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Corrected processing of $fn for round_corners, added two examples

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to skin (from list comp demos) and added another error check to zip.
This commit is contained in:
Adrian Mariano
2019-11-13 18:17:30 -05:00
parent 78197e1909
commit c0d18ab0b1
3 changed files with 34 additions and 8 deletions
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32
skin.scad
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@@ -40,9 +40,9 @@ include <vnf.scad>
// matching = Specifies the algorithm used to match up vertices between profiles, to create faces. Given as a string, one of `"distance"`, `"angle"`, or `"evenly"`. If given as a list of strings, equal in number to the number of profile transitions, lets you specify the algorithm used for each transition. Default: "distance"
// Example(FlatSpin):
// skin([
// move([0,0, 0], p=scale([2,1,1], p=path3d(circle(d=100,$fn=48)))),
// move([0,0,100], p=path3d(circle(d=100,$fn=4))),
// move([0,0,200], p=path3d(circle(d=100,$fn=12))),
// scale([2,1,1], p=path3d(circle(d=100,$fn=48))),
// path3d(circle(d=100,$fn=4),100),
// path3d(circle(d=100,$fn=12),200),
// ]);
// Example(FlatSpin):
// skin([
@@ -74,6 +74,32 @@ include <vnf.scad>
// move([0,0, 0], p=scale([1,2,1],p=path3d(circle(d=50,$fn=36)))),
// move([0,0,100], p=scale([2,1,1],p=path3d(circle(d=50,$fn=36))))
// ], matching="evenly");
// Example:
// fn=32;
// base = round_corners(square([2,4],center=true), measure="radius", size=0.5, $fn=fn);
// skin([
// path3d(base,0),
// path3d(base,2),
// path3d(circle($fn=fn,r=0.5),3),
// path3d(circle($fn=fn,r=0.5),4),
// path3d(circle($fn=fn,r=0.6),4),
// path3d(circle($fn=fn,r=0.5),5),
// path3d(circle($fn=fn,r=0.6),5),
// path3d(circle($fn=fn,r=0.5),6),
// path3d(circle($fn=fn,r=0.6),6),
// path3d(circle($fn=fn,r=0.5),7),
// ],matching="evenly");
// Example: Forma Candle Holder
// r = 50;
// height = 140;
// layers = 10;
// wallthickness = 5;
// holeradius = r - wallthickness;
// difference() {
// skin([for (i=[0:layers-1])
// zrot(-30*i,p=path3d(hexagon(ir=r),i*height/layers))]);
// up(height/layers) cylinder(r=holeradius, h=height);
// }
// Example: Beware Self-intersecting Creases!
// skin([
// for (a = [0:30:180]) let(