Hi Adam,

I'm converting a Clarke combi machine - mines an old and somewhat tatty one but my experiences may still be applicable.

Build log of the original conversion is at http://www.mycncuk.com/forums/showth...9-The-sows-ear

I'm now converting the X and Y axes to ball screws. The Y axis leadscrew was just not up to CNC operation and the X axis could be better. I've not finished yet but in initial testing I've got the Y axis moving at 3000mm / minute - the best before was 900 and that was loosing steps.

Mark