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MOT spot welder? Answered

I want to build an MOT spot welder and ive already cut the wiring out of the transformer but i noticed while doing so i scraped off what seems to be the coloring off the primary.  Will this affect it in any way?
Also, i can really tell the power of this transformer? can anyone help?


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iceng

6 years ago

A welder is high current and low voltage.

Your MOT is part of a high voltage resonant microwave.

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microwaveOven2.jpg
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TimB27iceng

Answer 3 years ago

Iceng, by removing the MOT secondary and replacing it with a low gauge copper cable wrap you can "transform" the high voltage power into high current and low voltage output.

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Ian Fowler

5 years ago

you can get Enamel Spray and touch it up

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science kid

6 years ago

that stuff that you scraped off is the insulation but just on the edge will not hurt it.