Well guys I have been doing a lot of reading and looking at options before I decided to posted anything. I got the X2 the other day and have already assembled my controller box. I went with the Probotix 3-Axis kit with the 400oz Nema 23 motors. I have my X and Y axis planed out, but am kind of lost on the Z axis. I want to go the cheapest route for right now until I can get the ball screws for all axis. Is there a simple way to convert the Z without breaking the bank?