How To: Make a DIY electrical discharge machining machine with an old doorbell

Make a DIY electrical discharge machining machine with an old doorbell

Electical discharge machining is a techinque in which electricity is used to machine (cut, grind, etc.) metal. It usually invovles sophisticated tools and equipment, but not here! Watch this video for a guide to making a small electrical discharge machining machine with an old electric doorbell.

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