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Added interior_fillet()

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Revar Desmera 2019-02-24 21:52:59 -08:00
parent 76302a50de
commit a9cc7b5688
1 changed files with 28 additions and 0 deletions
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28
shapes.scad
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@ -472,6 +472,34 @@ module right_triangle(size=[1, 1, 1], center=false)
}
// Creates a shape that can be unioned into a concave joint between two faces, to fillet them.
// Center this part along the edge to be chamferred and union it in.
// l = length of edge to fillet.
// r = radius of fillet.
// ang = angle between faces to fillet.
// overlap = overlap size for unioning with faces.
// Example:
// union() {
// translate([0,-2,-4]) upcube([20, 4, 24]);
// translate([0,10,-4]) upcube([20, 20, 4]);
// color("green") interior_fillet(l=20, r=10);
// }
module interior_fillet(l=1.0, r=1.0, ang=90, overlap=0.01) {
dy = r/tan(ang/2);
difference() {
translate([0,-overlap/tan(ang/2),-overlap]) {
if (ang == 90) {
translate([0,r/2,r/2]) cube([l,r,r], center=true);
} else {
rotate([90,0,90]) pie_slice(ang=ang, r=dy+overlap, h=l, center=true);
}
}
translate([0,dy,r]) xcyl(l=l+0.1, r=r);
}
}
// Deprecated. Renamed to prismoid.
module trapezoid(size1=[1,1], size2=[1,1], h=1, center=false) {
echo("DEPRECATED: trapezoid() has been renamed to prismoid().");