I made a v2 of this model that's better in every way. Check it out here: https://makerworld.com/en/models/98555#profileId-105061
I needed some small spools to organize leftovers, but couldn't find any that fit my requirements, so I drew up these.
Printable on the a1 mini.
Compatible with the ams lite.
Holds about 400 grams of filament.
50mm inner diameter
140mm outer diameter
Prints in 2 parts that have to be slid together. Not designed to take back apart, the fit is very very tight.
I use the filament spool switcher & winder (https://www.printables.com/model/407688-bambu-lab-p1-x1-x1c-x1cc-filament-spool-switcher-w/comments) to fill them.