Ben and all, Well I have acquired most of the components required to build the EDM power supply (generator). I designed a PC board for the power supply to...
... And also the servo chip, comparator and other associated electronics ? I'm curious because I too have layed out such a board (great minds thinking alike ?...
Alan, Yes, the layout includes 2 bridge rectifiers, two filter capacitors, 12V regulator circuitry, the three machining capacitors, the output diodes, the...
Hi Guys, I have been interested in EDM for a while and can see that it would be an advantage to my craft (I make knives, swords and other types of cutlery......
I have done some research and found Australian suppliers for most of the critical components used in Ben's EDM. These are listed in a file called 'Finding the...
Hello everone, I think there are a lot of things to be considered in EDM research. Here I list some, maybe right or maybe wrong. 1.Mechanical parts. Including...
Hello Ben, Have you any books or technology information about the Puls Power parts and the control of the motion according the returned signals from the...
I suggest you go to linuxcnc.org and download the CVS_HEAD version of emc2, it has been recently modified to control the feedrate via a dc input voltage. this...
Ben's book describes using aircraft trim servo as a quick solution for driving the electrode. Wonder if anyone has pursued this solution? Are there any other...
... search for linear actuator rather than servo, the feedback in the edm system comes from the spark gap so you don't need a servo as such. You will find...
Below is a link to a web site that shows industrial versions of the aircraft servo trim motor. The Bristol S.G. company is actually a division of the Ray Allen...
Instead of all this hassle with unknown linear actuators why not just buy from the suggested Surplus Center http://www.surpluscenter.com/ a motor very similar...
... wrote: I have used the aircraft trim servo and it worked great. It is almost plug and play. the only modification i made was i used a 9-pin computer socket...
The list grows we are 600+ strong that is over a 100 new members in the last month and a half. Not much activity on the list from message posting lately mabye...
My EDM stuff is paused, I have worked out a servo system for smooth wire supply and tensioning and then had to spend a lot of time sorting out my workshop,...
My electronics box is complete and quite a number of the mechanical parts are good to go. I had hoped to spend a goodly amount of time working on the project...
I'm still gathering parts. Takes a while on government retirement pension. Couldn't get the high power resistors locally, so got to it another way...I...
I just joined and have been reading past posts. I've yet to get the book but I'm pretty interested in building...will be strongly interested in the pulse...
My construction is paused. Just started a new job that's taking a lot of extra time. I have all the electronics and some of the mechanicals. Hope to build...
... The tricky bit is preventing rotation of the actual quill I've seen some nice ones with a small ball race attached to the inner tube running in a slot in...
Light bulbs can be used but are not necessarily the best choice. As they heat up the resistance increases which means that the charge time on the caps goes up,...
... Light bulbs can be used but are not necessarily the best choice. As they heat up the resistance increases which means that the charge time on the caps goes...
Ben and all, When I got the first prototype printed circuit board, I had spec'd the wrong size holes for the capacitors. I also didn't really like the layout....
I finished the generator - we'll have to see if the power resistors hold out. I used very large aluminum resistors in parallel. I also substituted several...
From: "Derek Brodeur" <d-brodeur1@...> ... Some of the commercial EDM's have a pump that is also overkill. They have a T that feeds one end to a valve and...
From: "Ben" <bnf@...> ... I'm waiting for the new book. Although it sounds like a fun project, to get much use from an edm, I would need to be able to get...
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