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

[Carl Gogol]

Farmer,

Reminds me of my very first non-farm summer job in 1968.  I had completed some chemical usage calculations for my boss and before we got very far his boss came by to see what I had done.  I was rather proud of the calculations as chemicals were a bit out of my field but were something I was ready for.  First thing out of the big boss’s mouth was “where is the date and your name on each page”?  Actually, he may have told me my calculations were useless.  He lectured me for a brief period and the gist of the lashing (how it seemed to me at the time) was that a piece of paper without a name and date on it was just a piece of paper because no one could find the author to discuss it should questions arise nor could it be determined if this was the latest or preliminary information.

I got in the habit of following this advice and probably irritated a number of coworkers and subordinates by insisting on names and dates until I retired.  

I did find the advice useful in keeping track of documentation generated in large and small projects.  

Carl

Manlius, NY

 

From: AT <at-bounces at lists.antique-tractor.com> On Behalf Of Indiana Robinson
Sent: Monday, October 28, 2019 10:10 AM
To: Antique Tractor Email Discussion Group <at at lists.antique-tractor.com>
Subject: Re: [AT] OT EDM Drilling on old tractor steel and iron.

 

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 <mailto: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”. 

 

The downside is that the setup may have only worked in the down direction. 

 

 

https://www.makino.com/machine-technology/machines/edm-hole-drilling

 

 

 

[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 <mailto:robinson46176 at gmail.com> 









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