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Open Filament

Supported slicers

PrusaSlicer — import instructions

Download an OpenFilament filament config bundle (.ini) and import it with File → Import → Import Config Bundle…. Menu names follow PrusaSlicer’s English UI / Prusa Knowledge Base.

Beta 2.7+, 2.8+, 2.9+ · .ini

Download for slicer — PrusaSlicer

What OpenFilament exports

A PrusaSlicer config bundle containing one [filament:…] section with inherits (*PLA*, *PET*, *ABS*, *FLEX*), temperatures, extrusion multiplier, volumetric limit, fans, and notes. Pressure advance is a start_filament_gcode hint.

No printer preset, print/process preset, G-code, or RFID data.

Before you begin

  • PrusaSlicer 2.7+ (Beta; tested structurally through 2.9.x fields)
  • Configure your printer in PrusaSlicer first
  • Optional: File → Export → Export Config Bundle for backup

Download from OpenFilament

  1. Find filament → variant → printer/nozzle → profile.
  2. Choose PrusaSlicer on Export / Download for slicer.
  3. Create download and save the .ini file.

Import into PrusaSlicer

  1. Open PrusaSlicer.
  2. Choose File → Import → Import Config Bundle…
  3. Select the OpenFilament .ini file.

Select the imported profile

  • Open Filament Settings.
  • Select the custom preset (brand / product / colour).
  • Confirm printer and nozzle on the plater before slicing.

Connect it to physical filament

PrusaSlicer does not auto-map third-party RFID. Select the imported filament preset on the plater for the spool you loaded. There is no OpenFilament automatic material-system integration.

Verify the import

  • Custom filament appears in the list
  • Temperatures and extrusion multiplier match
  • Slice uses the selected filament

Troubleshooting

  • Nothing imported — use Import Config Bundle, not Import Config.
  • Wrong extension — keep .ini (do not leave as .txt).
  • ASA uses *ABS* inherit — expected for stock templates.

Remove or replace the profile

Remove the custom filament preset in PrusaSlicer, or import a newer OpenFilament .ini. Rename locally if you customized values you want to keep.

Known limitations

  • Beta support
  • Filament-only bundle
  • PA via gcode hint

Sources and compatibility

  • Prusa Knowledge Base article 382766
  • Last structural verification: 2026-08-10
  • Adapter: @open-filament/slicer-prusa

Official website · Supported slicers