Spool Holder universal / Filament Spulen Halter

Hello

I have creat this Spool Holder with holes for 2 ball bearing each side from inline skates wheels, you need summary 4 ball bearings.
The Bearing must have 23mm diameter and max 10mm thick.
In the middle of my bearings i can use a 8mm threaded rod ( M8).
2 Pieces you have to print and 4 bearings you will need.

It´s make for Spools with a hole diameter from 40mm to 80mm.

If you have any question, let me know that :-)

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

Hallo