3 ports? Cool. Can you run more than one machine at once with that setup? What did you use to add the other ports?
Welcome to the forums, btw. I'm not really much of a contributer unfortunately, but I've learned a whole hell of a lot! I have an X2 with cncfusion z axis (soon to be X+Y too) and a mini-lathe I'll want to convert. I'm also building a 3D printer a-la RepRap.org (technically I'm building a RepStrap...)