Spool Holder for Nunu Filament 57mm

I have createt that Think for the Filamet Spool with a diameter of 56 - 57 mm from NuNu.
Ball Bearings are from inline skates with 22,5-23,0mm like my other spool holder.
You can use a 8mm threaded rod for the ball bearing. if you buy inline skates spare wheels there is an reduction from 8 to 6mm in the package.

If you have any question, let me know.

Greetings from germany

And this is for the german User, to make it easier:

Hallo

ich habe diesen Spulen Halter für das Filament vo