Models saved in the 3D NURBS CAD format (.3dm) can be probably exported and converted to other 3D model data files, including DAE format (Collada 3D Digital Asset). Good option for this are dedicated 3D model / CAD translation software or even some modeling programs with broad file support.
Home > Search converters: 3dm to dae
Conversion of 3dm file format to dae file format beta
Search for 3dm to dae converter or software able to handle these file types.
Found 2 different conversion types using the same filename extensions.
Conversion 3dm to dae type 1:
Convert from 3D NURBS CAD data file to Collada 3D digital asset exchange data.
Microsoft Windows software 
- convert 3dm to dae on Windows
PolyTrans|CAD+DCC
A 3D CAD translation software
File extension | File type (from-> to) | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|---|
Convert from 3dm file | 3D NURBS CAD data file | No | No | No | No | No | Yes | Yes | No |
to dae file | Collada 3D digital asset exchange data | No | No | No | No | No | Yes | Yes | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned 3dm to dae. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Autoconverter
A converter for 3D formats
On-line services software 
- convert 3dm to dae on web
Online CAD converter
A commercial online CAD converter
Babel3D
An online CAD conversion service
Additional links: Open 3dm file, Open dae file
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Conversion 3dm to dae type 2:
Convert from QuickDraw 3D metafile to Collada 3D digital asset exchange data.
Microsoft Windows software - convert 3dm to dae on Windows
AccuTrans 3D
A CAD 3D geometry translation software
PolyTrans|CAD+DCC
A 3D CAD translation software
Additional links: Open 3dm file, Open dae file
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