Product description
This genuine SPP038 AMS Internal Hub Motor is a reliable OEM replacement for faulty or worn stock motors. Featuring premium metal construction, precise constant-speed control, and quiet operation, it delivers stable feeding and accurate 4-slot switching for consistent multi-material 3D printing. Fully plug-and-play with no complex setup, it effectively fixes common AMS issues like jams, grinding noise, and unresponsive slot switching. Restore your printer’s original performance and ensure smooth, long-term daily and high-intensity printing work.
OEM Full-Function Compatibility, Zero Adaptation Loss
Genuine OEM replacement part (Part # SPP038) with identical specifications in dimension, interface, and torque as the stock motor. No wiring modification, no parameter debugging, and no firmware adaptation required. It is a true plug-and-play drop-in replacement, fully compatible with mainstream models including P1P, P1S, X1C, and X1E. It restores all official AMS functions completely without feature downgrades or compatibility bugs.
Precise Constant-Speed Operation, Zero Feeding Deviation for High-Speed Printing
This internal hub motor features precision closed-loop speed control algorithm, delivering linear and consistent power output for high-speed multi-material printing. It maintains stable rotation without speed drift or stuttering during frequent filament switching and long-duration continuous printing. It perfectly synchronizes filament feeding rhythm, effectively eliminating printing defects such as layer lines, filament breakage, and print gaps caused by unstable motor operation, and greatly improves the success rate of multi-color and multi-material printing projects.
- Genuine Replacement Part – This is an original OEM internal hub motor (Part # SPP038) designed specifically for the Bamb. Lab AMS (Automatic Material System). It serves as the direct replacement for the motor that powers the AMS internal hub unit, restoring full functionality when the original motor fails or becomes unreliable.
- Powers the AMS Internal Hub Mechanism – Provides the driving force for the AMS internal hub unit, enabling smooth filament routing, reliable slot switching between all 4 filament slots, and seamless material loading, unloading, and switching operations. Essential for maintaining consistent multi-material printing performance.
- Diagnose and Replace When Issues Arise – If you experience frequent filament jams in the AMS hub (after confirming all PTFE tubes are properly connected), grinding noises, intermittent operation, or the hub fails to respond during slot switching, this motor is the solution. A direct drop-in replacement with the same specifications as the original
- Premium Build Quality – Constructed with durable metal materials for long-term reliability. Features precision motor control for stable AMS operation and quiet performance during filament switching.
- Easy Installation – Compatible with the original Bambu Lab AMS unit (Note: NOT compatible with AMS Lite and 2 Pro, which has a different internal design). Detailed step-by-step replacement instructions are available on the official Bambu Lab Wiki. Power off and unplug your AMS before installation
