I printed the Universal Spool Adapter from Humebeam.
Since the cardboard spools from Eryone are not of great quality, I remixed the fitting 76mm center ring and added a small pin.
The pin snugly fits into the original spool cutouts and prevents the cardboard core from rotating.
I ripped my cardboard spools and replaced them with the universal adapter for use in original AMS.
Please assemble the center ring as shown in the fourth photo.
The author remixed this model.
I remixed the 76mm center ring and added a pip to prevent rotation in the cardboard core.