Poor Man's PolyBox™

UPDATE 22APR18: Due to friction problems, I've abandoned the "bottom skid" spool holder and replaced it with a rod and support brackets which can be attached with M3 screws or superglue to the sides of the container. I've also relocated the push-fit connectors to the lid (top) for smoother feeding and easier loading.

I needed 2 dry filament storage boxes that would also feed my Mosaic Palette+ which splices 4 different filament colors/types into 1 continuous 1.75mm piece. This allows any 3