Bambu Lab AMS First Stage Feeder

The AMS First Stage Feeder is specially designed to support the AMS for printing multiple colors and materials. Each AMS has 4 first stage feeders, and each first stage feeder has its own motor and gears to actively push the filament forward or wind it back to the spool.

A filament detection sensor is built into the first stage feeder. The first stage feeder will automatically pull the filament in when it is inserted. When a filament needs to be winded back, the first stage feeder will drive the AMS driving sleeve to rotate the spool for filament winding.