About this 3D model

This spool holder will securely hold one or two (with the anti-coupling spacer) filament rolls. It will easily rotate to keep full acces to stock rolls. A handle coupled with a 6x50mm hex bolt will hold the system up. You can use a classic nut with washer, but an hammer-in tee nut would be more practical and efficient. You may plan to put 2 tee nuts every bracket on one level. By drilling wood on its center, it won't be weakened.