BambuLabs X1/X1C Improved Rear Spool Holder

With the stock metal rear spool holder I would sometimes get a squealing noise as my plastic spool would turn on it. I decided to design an improved holder so that I could avoid those noises. This improved spool holder reduces friction as well as still allows the AMS plug to be used. 

I printed this using the Bambu Labs stock 0.2 setting on an X1C with Overture Black PLA.

The holder can use the stock screws and requires 4 x 608-2RS Ball Bearings (standard 8mm x 22mm x 7mm skate bearings).

If you have any suggestions for improvement please leave a comment.

I have included the step files in case anyone wants to do their own remix. Here is also a link to the file in OnShape Cad editor.