A while ago, I was doing some work on the extruder head, trying to clear up a situation where the filament was getting stuck and to repair the filament sensor. But during the process, I somehow lost one of the internal parts of the four pipes. Inside the feed port marked "AMS", there are several parts that help guide the filament to the extruder head. On my A1 Mini, I don't use AMS, just a Bowden tube.

I didn't want to spend $6 and wait for days to order a new Bambu AMS hub, so I made this one. It allows a standard M3x10 PTFE connector to directly supply filament to the extrusion head. If you have black connectors, I recommend using them because they allow the PTFE tube to pass through completely and can be directly connected to the discharge port on the opposite side. If you only have blue or white connectors, the inside of this part is conical, so any filament inserted will be guided to the discharge side. When printing with a