This part is the piece that the AMS Lite 4 to 1 hub connector needs at the bottom to connect into the Bambu A1 or A1 Mini. The original part from Bambu breaks fairly easily and this is a simple quick replacement. Prints in about 20 min with a 0.2mm nozzle.

You can easily print this replacement part with a 0.2mm nozzle. It will not print properly with a 0.4mm nozzle.

It snaps on right in place of the old one and saves you from having to purchase an entirely new Hub Connector (and waiting 3-10 days for shipping).

I have also included the Fusion 360 file as this was my first attempt at it and it seemed to fit perfectly. I did size the inner pins down a hair from the OEM just to make it an easier fit.

Update 2/27/2025 - I found the bump outs to be a little loose, so I tightened the fillets up a little bit and it is a much more snug fit. I added an updated profile as some people may still want the looser model if they remove it a lot.

Update 3/2/2025 - Added the Bump that was missing from the design to lock in the back half more securely. It will now stay in place much longer.

Note: I removed the earlier version print profiles on 3/6/2025, so that everyone gets the best design that fits perfectly.