I have imported a .STEP file into Rhino as a polysurface and I am trying to offset it by 2mm. Unfortunately, it has many small fillets, which I know is a bit of a worst-case scenario for offsets. Rhino is able to handle most of it, but leaves a few missing faces scattered about and some non-manifold edges. It’s too many to patch by hand, so I wanted to get suggestions on how to correct or avoid this issue.
It’s my rudimentary understanding that this problem occurs because each face of a polysurface is offset individually (correct me if I’m wrong). Is there way to turn my model into a surface? It doesn’t seem easy given it’s a non-native polysurface. Any other ideas?
offset surfaces.3dm (13.0 MB)