Hi, i had ordered the book online at camden bookstore the 21th of July. i received it yesterday and am satisfied with the service, the parcel was strong and...
... There are two ways to "mainly use the machine for removing taps", you either break a lot of taps or you break few taps but don't use the machine much for...
I have the plans for the EDM that was in the Home Shop Machinist in 1995 & 6. I've been collecting parts over the years, but had trouble getting a 60 volt 5...
Hi all, I have both a wire and sinker edm I'd like to sell. The wire is a late 80's or early 90's Charmille and is complete, the sinker is a bench top...
hi... another approach: Locate a 120-240 vac step up (or step down) transformer. Feed 120 vac into the 240v leads, and you'll get 60 vac out the 120v leads. ...
I am building an EDM using a PC power supply 5v output to drive a push pull converter. The converter will be switched off during discharge to stop charging....
Another method is to use a Variac which is a variable transformer, you would then have adjustability. Julian ... From: EDMHomeBuilders@yahoogroups.com ...
Hi Scott, Thanks for the reply, I will try to get pictures today. My shop is really crowded with equipment so the pictures will be cluttered somewhat. ...
Hi Russ, I actually did that a few years back, and it wound up being an auto-transformer. The secondary on this type of transformer isn't isolated. I did...
Big bucks for a high amperage one and I want it all in one unit and be somewhat compact. My home made MOT 120 volt to 60 volt transformer was basically free....
Hi Jim, A nichrome heating element will actually increase in resistance as the temperature goes up. That's probably why your setup drew less current than the...
I also included a some other machines I have for sale: Oliver 6 X 60 belt sander $600 Christen drill grinder $ 750 Pratt & Whitney tool and Cutter grinder...
Julian, You might consider changing the message title in future as this has nothing to do with transformers Graham This message has been checked for viruses...
I'd like to apologize to the group for posting all those pictures about the equipment I have for sale, I really thought I was making an offline reply. Julian...
Having had the book 9 months I thought I had better start this project. Since it's such a quick process I decided to make a PCB using the Toner Transfer method...
Nick, Absolutely fantastic! Greatly appreciate the pictures also! I started building mine about 9 months ago, but wasn't happy with the way my "perf board"...
Nick thanks very much for posting the Photos on how to make the PC Board in the photo section. I think it will be very helpful for many builders. BTW you did a...
When I did PCBs for projects, I used to use a small aquarium air pump and a diffuser stone in the Ferric Chloride Solution to agitate the solution. The little...
I just picked up Ben's book today. It looks very interesting, and fairly similar to Robert's design. I'll study both, and try to come up with a good mix of...
Wow Ben, That's a great book you have there. Basically being very cheap too, I wasn't originally going to purchase your book, as I have the Home Shop...
Bob, To agitate I used a hot air gun gently blowing over the surface of the boards, or a hair drier would be okay. Not too much heat though ! For the limited...
... Ben, I'll wait to see if it works before accepting any praise ! and will post more photos of the rest of the panel soon. I have a few questions for you : ...
The main reason I chose Fiberglass for the dielectric tank was to reduce the tendency of electrical shock and to insulate the EDM power supply circuit from...
Nick I failed to answer your question about the 48 Volts. It has been my experience that and EDM will work with a 48VAC output but it is on the edge. I would...
Thanks Ben, I've now found a Toroidal transformer with 2 x 35V outputs which I can wire in series to give your suggested 70 Volt output. It's physically...
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