This thing allows to save some space on your desk by hanging filament spools under a bookshelf. The hanger bars can be also fastened vertically to a wall - I didn't try this configuration but it should works :) They are really tough and should be able to hold a big and heavy spools too.
Designed for the 3 mm screws with a flat (countersunk) head shape.
Dimensions (width x height x length):
- Center: 24 x 13 x 160 mm
- Left / right: 17 x 13 x 160 mm
I printed this thing with PLA, 0.2 mm layer height.
Because of overhangs above the slots it's better to use supports.
A complete set consists of one left and one right element, plus any number of center parts. Because holes positions in all parts are the same, if you get a new spool, you will be able to replace already fastened left (or right) one with newly printed center element, and move the terminal element one spool further :)