Spool adapter 73 mm to 32 mm

made this adapter for my a20m printer after I had a filament jam on the spool.

after printing with this adapter. the filaments are perfectly winded in the spool with zero risk of jamming.
see picture with green spool (adapter) vs red spool (no adapter).

Print 2 of them for each extruder to support the spool left and right. see photos.

I also made 10mm wide rings to keep the spool centered in front of the extruder and lock it. (put them left or right of the spool to center it)