Re: [CAD_CAM_EDM_DRO] Project on a miniscule budget

for what you want to do a sinker edm would be the best using a carbon
electrode.

Harko

On 2/15/07, milespaul2004 <milespaul2004@...> wrote:
>
> Here's one to challenge all of you!
>
> I need to put a 0.1875" square hole along a 1.25 inch length of a
> 0.250" square BMS bar. I need this hole to be a lapped or precision
> fit on 0.1875" square bronze slipper. Fabrication using silver
> soldered joints is a possibility but so far I have not been able to
> produce these components with the fine finish I need for the job...
> An EDM machine came to mind and I would like to have a go at making a
> simple one if that's possible.
> I am retired here in the UK and have little spare cash but as an ex
> audio engineer and film sound recordist I do have some knowledge of
> electronics.
> I know there was a circuit for a very simple machine in Model
> Engineer magazine many years ago (1970's I think) but tracking the
> issue and a copy down has been fruitless so far even through the now
> owners of the publication.
> I believe the designers name was Roy Amsbury who worked for Rolls
> Royce in Derby but I have been told he passed away some years ago.
> Just wondered if anyone has a simple EDM machine design that they
> might be prepared to let me have. Could be an interesting project to
> pass the time away with.
> Regards to all
> Paul Miles.
>
>
>


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