The builder of this fine Spot Welder made it out of necessity because of a much larger project he was working on: a homemade gas turbine. By the looks of the figures given on his website, the welder as shown – can be built for around $175. The result is a high quality spot welder that produces excellent results.
Go to the 5 bears site and find out more about building the spot welder as well as several other nice projects.
