Just as practical nuclear fusion has been “only 20 years away” for the last 80 years or so, the promise of electrical discharge machining (EDM) in the home shop seems to always be just around the corner. It’s hard to understand why this is so — EDM is electrically and mechanically more complicated than traditional subtractive manufacturing techniques, so a plug-and-play EDM setup seems always just out of reach.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/05/17/betta-aims-to-bring-wire-edm-to-the-desktop/