openjscad-aurora-webapp

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// title: Expand()
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function main() {
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   return union(
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      expand(0.2,8, 
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         difference(cube(2),translate([0.3,-0.3,0.3], cube(2)))),
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         difference(cube(2),translate([0.3,-0.3,0.3], cube(2))).translate([-4,0,0]),
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      expand(0.3,8, cube(2)).translate([0,-3,0]),
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         cube(2).translate([-4,-3,0]),
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      expand(0.3,4, cylinder({r: 1, h: 2, fn: 16})).translate([0,4,0]),
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         cylinder({r: 1, h: 2}).translate([-4,4,0])
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   ).scale(10);
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}
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