() sphere(r = dia / 2);
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}
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