[OpenSCAD] F5 works, but F6 gives: ERROR: CGAL error in CGAL_Nef_polyhedron3():

Parkinbot rudolf at parkinbot.com
Thu Jan 18 04:29:17 EST 2018


cacb wrote
> Perhaps one could also say that a polyhedron with fewer than 4 faces is 
> always an error, perhaps with the exception of zero faces in the case of 
> using it within hull()?

I am heavily using this feature 
- to preview 2D-polygons placed in 3D space, 
- to see, what sweep() will do with my code
- to check for selfintersections

Indeed I even don't see much sense in restricting STL output to "proper"
manifolds. Is it part of the format specification? 
 



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