Thin Spool Holder for Thing Version 2

Thin Spool Holder for Dry Filament Box (Thing 4056923)
A few months ago i published a "Dry Filament Box" [link](https://www.thingiverse.com/thing:4056923) wich is very useful to safe filament from huminity while printing. Normaly the box is fine to use with the given configuration, means 4 bearing balls and 2 axes are carrying the spool and doing the right friction.
Sometimes, you want much less friction, for example, if you are using a direct extruder and a housing. So you need this small "addon" to the Box.

The holder will be setted to the former bearing ball cages flat side to outside. In the cones you have to insert the bearing balls from the box (only one each cone).
Additionaly you need a threaded rod M8 about 90..10mm long as the rotating axis.

#Version 2
Now i finished the next generation of this thing. There are several Improvements:

-Cones are shortened better matching to 700g...1000g Spools with less "screw work".
-Windings are improved too, less post-processi