You might be looking for a retrofit kit from one of the vendors here on this board. One that includes all the electronics you will need to get your table up and running. You'll most likely have to fabricate custom motor mounts and a rack and pinion setup, but it's probably going to be alot better then trying to upgrade your current motor/driver system to CNC control.
As tinman stated a dual drive type system might be something you'd like to consider so that you can keep the use of your shape eye.
Mike @ Torchmate.com | www.Torchmate.com
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