I've sold my X-Carve and am planning to build my first CNC. I've got the mechanicals handled I think, but I'll admit the electronics are a little out of my comfort zone. I was hoping someone could look at the list I've put together and let me know of any possible conflicts, issues or better suggestions. First off, the machine: simple 1000 x 1000 cartesian style 3-axis CNC router, controlled from a Windows PC. It will require five stepper motors, as the Y will have dual motors and I'm using the entire X axis as the Z carriage, so two motors there also. All-aluminum construction with C-beam and 20x80 rail. I'll be starting out cutting hardwoods and Corian (solid surface). Clean precise cuts are the primary objective but obviously the faster I can make them the better. I plan to move on to cutting aluminum copper and brass once I have the machine control down, and I don't want to have to upgrade to do it. Electronics: Arduino Uno (link) KL-8060 stepper drivers (link) NEMA23 2.8A stepper motors, 425 oz/in (link) 48V/12.5A switching power supply (link) 1.5KW water-cooled 110V spindle w/KL-VFD-15 inverter (link) I do not have 220V available but I do have a single 30-amp 110 circuit dedicated to the machine. The motors may be overkill, I'm not sure. The machine I just sold was equipped with 140 oz/in NEMA23s. the 425s may be overkill. What advantage is there to such massive torque, assuming it's properly fed? Any observations or advice would be greatly appreciated. I'm placing the order for the mechanicals tonight, and obviously it will be a while before I need all of the electronics. Just trying to get a handle on all of it. Thanks!