This is a replacement for the corrugated cardboard part of Threebees spools so they work with Bambu Lab's AMS. The replacement spool is designed with a slanted groove to prevent it from coming loose. There's two versions, print the one you like.
Use the .step file to print 2 pieces. Should be printable with any layer height, tested with 0.4 and 0.6 nozzle at 0.20mm layer height and 0.30mm layer height.
How to use: DO ONE SIDE AT A TIME!
The author marked this model as their own original creation.