(2020-02-27, 22:01)Stefan Frenz Wrote: .... Should have at least 2 objects in csg
Those shouldn't be a problem, I'm not sure why it adds the union though. Could be a bug or it might have to do with some situation where it always has to be a union. Don't know for sure has been along time since I worked on that part of the code
Those 0,0,0 normals in the sticker part mesh might be the result of smoothing failing to calculate a perpendicular vector for tiny triangles. This because LDCad uses a atom sized grid to find vertices (which can float a bit due to rounding errors). So some triangles might end up squashed making them basically lines.
I'll have to investigate this some more.