I stumbled on Jeremy Fielding's YouTube channel the other day. I watched a couple of his videos and found them quite good. Check him out. He did one on the old perpetual motion machine concept of why just adding an alternator to an EV won't charge the battery more than it sucks up making power. As always TANSTAAFL (there ain't no such thing as a free lunch). Also watched one where he modified a standard miter saw to cut metal. Definitely not recommended as you can buy a metal cutting miter saw for less, unless you have a bunch of spare parts laying around. But it was a very informative video.
https://www.youtube.com/c/JeremyFieldingSr
https://www.youtube.com/c/JeremyFieldingSr
