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[Format]: .3dm #978
Description
File extension
.3dm
What makes these files?
Rhino - Rhinoceros 3D
What should Filee convert them to?
stl,obj,glb,pdf
Anything else?
Free Online Rhino 3D Viewer (No Signup): https://www.innerscene.com/tools/rhino-viewer
Sample Models: https://www.rhino3d.com/plugins/bongo/docs/sample-models/
Protection
- These files aren't encrypted or copy-protected (DRM), and I can open them without a password.
Activity
github-actions commentedon Nov 1, 2026
@YURUNL, this may be the same request as #532 (same file extension: .3dm). If it's something different, please say how, and a maintainer will take a look.
KnifeLemon commentedon Nov 1, 2026
Thanks for the request and the links, @YURUNL.
As the bot noted, this is the same as #532, which is still open. Rhino
.3dmfiles store NURBS surfaces, so turning them into STL, OBJ or GLB means building meshes from those surfaces first. It's possible with openNURBS, but a bigger piece of work.Closing this as a duplicate. Please follow #532, and add a 👍 there.