Anet A6 Spool Holder Adaptor

Anet A6 comes with a simple spool holder with a 8mm axis and screws. Thats nice.
But what happens is that your spool will rock back and forth while printing (pulling and pushing the filament to the extruder).

This loose adaptor creates a smooth glide for your spool.
It fits between all 52mm Spools I tested (3 Brands) and the generic Anet A6 spool holder.
No additional parts needed (if you own the A6 spool).