On Friday 07 August 2015 05:40:08 andy pugh wrote: > I just found this on YouTube > https://www.youtube.com/watch?v=qoV8UXtLYmE > > I though that the inability of LinuxCNC to rewind a path would be a > problem, but it appears to be working.
I assume the wire, since it also is being sacrificed, is a long one, and is being wound thru the guides, to both carry electrolyte into the cut, and debris out. And the pauses are where the wire is replaced, or at least re-wound. Given the amperage and voltage showing, it seems to be doing it fairly quietly. I have done some of this, all in blind holes where keeping the electoclyte clean is a major problem, and was noisey as hell. I needed some 8mm holes in an Avanti 10" table saw blade to mount it for sharpening, used a brass tube as the drill with a model clayu dam to hold K2 around the hole. Using 80 volts and a 10 u-f capacitor, I had reports they could hear it 2+ blocks away from someone who came to see what the racket was all about. I needless to say, was wearing 30 db shooting muffs and it still hurt. That saw blade steel was untouchable by normal quality drill bits, but those holes were the cleanest holes I have ever drilled in anything. I also used it, with half that voltage and a 1 u-f capacitor, to remove the central web of some cheap Hansen 6-32 taps that as usual for Hansen/Irwin, broke like dry angel hair spaghetti. 2 of them. Keeping it from shorting in that small a blind hole was a rather frustrating job, I could only burn for about a minute, then spent 10 cleaning out the hole & refilling it with more K2. But it did work, and I did not have to re-make the post extension on my toy mill. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
