Thanks. The video that I saw on youtube for straightening ball screws is this one Eitel RP-16 straightening press - ballscrew demo - YouTube and I was wondering if that sort of service has been used by anyone on this forum. Whether there is such a service, even.

Perhaps I'm only imagining that the wobble in my x-axis ball screws are affecting my work, but something is (affecting my work, that is) and I feel like doing something about it. When my machine was installed we had a terrible time getting it through the door and the ball screws were grabbed ... I know, but it was that or dropping the whole thing. Besides, at the time none of us knew what a ball screw was anyway :-(

That was two years ago and things aren't bad, just not really great.