I might be a bit hesitant regarding the control electronics. They are open mounted on a wooden panel, I would suggest that an enclosed box with a metal backplane, for function, cooling and safety. Also, a few of the components are mounted contrary to mfgr's installation instructions, this could impair cooling. Also there are line voltage wires unsecured... for feet. A trip and safety hazard.

Having built a few machines, and knowing that each time I built one of the first dozen or so, I came upon an improvement that I couldn't wait to get into the next build. What number build is this for him?