Shelf Mounted Spool Holder

This is a custom spool holder meant to be screwed into a shelf above the 3d printer you're using. It can accomodate any reasonable amount of spools, based on the length of the aluminum tube you're using(the one I use can hold 8 spools).

You can lift the whole bar, because of the M12 bolt that creates a joint.

Mechanical parts I used:
1x M12x50 Bolt
1x M12 Hexagonal Nut
2x M8 Bolt
2x M8 Hexagonal Nut
1x M4 Screw
1x M4 Nyloc Nut
6x M4 Torx Wood screws

1x 25x600mm Aluminum Tube