Denford Triac VMC w/ ATC conversion

[stallone]

Not really, you're adjusting the preload on the pair of angular contact bearings in the green block that fixes the ball screw to the table.

...the blue ones in the illustration below. I was trying to figure that out.

[i2i]

the drawing doesn't really represent the action, but that's where it is.

[andy_con]

You cannot adjust the ball screw bearings, they are what they are.

When you have an angular contact bearing in your hand the middle wobbles back and forth.

So what your almost doing when you have a pair is pulling the middles together to get rid of that play.

[Clive S]

...the blue ones in the illustration below. I was trying to figure that out.

This drawing is not correct as it is not showing the inner part of the AC bearing