UP Box 1Kg Spool Holder 50mm Hole

This is a 1Kg Spool Holder for The new UP! Box. The 1kg Filament does not fit on the holder of an UP! Box without working its way off, so I created this device to place on the original holder after placing the spool of filament. The part will keep the spool in place whilst printing. I printed the item without support on the UP! Box.