Quote Originally Posted by Jonathan View Post
I meant that comment to be just pointing out it is probably possible to get round the vibration problem and the feedrate gain is a bonus.
Nah much better to replace the bent screw IMO because after you have gone to all that trouble and expense for what amounts to a very costly and mostly un-usable bonus the screw is still bent.:exclaim:

RE 60M/min Y axis out of interest how much pulley ratio did you have to use and what sort of accelleration did you achieve.? . . . If you don't mind me asking.!