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Prusa MK4 — PETG-CF

⚙ Prusa MK4 Tested 2025
4/5
Notes
PETG-CF combines PETG ease of printing with carbon fiber stiffness. Excellent for functional parts needing rigidity without the difficulty of ABS or PA. Requires hardened nozzle.
Tips
Hardened nozzle required. Reduce speed 20-30% vs standard PETG. Dry filament before use — CF absorbs moisture and causes brittle layers.
Details

PETG-CF combines PETG ease of printing with carbon fiber stiffness. Excellent for functional parts needing rigidity without the difficulty of ABS or PA. Requires hardened nozzle.

Temperatures

SettingValue
Nozzle240 °C
Bed80 °C
First Layer Bed85 °C

Speed

SettingValue
Print Speed80 mm/s
First Layer Speed30 mm/s

Cooling

SettingValue
Fan Speed30 %

Retraction

SettingValue
Distance1 mm

Quality

SettingValue
Layer Height0.2 mm
Flow Rate96 %

Notes

SettingValue
Nozzle TypeHardened steel required — CF abrasive critical
Drying4-6h @ 65°C before printing recommended

Tips

Hardened nozzle required. Reduce speed 20-30% vs standard PETG. Dry filament before use — CF absorbs moisture and causes brittle layers.