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Thanks for the interest and question. Yes, it could be used to eat away the center of a broken tap or screw. That is actually the most common use for EDM. That is why I originally built the EDM power supply/circuit. I had a broken screw in a wooden table leg. I just used a brass tube smaller than the screw with the positive clip attached and pumped water through the tube, I used the negative alligator clip attached to the part of the screw sticking out of the wood I made a makeshift rod holder that was horizontal instead of vertical (drilled a hole in a 2x4 the size of the brass tube) and moved it in and out by hand. The water just dripped into a bucket below. Worked pretty good.
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what you are describing is called wire edm. A more advanced version of what I made. you can think of it as an EDM band saw. A very thin wire is slowly moved down from a top spool to a bottom spool while the work piece gets moved on a CNC arm. It is used to cut very hard metal that is several inches thick into precise patterns. It can also cut very fine detail shapes since the tool never touches the work piece so applies no pressure.
thanks for noticing that. all fixed now
hearing from someone who ran a real edm means a lot to me. thank you so much. I've added more info to the instructable, (another cut project) please check it out. Again thanks.
EDM - Electrical Discharge ...View Instructable »
Van Gogh 3-D Sculpture Cake
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thanks, this was my second cake sculpture I have made. I learned a lot and look forward to making more cakes like this one.
thank you, I really enjoyed working on it, I enjoyed finishing it even more.
sounds like a good idea, the back of the head isn't very exciting, that's why all my photos are of the front.
thanks, I am as surprised as most other people are with it. To be honest, it wasn't suppose to turn out this good, I just kept working on it piece by piece and it just turned out like this. Right now I keep it covered with a bag to keep the dust off it but also cause it kind of creeps me out to have a head looking back at me.
Van Gogh 3-D Sculpture Cake View Instructable »
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