Originally Posted by
newattitude
When I plug it in the lights come on. Now, whether or not it work works is another thing!
newattitude it wont matter if it works or not, the type of guys buying this from you on
ebay will have more test equipment for electronics than you could shake a stick at with a list of parts and chip suppliers.
To get an idea of what this controller does google cnc 3d printer, lathe, milling machine, plasma table, water jet cutting with cnc in front. Then catch a youtube video.
Your controller either handles one or more axis of the robotic movements required during the 3d printing process or any other machine adapted for cnc ( computer numeric control ).
Plenty of guys building their own machines or retrofitting an older machine to CNC.
The 3D Reprap printer makes it possible to print out any pattern needed in the
foundry to cast a new part shortening this process from months to days. The wonderful world of CNC makes it possible.
Robots assembling, welding and painting cars all CNC controlled.
newattitude 
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