Quote Originally Posted by John S View Post
He needs the Cslab's IP-A for those Dc motors but can that do step and direction for the 4th axis ?
Nope it can't and you bloodly well now it can't you old Git. . . . . Anyway 4th axis wasn't mentioned when I suggetsed that route.

To be totally honest (and think John S would agree) if it's working OK I wouldn't touch I'd just sell it and retro fit an Old VMC.!!