http://tech.groups.yahoo.com/group/EDMHomeBuilders/ EDM HomeBuilders Fri, 06 Nov 2009 23:32:31 GMT Frank-P. Kurda http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2535 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2535 Hi, has anyone here build a wire edm before ? I'm looking for a suitable power source schematic. Or can i use the power stage of any sinker EDM ? Thank you Tue, 03 Nov 2009 16:29:38 GMT cary heestand http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2534 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2534 Hi Roland, seems like your more interested in small hole drilling.  In the hole drills at work they did use softened tap water run through a reverse osmosis Mon, 02 Nov 2009 19:00:03 GMT gst338lm http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2533 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2533 ... Here are the part #'s I have conveniently at hand. HTH, GsT 647-UVR2C102MRD Nichicon Radial Aluminum Electrolytic Capacitors 160volts 1000uF Mon, 02 Nov 2009 17:00:22 GMT Roland Jollivet http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2532 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2532 Ok, so it's basically because of the swarf volume. After seeing this slimy swarf stuff on a Sodick once, I figured it might be the dissolved gasses in the Mon, 02 Nov 2009 16:57:56 GMT toolingjim http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2531 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2531 Thanks, Roland. I had wondered about this. In an industrial setting, the oil/water choice will be made for different reasons than we hobbyists will use. The Mon, 02 Nov 2009 15:47:50 GMT cary heestand http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2530 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2530 Hi Roland, having worked for a company that used deionized water for sinker EDM when they bought 5 new Charmilles I can testify that water is not for sinkers. Mon, 02 Nov 2009 15:34:44 GMT wheezer http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2529 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2529 Would you be willing to post the Mouser.com parts list that you used for your purchase? I am at the "get the parts" phase right now and this would be a great Mon, 02 Nov 2009 10:04:10 GMT nickjones111 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2528 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2528 In response to question 1 Using the standard EDM as per the book I burnt out an M14 tap full length of the flutes (well over 2" long) using a 3/8" diameter Sun, 01 Nov 2009 20:34:51 GMT Roland Jollivet http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2527 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2527 Hi I've been studying this for a while too. While I have not built a machine, here's a stab at it. And open to correction of course........ Kerosene is Sun, 01 Nov 2009 19:55:56 GMT toolingjim http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2526 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2526 Even as a lurker and complete amateur to this home edm subject (haven't even bought the Fleming book), I have managed to come up with a question. Over the Sun, 01 Nov 2009 13:51:54 GMT racerjerry2 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2525 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2525 Be Careful. Only the NHL series resistors (not HL) are non-inductive . Sun, 01 Nov 2009 03:11:12 GMT gst338lm http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2524 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2524 Okay, so I just received Ben's book on Thursday (super-fast shipment, BTW) and am collecting bits and pieces. I also bought the PCB. The PCB leaves a little Sun, 01 Nov 2009 02:54:56 GMT gst338lm http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2523 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2523 The aluminum-housed resistor should work fine. But if you want the spec'd resistor, Mouser has it. Mouser pn 71-HL50-06Z-20. That's mouser.com. I spent the Sun, 01 Nov 2009 00:22:03 GMT Sanford Roman http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2522 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2522 Ken, That is a really nice tribute. Certainly Ben's design is tested and workable and buildable by a huge number of folks out there. Tweaking a good design Sat, 31 Oct 2009 23:19:03 GMT roofis27 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2521 http://tech.groups.yahoo.com/group/EDMHomeBuilders/message/2521 Hi all, Another one of Ben's machine lives as of 29OCT2009, albeit with a few minor changes. I've gone with stepper motor drive and an ATMEL AVR mega8