electromech31,
Sorry, have not seen your post. To get the idea of the basics, I would recommend recommending downloading a free version of Mach3 from
http://www.artofcnc.com along with the users manual. This is the controller software and you can simulate a stepper motor conversion (which the computer does not need servo feed back) and the computer will actually think that it is running a machine. There is a tool path display so you can actually watch the performance of the controller.
The main thing is to understand how to configure the controller which uses the IEEE488 printer port to interface with the stepper motors and the almost 200 page mach2 (or mach 3) pdf manual will explain what's required for machine configuration and will explain servo's and stepper motor configuration (it's also interesting reading)!!
The next thing to download (for free) is the gecko "Stepper Motor Basics" pdf, this will explain the different configurations of stepper motors, and how to use gecko drives for stepper motors.
Once you have these and have looked them over, then there are a couple of simple power supply design note pdf from campbell's site that I can find for you.
Sometimes the benchtop forum is a better place to look for info on how to get started at looking into cnc issues, where this forum is usually (but not always) specific questions or problem resulting from equipment or component failures and how to get the machine back up and running.
Hope this gives you some encouragement!!
Welcome aboard,
Ron