Homemade spot welder built using supercapacitor. 39:15 video:
https://www.youtube.com/watch?v=f8VCu1MmvZQ
Previously:
https://www.homemadetools.net/forum/...537#post132301
https://www.homemadetools.net/forum/...2791#post97149
https://www.homemadetools.net/forum/...806#post137018
https://www.homemadetools.net/forum/...221#post134789
https://www.homemadetools.net/forum/...144#post120921
https://www.homemadetools.net/forum/...393#post116770
https://www.homemadetools.net/forum/...6268#post83362
https://www.homemadetools.net/forum/...968#post100346