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EDM through a microscope

A project log for Spark erosion: Detailed view, simple machinery

Have a close look at how Electrical Discharge Machining (EDM) works and what can be achieved with a simple setup

norbert-heinzNorbert Heinz 07/18/2023 at 19:140 Comments

I am working on a video showing the impact of sparks on hardened steel with huge magnification.

The first strike leaves a crater of impressive 0.7mm:

99 "shots" are needed until the 1mm drill finally dives into the blade with no more sparks forming:

No perfect result, yet.

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