[AT] OT EDM Drilling on old tractor steel and iron.

Indiana Robinson robinson46176 at gmail.com
Mon Oct 28 07:09:45 PDT 2019


*EDM* – Electro Discharge Machining
There is an old writing rule that says that you shouldn't use an acronym or
an initialism in an article without first giving a definition of the
letters involved. After doing that you are then allowed to use the letters
abbreviation  constantly even to the point of silliness if you want and all
is fine...  :-)  Most of us (myself included) break this rule constantly.
One example is "PTO" = Power Take Off. That is pretty safe on an old
tractor group. If you were writing for a group of pie repair shop owners
you should probably pre-define it first.
I'm not really questioning James use of EDM here, we as a group define the
word casual, but I took that link... I hunted all over their site and could
not find the initialism defined there. I Googled it and had to look at
several returns to find it there. Obviously it is only a household word
among a fairly limited group of engineers and machinist. Why would they not
define it up front on their site? I suppose some of it is that most sites
are created by computer geeks who are not always journalist.
Back in my data processing days we discovered that the systems analyst guys
were horrible at writing instruction manuals for clients to use when
preparing data input. They knew their end of it but just couldn't connect
with the customers. I became the interface between them and the customers.
While I'm here I'll insert one of my favorite gripes. "Nothing should go on
the internet that is not dated up front. I hate it when I'm researching and
can't find a date on an article then find that the article is 25 years old
and the information badly out of date... Especially so on medical
information that keeps evolving.
And now back to old tractors.  :-)


.

On Sun, Oct 27, 2019 at 9:03 PM James Peck <jamesgpeck at hotmail.com> wrote:

> Probably 25 years or so ago, an article discussed a homebrew low tech EDM
> a man had built to EDM a broken tap out of the aluminum block or head of a
> small engine. The article may have appeared in “Home Shop Machinist”.
>
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> The downside is that the setup may have only worked in the down direction.
>
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> https://www.makino.com/machine-technology/machines/edm-hole-drilling
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> *[*James] How did your experiment using an EDM sold only to burn holes in
> hard materials work?
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-- 
-- 

Francis Robinson
aka "farmer"
Central Indiana USA
robinson46176 at gmail.com
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