Noticed that my top two rollers on the z axis rails don’t make consistent contact. It seems like there is around 1/16" of slop in them and I think its the cause of some of my cut quality issues.
Is there some kind of adjustment for these? I haven’t seen anything obvious to adjust just in looking at it.
If no adjustment is this just normal?
Heres a video to help explain the extra movement
Here is the adjustment for the pro. That is way to sloppy. this is from the manual
Excessive Z axis bearing play
Eccentric bearing axles are out of adjustment and there is no preload between the V groove bearings and the rails.
Use a 5mm wrench to turn the eccentric bearing axles clockwise. Be sure to preload the bearings the minimum possible amount to ensure that there is zero or minimal play while also ensuring that the Z slide can still glide freely up and down.
Go back to manual and read, it has every adjustment … That will be sloppy cuts for sure.
thanks, manual even has a nice picture 
not sure why I didnt just go there first