Bambu Lab Filament Cutter Lever - H2S

The Bambu Lab Filament Cutter Lever – H2S is a genuine OEM replacement for the filament-cutting mechanism inside the H2S toolhead. The lever holds the cutter blade and actuates it to slice filament cleanly before unloading or performing a material change.

Reliable filament cutting is important for automated loading and unloading because the filament must be properly severed before it can be withdrawn from the toolhead. A damaged, bent, worn, or sticking cutter lever can lead to incomplete cuts, failed unloading, filament jams, or interrupted material changes.

The FAC143 replacement includes the Filament Cutter Lever, torsion spring, BT2.6 screw, washer, and retaining clip required to restore the original cutter mechanism. It is designed specifically for the Bambu Lab H2S.

Overview

The Filament Cutter Lever holds the cutter blade and actuates it to slice the filament.

Installation