How to convert 3DM to DWG
- Add your .3DM file - drop it in the box above or click to browse.
- Convert it to .DWG in a few seconds.
- Download your new .DWG file.
What to expect
- NURBS surfaces are often tessellated into mesh faces when exported to
.dwg- verify critical geometry in AutoCAD after conversion. - Units must match: confirm the unit setting in the export dialog or geometry may arrive at the wrong scale in AutoCAD.
- For mechanical CAD targets such as SolidWorks or Inventor,
.stp(STEP) preserves solid geometry more reliably than.dwg.
Frequently asked questions
Can I convert 3DM to DWG without buying Rhinoceros?
Yes - use our free online converter above, or install FreeCAD (free and open-source). Rhinoceros also offers a full-featured 90-day trial.
Will all geometry transfer correctly?
Basic curves, lines, and simple solids usually transfer intact. Complex NURBS surfaces are often converted to meshes, so open the
.dwg in AutoCAD afterwards to check.Which DWG version should I choose in Rhinoceros?
AutoCAD 2013 format is the safest default - it works with AutoCAD 2013 through the current release and with most DWG-compatible applications.
Are layers preserved when converting from 3DM to DWG?
Yes - Rhinoceros maps Rhino layers to AutoCAD layers in the exported file, keeping objects organized on the receiving end.
