How to convert OBJ to IGES
- Add your .OBJ 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
- Mesh triangles become individual flat surfaces; IGES does not rebuild smooth surfaces from a mesh.
- No textures or materials are carried - IGES is geometry only.
- A high-polygon mesh yields a large IGES file with many surface entities, which can be heavy to open.
Frequently asked questions
How accurate is an OBJ converted to IGES?
IGES is built around surfaces and wireframe, while OBJ is a triangle mesh, so each facet becomes a small flat surface. Curved shapes stay faceted rather than turning into smooth analytic surfaces.
Why convert OBJ to IGES?
IGES is a vendor-neutral CAD exchange standard, so converting lets mesh geometry be read by the many CAD systems that import IGES.
What opens an IGES file?
IGES files open in FreeCAD, CAD Assistant and the Autodesk Viewer, and are used to move part geometry between different CAD programs.
What is lost, and can I 3D print the result?
Textures, materials and color from the OBJ are not part of IGES, and the conversion produces faceted surfaces rather than true solids. For 3D printing, the model would still need converting to STL first.
Programs that convert OBJ: SolidWorks · 3D Object Converter · CrossManager · 3ds Max (3D Studio Max) · Alibre Design Professional · Autoconverter · PolyTrans|CAD+DCC · TransMagic
