When building the MMU3, the spool holders use some foam pads that allow the roller width to be adjusted but maintain position. The foam pads came off as soon as I tried to adjust the width. I saw this design by @EngineerDude that I used for awhile, but I wanted to make my own similar design that would fit the 70mm Prusament rolls I have.
Update: Added 120 mm version that fits a 2 kg Prusament spool.
Design goals:
Recommended Print Settings
The author marked this model as their own original creation.