What is an STL file?
STL (Standard Triangle Language) is the most widespread format for 3D models intended for printing. It describes the model as a triangle mesh. Every slicer opens STL files - it's the de-facto standard in 3D printing.
What STL contains
STL file contains only geometry - triangle mesh describing the model surface. No colors, textures, materials or metadata. For color printing use 3MF format.
Where to download models
- MakerWorld - Bambu Lab catalog, quality models
- Printables.com - Prusa community
- Thingiverse - older, rich archive
- Cults3D, Thangs - alternatives
STL vs. OBJ, 3MF, STEP
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