Creality K1 — PETG-CF

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