How to convert SAT to OBJ
- Add your .SAT file - drop it in the box above or click to browse.
- Convert it to .OBJ in a few seconds.
- Download your new .OBJ file.
What to expect
- Tessellation is permanent - once exported to OBJ the exact ACIS geometry cannot be recovered from that file; keep your source
.satfor any future re-export. - Curved surfaces (fillets, cylinders, spheres) are approximated as facets; coarser settings produce more angular results on small radii.
- OBJ carries only geometry and optional UV and material data - assembly structure, part names, and parametric history from the SAT file are not preserved.
Frequently asked questions
Is converting SAT to OBJ lossless?
No. SAT stores mathematically exact geometry; OBJ stores only polygon meshes, so the tessellation step is a one-way approximation - smooth curves become triangles.
Will the OBJ include textures or materials?
Only if the source
.sat contained material assignments. Most mechanical CAD SAT files carry no texture data, so the exported .mtl file will be empty or contain only basic colours.Why do generic online SAT converters often fail?
The ACIS format is proprietary and version-sensitive, requiring the correct kernel to parse reliably. Use our converter or a dedicated desktop app for consistent results.
The OBJ looks faceted in Blender - how do I fix it?
Enable Auto Smooth in Object Data Properties > Normals (around 30-60°) for a quick cosmetic fix, or re-export from Fusion 360 with higher tessellation refinement for cleaner geometry.
