More durable filament feeding for the Bambu Lab A1 series

The 3dacc all-metal feed gear assembly replaces the original gear assembly inside the extruder of Bambu Lab A1 and A1 mini printers. The robust metal design is intended to provide a long service life, reliable power transmission, and even filament guidance into the hotend. The pair of feed gears grips the filament from both sides, supporting stable extrusion and reducing the risk of slipping during printing. The assembly is suitable as a replacement part for a worn mechanism as well as an all-metal extruder upgrade.

Key benefits

• All-metal construction for increased mechanical durability
• Precise and even filament feeding
• Pair of gears for reliable power transmission
• Lower risk of slipping or irregular extrusion
• Direct compatibility with Bambu Lab A1 and A1 mini printers
• Suitable as a replacement for the original assembly or as a preventive upgrade
• Intended for standard filament with a diameter of 1,75 mm

When should the assembly be replaced?

Replacement can help if the extruder feeds material irregularly, the filament slips, the gears are damaged, or unusual skipping is heard while loading the filament. Before installation, we also recommend checking the hotend for blockages and checking the condition of the filament.

Compatibility

Parameter	Value
Compatible printers	Bambu Lab A1, Bambu Lab A1 mini
Location	Inside the extruder unit
Filament diameter	1,75 mm
Design	All-metal feed gear assembly

Package contents

• 1× all-metal extruder feed gear assembly

This is the internal extruder gear assembly. The motor, complete extruder unit, and hotend are not included. When printing abrasive materials, also use a suitable hardened steel nozzle.

Key features:

• Compatible with Bambu Lab A1 and A1 mini
• All-metal design with high mechanical durability
• Smooth and even filament feeding
• Pair of gears for reliable engagement
• Suitable as a replacement part or extruder upgrade
• Intended for filament with a diameter of 1,75 mm