How to convert CATPART to IGS
- Add your .CATPART file - drop it in the box above or click to browse.
- Convert it to .IGS in a few seconds.
- Download your new .IGS file.
What to expect
- The feature tree and parametric editability are not retained; IGES carries final surface and wireframe geometry.
- A watertight solid may arrive as separate surfaces, so you can need to stitch it back into a solid in the target CAD program.
- IGES is an older neutral standard; to 3D-print the result you would convert further to a mesh format such as STL.
Frequently asked questions
Does the 3D shape survive converting `CATPART` to `IGS`?
Yes - IGES carries the model as surfaces and wireframe, so the 3D shape of the part transfers. What it does not carry is the parametric feature history; IGES stores final geometry, not the build steps.
Why convert a CATIA part to IGES?
IGES is a published, vendor-neutral CAD standard, so converting a proprietary
.CATPart to .igs lets other CAD programs import the 3D model without a CATIA license.Where can I open the IGS file?
IGS files open in most CAD packages and in free tools such as FreeCAD and CAD Assistant, which makes the geometry portable across different systems.Are there fidelity caveats with IGES?
Solids are commonly represented as trimmed surface sets, and small gaps or tolerance mismatches can appear where surfaces meet - an inherent limitation of neutral surface exchange rather than a fault of any one part.
Programs that convert CATPART: CATIA · CrossManager · 3ds Max (3D Studio Max) · Alibre Design Professional · PolyTrans|CAD+DCC · TransMagic · Autodesk Inventor · EnSuite
