The Bambu Lab Hardened Steel Extruder Gear Assembly – X1 and P1 Series is a durable upgrade for Bambu Lab X1 and P1 Series 3D printers, specifically engineered for reliable extrusion of abrasive engineering filaments such as carbon fiber and glass fiber composites.

Product Specifications

• Compatibility: X1 Series (including X1C), P1 Series (P1S, P1P) only - not compatible with A1 or A1 mini.

• Material: Hardened steel (gears), plastic and metal construction.

• Reduction Ratio: 9:53.

• Supported Filaments: Ideal for very abrasive materials—PET-CF, PAHT-CF, PA6-CF, PLA-CF, PETG-CF—plus mainstream filaments (PLA, PETG, ABS, ASA, PC, TPU).

• Filament Diameter: 1.75 mm.

• Package Size: 60 × 60 × 30 mm; Weight: 50 g.

• Assembly: Includes both driven and active (idler) gears as a set—direct replacement for the original extruder gears.