Hi, just completed the conversation of the 2300. I took out all the old control boards and fitted in a new CSMIO motion control board as I wished to get away from using printer ports. The wiring to the stepper motors was easy, but I find that the spindle motor was making to much noise so I replaced that also with a new 500w spindle and control unit from eBay. To get a bit more movement on the z axis I also replaced this for a small z axis unit also purchased off eBay. The machine runs very well but I have lost the Rev counter display. It now all works with mach3 and I can use the software I am use to. I am just waiting for the cable tidy to turn up and all will be well.