How to convert CATPART to IGES
- Add your .CATPART file - drop it in the box above or click to browse.
- Convert it to .IGES in a few seconds.
- Download your new .IGES file.
What to expect
- The CATIA feature tree - sketches, pads, pockets, and parameters - is not carried over to IGES; only the resulting solid geometry transfers.
- IGES is an older format; unless the receiving system specifically requires it, STEP (AP214) is more compact and handles solid geometry more reliably.
- Very complex or newer-format
.catpartfiles occasionally produce missing faces in IGES output - always inspect the result before sending it downstream.
Frequently asked questions
Can I convert CATPart to IGES without a CATIA license?
Yes. CAD Assistant (free, by Open Cascade) reads
.catpart files and exports .igs on Windows, macOS, and Linux with no CATIA license needed.Will the parametric feature history transfer to IGES?
No. IGES stores only the resulting geometry - surfaces, edges, and solids. Sketches, formulas, and parameters are not part of the IGES format.
Why does my exported IGES file have missing faces?
Complex or degenerate surfaces in the
.catpart may not translate cleanly; try exporting directly from CATIA, or inspect and repair the geometry before converting.Should I export to IGES or STEP?
Use STEP (AP214) unless the receiving system specifically requires IGES - STEP is more robust, more compact, and universally supported by modern CAD tools.
Programs that convert CATPART: CrossManager · 3ds Max (3D Studio Max) · Alibre Design Professional · PolyTrans|CAD+DCC · TransMagic · Autodesk Inventor · EnSuite · 3D-Tool
