Due to all operations heavily relying on numpy this is one of the fastest STL editing libraries for Python available. If you encounter any issues, make sure you report them here. Be sure to search for ...

The issue does NOT occur when opening a STL file with any of the various methods. This issue only began happening recently. As recently as yesterday, I was able to open 3mf files in BambuStudio ...

If you’ve ever wondered why designers like to work with STEP files and not STL, this video answers that question immediately. A part brought in from a STEP file is closer to the original CAD object.

An imported STEP file is converted to a triangle mesh on import (making it much like a typical .stl or .3mf file) which means that slicing all happens as one would normally expect.