Simple but solid wall mounted spool holders.
Designed to support 2500g spool.
Lots of screw holes for a better maintain if used into drywall, for example.
Design of the hook : https://www.thingiverse.com/thing:493828
The base is designed by myself.
Print in 2 parts for better rigidity of the arm. Can be printed in one piece without support (Both files provided).
I also give you the 3D Builder file.
Purefil of Switzerland PET-G