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The DIY Microwave Welder

First, and foremost: do NOT attempt this project if you do not have a thorough and in-depth understanding of the nature of the components that are involved. The current involved can easily kill you.

That said, here is a three-part video series on how to repurpose the large transformers from two microwave ovens into your own stick/arc welding unit, using the steps provided in this instructable. It involves rewinding the transformers with a heavier gauge wire, and connecting them in series to produce enough power to blast the welding rods and material.

Good luck!

Part two:

Part three: