Bambu H2D barrel extension

Bambu H2D feed tube expansion port

The Bambu H2D tube expansion port is an adapter for connecting PTFE tubes.
Compared to the original PTFE tube connector, the 4-in-1 adapter can connect four feed modules to the printer simultaneously.
It can help users connect printers to AMS and other cables that are incompatible with AMS, such as TPU 95A, Bambu PET-CF and other brands of carbon fiber/glass fiber cables.

Learn more about adapter replacement on the Bambu Lab Wiki .

The expansion port of the feed tube is designed with a clear intended use, as shown in the figure below.


1. When using AMS:
Connect the PTFE tube of the tool head to the OUT end of the feed tube expansion port.
- Connect the PTFE tube at the buffer output to one of its inputs. - Insert up to three wires directly into each hole at the IN end of the feed tube expansion port.

2. When AMS is not used:
Connect the PTFE tube of the tool head to the OUT end of the feed tube expansion port .
- Insert up to four wires directly into each hole of the tube expansion port .

It should be noted that reverse connection may cause cable blockage.
Therefore, ensuring the correct installation orientation is crucial.