Filament reel spool wall storage mount

Single screw compact filament storage mount.
I couldn't find a flush mounting spool holder which also accommodated spools with smaller centre holes, so I made one.

Size:
total length: 7.5cm
compatible spool width: 7cm
minimum spool centre hole diameter: 3.5cm.

Usage

I fixed them to a cupboard side (laminated chipboard) with a 3.5mm 16mm screw 4 have held for 3 months with no issues

Printing Guide

print on one of its side to ensure strength.
No supports needed
Use a strong profile or at least 3 walls
(you know what your printer is like use setting that you think will hold 1kg)