250g Spool Adapter, Smaller Adapter

The original model was created to help small 250g iSANMATE spools to fit into this spool adapter. I have made the inner prongs a bit closer together to fit my 250g Amolen plastic spools, as they would just spin on the base spool adapter and the prongs on the original adapter were too far apart to fit into the Amolen spools. This version of the adapter fits the 56mm Amolen spool radius, and if printed in PETG, is flexible enough to fit slightly smaller spool radii as well, such as on my 55mm Lovoon cardboard spools.