Hi!

We have strange problem with Z2 axis (lower turret Z axis).
Sometimes machine get huge servo vibration in Z2. We have already checked and changed (just to be sure) pulse generator.
Also pulse generator connection has been secured.

I noticed that this problem only occurs at inside turning operation in subspindle. ??
I know there is no sense in that, but when cutting with inside tool, X axis is at top position but how could this
affect to Z ?? This problem is only at small diameters, so some connection must be with X axis position to Z vibration.
But honestly i'm in deadend..so any help would be nice :drowning: