Prusa Mini plus Z-axis Spool on top update

I have improved my spool holder on top for the mini/mini+.
I replaced the U-shaped bracket with an L-shape so that the spool can be easily replaced.

To make the shaft for the spool easier to rotate I use 1 ball bearing of the Prusa base spoolholder for this (608b)
But I've also added a stl file if you don't want to use ball bearing.

On the cover I have improved the guide for the filament and added an extra screw hole in the side which is needed to fix the support arm to the cover with a screw.
Also, a hole is made for the Z axis if the axis uses its full height.

The axle for the spool must be attached to the support arm with a 3 mm diameter threaded rod
A ring must be placed between the ball bearing and the wishbone to allow the bearing to rotate freely.