I wanted to reuse the existing Bambu Lab spool holder and not have to print up a complete new one.

This adapter allows you to mount the existing spool holder upside down to utilise my Roller Spool Holder with Bearings

You will need the following hardware:

• 2 x 608 bearings
• 2 x M3 8mm OR 10mm bolts (Please use the correct print profile depending which bolts you are using)
• 2 x M3 nuts

Alternatively if you don't want to use the roller design, just print the screw adapter plate to allow the Bambu Lab spool holder to be mounted the original way up, but why would you want that :)