I've ran across a "home built" setup. I've not saw it in person but have been messaging back and forth some. It seems like he used top quality components as near as I can tell. The base is built from 3" square tubing with 1/4" wall thickness. Gantry is 8" square 1/4" wall thickness aluminum tubing. Auto Tool Changing Spindle. Nema 34 hybrid driver and encoded motors. Centroid Acorn controller. Centroid CNC12 + digitizer software license. Touchscreen Windows 10 computer. 44" x 90" work area. Can see it operate and run if desired. Estimates it to weigh about 1200 lbs. Thoughts? Questions I need to ask?