AMAZING! Thanks for sharing this David. What an incredible man with a remarkable mind. My father was an automobile mechanic but was also a jack of all trades. He did his own plumbing, electrical and carpentry work. Heck, there were eight of us kids so he didn't have the money to pay folks to do things…instead he learned, asked customers who were tradesman, etc. so he could do it himself. I see a lot of that in this man. Little schooling but an incredible mind for anything mechanical.