I built Ben's EDM, I get spark with brass tapping electrodes & Electroarc tap removing electrodes, but no burn. My voltage is good or what the book says & the...
Corporation (3M) for the small projector (MPro110), a device capable of clear image transfer from PCs and video game players as well as multimedia as the iPod...
Blake If properly build and operated the little EDM will work well with either Graphite, Brass or Copper. The copper does not need to be pure copper to work...
hi, you don't mention what you are using for your DIELECTRIC FLUID. with out a dielectric all you will get is sparks --- NO cutting! Â Â packrat ... From:...
Are you saying the hollow Electro Arc tubes won't work? I'll have to go scrounge up some graphite. I was using plenty of coolant from my mill on my practice...
I have never tryed the electro arc tube so can't say for sure but I am guessing it will work if you use the right dielectric. You need to use (a Hydrocarbon...
This is my first post here and I must say my little EDM based on Ben's book works like a champ. So far I've used copper and graphite for electrodes. My first...
http://handbooks.blogspot.com guys i wanna share the site for handbooks, standards, etc or by request. please visit and tell to your co friends Regards, Jc ...
I don't see any references to anyone here using this EDM machine for aluminum. Has anyone tried it? I'd be interested in what kind of removal rate you're...
Cliff, I did a trial burning a 1/8" square hole through a piece of 1/4" 2024-T3 plate using brass tube. The result was fine and burn time was about a minute,...
I want to take this opportunity to wish you a wonderful Christmas. It's my hope you have good health and are among friends and family. Please remember and say...
Hi guys, I am at testing stage of the generator e would like to know how does the potentiometer works properly? The potentiometer woks for driving the servo in...
I had commented on this previously. You can place a 470 ohm resistor in series with the poteniometer wiper before the switch to fix this. If you have any...
Hi guys, I'm building a machine with a servo-motor of --- 6 AMP ---, but the ci sn754410 does not support this current, I wonder if anyone has any idea to...
I had the idea of useing two or 4 solid state relays but I dont know if it would work! mike ... From: adhemar_mendes <adhemar_mendes@...> Subject:...
... Search on DigiKey L298N is $6 and is pretty much the same from the servo controllers standpoint as the SN75xxxx thing. It has two channels that are each...
Hi There is a high current H bridge about half way down on this site that could probably be adapted to work on our Edms but i can't say for sure. The SN754410...
hi, why not use the output from the SN754410 to drive the gate of a appropriate size N MOSFET (one for up - one for down) the out put from the sn754410 is 12...
Adhemar: You can find an "H-Bridge" motor driver circuit elsewhere on the internet. I submitted one to this group, and used it instead of the SN754410 chip...
If N Channel FETs are used on the high side, the gate must be raised above the bus voltage. Try reading some of the application notes from International...
Hi, I am a newcomer to the group and I know this thread is a bit old but thought it a useful reply to mark my existence :-). I too live in the UK and have only...
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