I have a vanguard 4000 (don't know if that is similiar to the 3000) that had a EP controller, until it died. I made a contoller for it using a hobbycnc 4 axis board, and a old linux box running EMC. It is a hundred times more useful now then it was with the EP controller. I will soon purchase the collet chuck for it and will be able to mill small parts. I made a mount for a dremel with a end mill in the chuck. The most difficult part of the new controller set up was figuring out the wiring to the motors.
Democracy is like a pack of wolves
and a sheep desiding what's for dinner.