Thanks Tweakie,
The final machining on the gridplates after mounting them to the table. This is the limit of the X, Y travel,
The next item is a rotary table. This is an Ebay find with a 5" 3 jaw Rohm chuck. It is servo driven, and since I am running the Campbell box with Geckos I figure the easiest/ cheapest way is to convert it to stepper.
I haven't been able to sort out the NEMA numbers for the mount, it mics at 1.100" ctc, which I interpret to be NEMA 11, but in the dimensional drawings for various steppers the bolt centers are different.
This particular question may be in the wrong thread, so I'll look around and move it if necessary.