An all-in-1 centering disk for the excellent rewinder by Miklos Kiszely (https://www.printables.com/model/407688-bambu-lab-p1-x1-x1c-x1cc-filament-spool-switcher-w).
I use the default 50mm centering disk on the gear side and this all-in-1 centering disk on the other end.