MK4 - Top Z-Axis Bearings 608zz - R3

I added a 608zz bearing and a octagonal hole to the top mount - I tried to refer to the look of MK4 elements

WARNING !!

It should be remembered that adding a bearing to the top mount can cause more vibrations on the printer frame, so I recommend using the reinforcement I am working on and you can watch the initial work here - Prusa MK3/MK4 black PSU replacement frame brace

bearing and octagonal hole