About this 3D model
The wire spool holder now fits spools up to 22mm width. There now is a hole to mount it. I used T-nuts to mount it to my Ikea Skadis wall. I also widened the hole where you normally put the M3 rod through. You can now also use M3x30 screws to clamp them together when using them solo. Get the rest of the files from the original model. I also made a winder to get the wires on the spool.