Anycubic I3 Mega Belt Tensioner

What you need:
-one 12mm diameter pulley with 3mm diameter bore bearing for GT2 timing belt width 6mm,
-one M3 nut,
-one screw M3 x 16mm,
-two screws M3 x 8mm,
-three M3 washers.

Put the nut in the hole.
Put two washers on top of the M3 x 16mm screw and one below and screw the whole in the nut. Do not screw too much or the bearing dont turn.
Unscrew the two screws from the stepper.
Put the assembly in place and screw it with the two M3 x 8mm screws.
Adjust the tension you want on th