Prepare STL geometry for FBX
The STL-to-FBX route uses the STL reader, mesh preparation and the FBX writer. Choose the geometry and representation required by the destination application.
Read the STL triangulation through the OCCT interface. Treat it as surface geometry: the source does not provide a full assembly tree, CAD names, materials or precise BRep surfaces.
Prepare mesh geometry for FBX delivery
Transfer the existing triangles into the target mesh representation. If the destination needs names, colors or a scene hierarchy, author these in the application rather than claiming they were recovered from the STL.
Write the selected mesh geometry with the commercial FBX interface. Prepare the supported scene and placement mapping required by the receiving application. Check appearance and other attributes individually rather than assuming all source properties have an FBX writer mapping.
Validate the converted model
Agree on unit scale and check bounds, face orientation and connected regions. Repackaging a coarse or incomplete STL does not improve its geometric accuracy or establish manufacturing suitability.
Reopen the FBX in the destination and compare scale, orientation, geometry coverage and placements. Verify the actual version and property mapping needed by that application. Retain the engineering source for information that the scene derivative cannot carry.
For repeated jobs, retain the source, preparation settings and representative output checks. Discuss this conversion with the input files, destination application and required geometry and attributes.