Remix of @Yume's excellent Sunlu 250g spool adapters for Bambu AMS.
I had the male side of the spool adapter snap off when my AMS tried to feed filament without turning the spool. I superglued it back on but it snapped off again so I edited Yume's design to add strength. I just added 3mm inside the spool center to give it more strength against torsion. I also upped the infill to 30% for more strength. The two spool sides can still nest together.
The author remixed this model.
Reinforced and filled in the center of the spool.