Saw this on hackaday and thought it was worth linking to.
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Really cool, I’d actually consider backing it, but it is US only. 
The Kickstarter says they are going to release the schematics etc after fullfilment: https://www.kickstarter.com/projects/rackrobotics/powercore-cut-through-solid-metal-with-edm and you can already print all the parts you need: Printables.
Ryan, get ready for the MP3DP to MP-EDM mod. 
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Wonder how they’re filtering the water.
Seems like a MPCNC would be a superior platform to a 3D printer as well. I’d be a little nervous having a container of sloshing liquid on a moving platform above my heated bed and control panel. Seems like the wrong combination of moves could create a wave and and a pop.
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So digging in a bit deeper to their FAQ … its slow 10mm/min which is like 1/60 of what we run our cnc’s at and is limited to 4mm aluminum so that kind of limits it to small detailed parts and sheet metal.
From their Q&A:
We recommend a DC pump compatible with distilled water. 220 L/H is a good minimum
Speaks to the volume, basically an aquarium pump not sure what filter medium you would need.
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That is pretty cool. I had only ever seen EDM with moving wire and carbon bucks(?). I didn’t even consider it with a rod as a tool. I wonder if you will be able to rig this up with a small strung wire setup for much finer details.
Yea, that’s what I was wondering. After about a minute, it won’t matter if it’s distilled anymore. There’s going to be enough dissolved metal in the water to make it conductive.
Wait, what? No Skrillex? Fatboy Slim? Daft Punk? Man… I got out the furry boots and glow sticks for nuthin!
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I keep forgetting that no matter how surreal I think I’m being, this motley gang of miscreants will surface someone to match my level of cultural dadaism… 
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You are thinking of EBM…
https://www.youtube.com/watch?v=HTnBFtR79uI
Saw this guy one year too.
I skipped through that video, did they say what kind of voltage/current that thing is using?
That thing cut that metal like butter and it was a gorgeous cut!!!
Nope, they never stated the voltage.
Heh, I missed that!
The power supplies are wildly expensive. There is a guy looking at making one with mofsets.
There is a really cool 3D printed wire frame one I have been thinking about.
I believe the 30khz is what the difficult part is.
