Can PrusaSlicer Open FBX Files? How to Import Them
PrusaSlicer is Prusa Research's free slicer for Prusa printers and many others.
Short answer · Convert first
Not directly. PrusaSlicer doesn't import FBX, so convert the file to STL first and import the STL.
Open the FBX to STL converterGetting an FBX file into PrusaSlicer
- 1Check the fileCheck whether the FBX was exported in centimetres or metres, and whether textures were embedded or saved alongside it.
- 2Convert FBX to STLDrop the file into our FBX to STL converter. It runs in your browser, so the model never leaves your computer.
- 3Import into PrusaSlicerFile › Import › Import STL/3MF/STEP/OBJ/AMF… (Ctrl+I).
- 4Check scale and orientationPrusaSlicer works in millimetres and is Z-up. FBX files are usually centimetres, so they normally arrive at the right size.
- 5Place it and sliceLay the flattest face on the plate, confirm the dimensions in the object panel, and slice. Slicers ignore textures and animation.
What comes through
| Shape | Yes, always. |
| Colours and materials | Ignored: PrusaSlicer only uses the shape. |
| Textures | Not used by a slicer. |
| Animation | PrusaSlicer doesn't play animation. |
Things to watch for
- Convert FBX to STL for slicing.
- Press F to lay a model flat on a selected face, and use the Cut tool (C) to split tall models.
Questions
- Does PrusaSlicer support FBX files?
- Not directly. PrusaSlicer doesn't import FBX, so convert the file to STL first and import the STL.
- Why is my FBX model the wrong size in PrusaSlicer?
- FBX files are usually centimetres, while PrusaSlicer works in millimetres. PrusaSlicer asks to scale tiny models up from inches; check the size panel either way.
- What is the best 3D format for PrusaSlicer?
- 3MF and STL are the most reliable choice for PrusaSlicer. If you have a choice when exporting, pick 3MF over FBX.
Menu names follow Prusa Research's current release. Check the official PrusaSlicer documentation if your version differs.
Written with AI assistance by the Renderlyst team in October 2026. Format support reflects each app's current release as we understand it, and we link the official documentation so you can confirm it for your version. Spotted something out of date? Email alishbakhalid766@gmail.com.