250g Spool adapter (120mm)

See also these other sizes: 118 mm Spool Adapter 140 mm Spool Adapter 150 mm Spool Adapter Measure the outer diameter before printing, so you will have the right one. You can also scale the model a bit to fit. Message me if you need help. Use Sunlu (and others) 250g spools in the ACE or AMU as a full-size spool! Sunlu dimensions OD = 120mm, Width = 42 mm (other dimensions unimportant) There are other adapters, but here is why this one is the best: grips the outside of the small spool Robust pin grips a hole in the 250g spool, it won't break wide stance in the ACE/AMU for best reliability A grippy tread on the outside of the spool means this works when printed with PLA (which is perhaps more slippery than other materials) steers the filament back onto the spool when retracting Provides a hole for the end of the filament to rest in