Import Rhinoceros 3D files in Blender
This add-on uses the
(https://github.com/mcneel/rhino3dm) to read in 3dm files.
This code is currently being written directly for Blender 2.80, even though it is still pre-beta. In general the latest 2.80 build for your platform from Blender Builder should be fine.
rhino3dm.py module is also required. It may be that sometimes master of
rhino3dm.py is required, but not yet uploaded to PyPi. If you want to keep up-to-date the best bet is to build
rhino3dm.py from source.
rhino3dm.py are becoming more stable we'll start tagging this repository and putting up proper releases.
Until then things can, and will, break.