The purpose of the diodes is to block any reverse current from from the gap when the cap discharges i.e. ringing. It is to reduce the wear on the electrode it...
Ben: Are you saying there should be a wire from one end of the power resistor pair to the RED banana jack, then from there to the PWR + ? I'm going to guess...
Yes there should be a wire from the end of the Power resistor pair to the diode which connects to the Red banana. Yes a wire goes to the PCB from the Red...
Thanks again Jim, with the resistor in series the chip barely gets warm so should be ok with the dinky little heat sink I found in the catalogue. Just need to...
Hi all, I'm curious if anyone has modified their servo control algorithm circuit or come up with simpler or more sophisticated designs, and if we can start...
You are free to post schematic and written descriptions of any design you come up with and want to discuss. Ben Moderator ... From: "gordon.kirkwood"...
In the photo section under Brian's stuff there is a pic of my ram. I could not find a drawer slide so made my own. The motor shaft is glued into the lead screw...
I have not really had a need to burn tungsten carbide though in the book I mention doing a test burn on a cutting too bit that is carbide with a cobalt binder...
Ben, Can we burn Tungsten Carbide using Ben's EDM By making the power double of generator i.e., using 100 volts transformer and using bridge resistors,making...
Hi Brian, I was surprised no one commented on your home made slide (nice job), it turned out real nice, and looks like it should preform very good. Your...
Sir, As you said we can double the power of generator, sir i want to know following points: (1)if we use 100 V transformer,now which capacity "Bridge...
Hi Ian, Sorry to hi-jack your thread but I am having trouble sourcing all the components in the UK. Please can you post the list of suppliers you used in the...
G'day The July meeting will be held this Sunday 20th July at McDonalds Cafe Bar Corner Berwick Street & Canning Highway Victoria Park Western Australia at...
Hi Steve, I am short of the two 20uf polypropylene Caps, a submrgible pump with viton seals, a fiber-glass tank, dielectric and a few other bits and bobs. Ric...
Ric, Just reading this after being away for a week on holiday. I have built the electronics and the ram but have not put the tank together tgether yet so will...
Hi Ian, please can you post your Farnell part numbers in the 'Files' section. As for tanks I have done a little looking for these in the last week, the prices...
Getting a replacement pump for the one spec in the book has been a real thorn in my side. I am happy to announce that Dayton pump has a virtual replacement for...
Hi, Finally did this for you, sorry for the delay. Note that the parts list is not comprehensive, I left the small wattage resistors out as these are easy to...
Hi! I've finally bitten the bullet and decided to have a go at trying to do some EDM work. I've been working on the Reprap project (building an open source 3D...
Hi there, look at www.camtronics-cnc.com. They have sink and wire edm plans available, and the guy selling them has a very good reputation in the cnc world. I...
The plans sold by camtronics are worth their price. I'll say, however, that the wire EDM machine described, according to the author (not Dan Mauch, the...
Wow! Hours/inch for an 1/8 inch billet? I'm not sure that I have that kind of patience. That raises a very serious question, though. What sort of material ...
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