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Fixed dimensional accuracy of rcube().

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Revar Desmera 2018-10-03 18:22:26 -07:00
parent 366459cb04
commit 97723305fb
1 changed files with 9 additions and 3 deletions
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12
shapes.scad
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@ -158,11 +158,17 @@ module rrect(size=[1,1,1], r=0.25, center=false)
// rcube(size=[5,7,3], r=1); // rcube(size=[5,7,3], r=1);
module rcube(size=[1,1,1], r=0.25, center=false) module rcube(size=[1,1,1], r=0.25, center=false)
{ {
rr = min(r, min(min(size[0]/2-0.01, size[1]/2-0.01), size[2]/2-0.01)); dd = min(2*r, min(size));
$fn=quantup(segs(dd/2), 4);
translate(center? [0,0,0] : size/2) { translate(center? [0,0,0] : size/2) {
minkowski() { minkowski() {
cube([size[0]-2*rr, size[1]-2*rr, size[2]-2*rr], center=true); cube([max(0.01,size[0]-dd), max(0.01,size[1]-dd), max(0.01,size[2]-dd)], center=true);
sphere(rr, $fn=quantup(segs(rr), 4)); rotate_extrude() {
difference() {
circle(dd/2);
left(dd/2) square(dd, center=true);
}
}
} }
} }
} }