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Is it possible to use a PC PSU for welding?

I've heard of people using car batteries but what about a PC power supply? I've got one here that can supply 40 amps at 5 volts or 20 amps at 12 volts, which might make it perfect for light spot welding jobs. Biggest problem I can think of is that it will shut off if it's momentarily short circuited. Can anyone think how to get round this?

Asked By: - 1/13/2010
Best Answer - Chosen by Asker
Firstly, neither the voltage nor the amperage is high enough... More
Answered By: WΘMBAT is Sparky - 1/16/2010
Additional Answers (1)
No its far too sophisticated anyway 40A is way too low and also you need a high initial voltage to make a spark. Get an old microwave from a landfill or waste site, build it (see ref) dead easy and it works great.
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Answered By: John - 1/14/2010
 
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