What PrusaSlicer workflows need
PrusaSlicer can start from simple geometry, but richer workflows benefit from files that preserve more context.
Slicer Workflows
Best File Format for PrusaSlicer: STL or 3MF?
Learn when STL is enough for PrusaSlicer and when 3MF is better for color, MMU, and richer project handoff.
Last updated 2026-06-17 / Reviewed by PrintNext Team
Workflow
Step 1
Model geometry
Step 2
Color or material plan
Step 3
3MF export
Step 4
Open in PrusaSlicer
Step 5
Verify MMU or material setup
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When STL is enough
STL is enough when the project is simple and you plan to set up printer, materials, supports, and slicing inside PrusaSlicer.
When 3MF is better
3MF is better when you want to preserve color, materials, or project setup before final slicer review.
Recommended PrintNext workflow
Use Color Studio for color planning, export 3MF, then verify material mapping and printer setup in PrusaSlicer before printing.
Color Studio
Launch Color Studio
Use Color Studio to color STL models with your real filament colors, preview the result, and export a ready-to-print 3MF for multi-color 3D printing.
FAQ
Common questions
Should I use STL or 3MF for PrusaSlicer?
Use STL for basic geometry. Use 3MF when the workflow needs color, materials, or project context.
Is 3MF useful for MMU workflows?
It can be, especially when color or material assignments need to survive into slicer verification.
Can I prepare color before PrusaSlicer?
Yes. Prepare color in Color Studio, export 3MF, and verify the file in PrusaSlicer.
Do I need to recheck the 3MF?
Yes. Always confirm colors, material assignments, printer profile, and supports before printing.
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