Turn CAD STEP files into printable STL meshes in seconds.
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Convert STEP to STL
How to convert STEP to STL Online
Click the "Select STEP file" field and choose a .step or .stp file.
Press Convert STEP to STL. We mesh the geometry and export an STL file.
Click Download STL to save the resulting mesh.
Open the .stl in your slicer or 3D modeling tool for printing or editing.
Tips for best results
Large or complex STEP files may take longer to mesh.
If meshing fails, simplify the CAD model and try again.
Adjust tolerance in your CAD tool before export for cleaner meshes.
Frequently Asked Questions
What formats are supported?
Upload .step or .stp and get .stl output.
Is my file stored?
No. Files are processed in-memory and not persisted.
Why convert STEP to STL?
STL is a widely supported mesh format for 3D printing and visualization, while STEP is a CAD boundary representation ideal for editing.
What about precision?
Meshing approximates curved surfaces; adjust tolerances in your CAD tool before exporting to STEP if you need finer tessellation.
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