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OBJ to STL Converter
OBJ to STL Converter
Upload your OBJ file and get it converted to STL format instantly.
Select OBJ File:
Convert to STL
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Frequently Asked Questions
Why convert OBJ to STL for 3D printing?
STL is the standard format for 3D printing slicers. Most slicers accept STL but not all accept OBJ.
Will colours and textures be in the STL?
Standard STL does not support colours or textures. Only the geometry is exported.
Will the mesh be watertight after conversion?
The converter preserves the original mesh. If the OBJ mesh has holes, the STL will too. Use a mesh repair tool if needed before printing.
Can I use the STL in Tinkercad?
Yes. Tinkercad supports STL import for editing and combining with other shapes.
What is the difference between binary and ASCII STL?
Binary STL is compact and faster to load. ASCII STL is human-readable but larger. Our converter outputs binary STL by default.
Can I scale the model in the STL?
STL files do not store units. Scale the model in your slicer software to the correct size before printing.
What is the maximum polygon count for 3D printing?
Most slicers handle millions of polygons. However, very high polygon counts slow down slicing. Simplify the mesh in Blender or Meshmixer if needed.