The internal auxiliary motor Bambu Lab 3520 is a component of the Bambu Lab AMS 2 Pro and AMS HT system for filament transfer and material switching. It is suitable for system upgrades or repairs.

Specifications and package contents:

• Manufacturer: Bambu Lab
• Type: multi-material upgrade parts, stepper motors, multi-material system accessories
• Compatibility: Bambu Lab AMS 2 Pro and AMS HT
• Includes:
  • 1 × internal auxiliary motor 3520 AMS
  • 1 × extruder wheel
  • 2 × M2.5x8 screws
  • 1 × 3693ZZ bearing
  • 2 × extruder damping silicones