Replacement Filament Buffer Kit A xMCU Series for Bambu Lab AMS Spring Tension Buffer with Sensor Board for Smooth Feeding

Smooth Feeding Buffering

This buffer kit ensures consistent material flow by absorbing tension fluctuations between the AMS feeder and the toolhead extruder. It prevents filament from being overstretched or tangled during retraction and fast printing movements.

Spring Tension Design

The built in spring mechanism maintains optimized pressure on the filament path, providing stable buffering action. The slider design creates a length of slack that automatically adjusts based on AMS assist motor output.

Sensor Board Included

The kit includes a PCB sensor board that detects filament movement for smart responsive control. The buffer has a signal for detecting material breakage, enabling timely pause and alert functions.

DIY Compatible Modular Structure

The modular design supports flexible customization and easy integration with existing setups. Two package options are available: with print parts or without print parts for self printing.

Compatible with Official Buffer System

This buffer is designed to be compatible with the official Bambu Lab buffer system and works with a single AMS unit to manage filament flow effectively.