yellowbeard Mach2 will do slaving, which is what I think you are talking about. Using one of those motors on each end of you Y axis? Right? If that is the case Mach2/3 will work just fine and is only $150 US with free upgrades. Support is first class. I would also make the suggestion you contact Mariss at Gecko about drives for those motors and I would do that before I actually bought the motors if you don't have them yet! The guy is a stepper motor genius!