I’ve been trying to import 3D models from Vectorworks 2018 into Rhino 6. The DWG export from Vectorworks has generally been working fine for me, but Rhino imports broken models. I tried with three different Vectorworks files, each shows correctly in eDrawings but imported into Rhino, the geometry is completely broken. See attached screenshots.
The Vectorworks 3DM export creates huge files (500 MB vs 3 MB DWG), takes forever to import/export and results in a very laggy model in Rhino consisting only of polysurfaces, so that’s not really an option either.
Possibly a similar problem like this one: Rhino 6: DWG import from Vectorworks geometry damage