This sensor sits inside the A1 extruder and does two jobs: it detects whether filament is present, and it senses the position of the filament cutter lever. Replace it if the printer reports filament errors or doesn't register filament changes, even with a clean filament path and a fresh spool.
- Detects: filament presence and the filament cutter lever
- Fits: Bambu Lab A1 series extruder
Not sure it fits your printer? Contact us before ordering.


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