Anet A6 filament spool holder

The spool holder which is supplied with the Anet A6 is certainly the worst they could imagine.

Here is an alternative, on the top of the machine, inspired from the one I am using for my Wanhao: https://www.thingiverse.com/thing:1635585.

Required parts:
* 2 x 8mm rods or tubes (~ 20cm)
* 4 x bearings (22 x 7mm, inner diameter: 8mm)