Filament Transcriber

Convert Bambu Studio .json filament profiles into PrusaSlicer .ini format. Select multiple files for a bundled import. No data leaves your browser.

How the conversion works

What gets converted

Temperatures — nozzle, bed (from textured plate, falling back to smooth), chamber
Cooling — fan speeds, bridge fan, fan-off layers, full-fan layer, layer-time thresholds
Retraction — length, speed, deretraction speed, z-hop, wipe, minimum travel (only when the Bambu profile sets them)
Motion — max volumetric speed (with optional hardware cap), min print speed, pressure advance (injected as G-code)
Material — type, density, cost, flow ratio, colour, solubility

What gets skipped (Bambu-only, no PrusaSlicer equivalent)

AMS / multi-extruder variant arrays, filament cutting distances
Scarf joint / seam settings
Plate-specific temps beyond textured/smooth (cool plate, engineering plate, supertack)
Exhaust fan, air filtration, pre-cooling
Calibration coefficients (counter/hole coef), adhesiveness category
Bambu-specific G-code conditionals in filament_start_gcode

Limitations

Retraction values from Bambu profiles may need tuning — Bambu printers use different extruder geometry than Prusa direct-drive systems
Pressure advance is injected as M900 (Marlin) or SET_PRESSURE_ADVANCE (Klipper) in the filament start G-code. You may want to recalibrate PA for your specific printer
The required_nozzle_HRC field (hardened nozzle for composites) is noted in filament notes but not enforced

Target Printers

@ Normal flow (caps at 15 mm³/s — MK3S, Mini+) @ High flow (native speed — MK4, Core One)

Firmware (for Pressure Advance G-code)

Marlin (M900 K…) — Prusa stock firmware Klipper (SET_PRESSURE_ADVANCE ADVANCE=…)

Drop Bambu .json files here, or browse ⌘O

In Bambu Studio: right-click a filament preset → Export

Profile Preview

How to import into PrusaSlicer

Single profile

Open PrusaSlicer (2.7 or later)
Go to File → Import → Import Config (or press Ctrl+L)
Select the downloaded .ini file
The settings load into your current session. To keep them, open the Filament Settings tab and click the save icon to store as a named preset

Multiple profiles (bundled file)

Open PrusaSlicer
Go to File → Import → Import Config Bundle
Select the bundled .ini file
PrusaSlicer creates a named preset for each [filament:Name] section automatically
They appear in the Filament dropdown in the right sidebar

Where profiles are stored

macOS: ~/Library/Application Support/PrusaSlicer/filament/
Linux: ~/.config/PrusaSlicer/filament/
Windows: %APPDATA%\PrusaSlicer\filament\