Spool ring For M8 Rod

I found that having bearings caused the filament to unreel itself and get tangled, so this mounts directly to an M8 Rod. In the design that I have mounted it to, the M8 rod rotates itself in some lasercut holes.

You will need to print two of these, and use nuts to lock them onto either side of the reel. If you use two nuts at each side, or lock nuts, then the Filament Reel should have enough clearance to rotate on the plastic mount, without rotating the rod.

This is my design with a series of steps to fit the different Filaments that i use.

It works for the following:
Excelvan
FormFutura
Filaprint

and probably more.