[OpenSCAD] Unusual hull() and minkowski modelling

wolf wv99999 at gmail.com
Tue Jun 21 05:44:05 EDT 2016


Just before anyone gets too excited about zero-thickness shapes:
if you preview the truncated pyramid

$fn=4;
scale([1,1,0])  cylinder(r1=10, r2=3);

with both Thrown Together and Show Axes activated, you'll see that the
pyramid still has all its 8 corners, 12 edges and 12 triagonal faces. And if
you built its STL, you'll see that its thickness is very small, but not
zero.
On the positive side, when the trick is used to render Parkinbot's Helicoil,
rendering time is only 40% of what it is without the trick.

wolf



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