Looks like a nice machine. Congrats. I got the Keling 3 axis (MX3660) driver to simplify setting up, and the same motors. I haven't determined if the Spindle 0-10V optional section shown on the driver/BOB requires another power supply, or not. It seems info is sketchy at best on some of this stuff. I also got the ethernet smoothstepper to handle the connection to the computer, rather than a parallel cable. I picked up a dead Shuttle K45 for the case to possibly use as an electronics enclosure. It's small, and I just have to mock things up to see if it is useable.