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Many years ago [ScorchWorks] built an electrical-discharge machining tool (EDM ... a microwave oven transformer rewired with 18 gauge wire to drop the voltage to sixty volts instead of the ...
Electrochemical machining, or ECM, is not to be confused with electrical discharge machining, or EDM. While similar, ECM is a much tamer process. Where EDM relies on a powerful electric arc ...
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