Filament Transfer Connector

This device assists in spooling filament from a spool with a center diameter to another spool with a smaller diameter. The reason for its conception is the proprietary size of the filament spools for the Flashforge Finder but the principle works with any two spools of different size.

I've used the transfer connector together with the TUSH spool holder / rail https://www.thingiverse.com/thing:2047554. I attached to sets of TUSH to a wooden plank at that right distance from each other using cya