Been working on my Ooznest knockoff. Gradus M1 Pro $60 400w spindle from Banggood with driver. Only real mod was to use 6020 instead of 8020 for the supports. I can sink my spoilboard down this way. Things to do: Calibrate it and actually see how it works. Double up the belts. (I bought em, might as well use em.) Install the limit switches.