eSun 3kg Stackable Spool Storage System

Stackable, rotating storage system for left-over 3kg eSun spools. This leverages the bins designed here but replaces the standard base with one that allows rotation of the spools. Requires one 6708 40x50x6mm bearing. 4 pins, nuts and bins per spool. Additional holes need to be drilled at 3 and 9 o'clock for 2 bins. Superglue the nuts onto the pins.