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A strange fluid

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David Clark 118/09/2010 08:17:16
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3357 forum posts
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10 articles
Hi There
I don't have adverts over the text.
Might be your browser.
regards David
 
Nicholas Farr18/09/2010 10:39:07
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3988 forum posts
1799 photos
Hi, sorry David, my point about spellchecker was not aimed at yourself or anyone inparticular. It was supposed to be general comment, as not everone realises some of the limatations of spell checking programs.
Regards Nick.
KWIL18/09/2010 12:35:27
3681 forum posts
70 photos
Nick, such a "limatation" obviously applies to you!
Richard Marks18/09/2010 13:29:53
218 forum posts
8 photos
David
Re my last regarding adverts in the middle of the text, since your reply the width of the page has gone back to normal and the adverts are once again at the side of the page, as this is only on the first page of this post and not on any other forum posts how can it be my browser?
Dick
John Stevenson18/09/2010 13:35:32
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5068 forum posts
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Personally I read the article, understood the text, never noticed the mistake and got on with life.
Is there a problem with that ?
 
John S.
Steve Garnett18/09/2010 13:56:35
837 forum posts
27 photos
Posted by John Stevenson on 18/09/2010 13:35:32:

Is there a problem with that ?
 
 
No of course there isn't - but there again, there isn't really a problem with people admitting that they made an honest mistake, either... or is there?
 

John Stevenson18/09/2010 14:21:05
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5068 forum posts
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Well he don't have to admit it to me because I didn't even read it, my mind took in what was meant as opposed to what was typed.
 
We run the homeworkshop adverts site http://www.homeworkshop.org.uk/ and we have regular posters on there who are either very dyslectic [ who thought that word up for a dyslectic ? I have trouble spelling it !! ] or not well educated, we often edit a post just to give better meaning or spelling.

We could just as well make fun of them or just not post the advert, life's real, for now and too busy to nit pick.
 
John S.
Stub Mandrel18/09/2010 15:11:46
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4318 forum posts
291 photos
1 articles
Dyslectics of the World Untie!
 
And you should all be aware that Dia Lectric is a Welsh sparkie.
 
Neil
John Stevenson18/09/2010 15:54:52
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5068 forum posts
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Works for Dia Hatsu ?
 
OK i'll get me coat..............
 
 
 
 
John S.
Steve Garnett18/09/2010 21:43:46
837 forum posts
27 photos
Posted by John Stevenson on 18/09/2010 14:21:05:

We could just as well make fun of them or just not post the advert, life's real, for now and too busy to nit pick.
 
 I agree entirely - which is why it wasn't me that started this thread. There are far more annoying things that people do in posts than miss-spell, or in this case misplace, the odd word - like making entire posts in capital letters, for instance, which really does make them harder to read.
 
If it doesn't materially alter the meaning of a sentence in a way that's seriously unclear, then what the heck; it can stand. That isn't what's annoying me here... as you've probably gathered.
Nicholas Farr19/09/2010 14:48:47
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3988 forum posts
1799 photos
Hi Kwil, I didn't use spellchecker in my postings, but maybe I should have. It should have read everyone, not everone. Point taken.
Regards Nick
Eric Lougheed19/09/2010 15:46:26
23 forum posts
Who'd be an editor!
Apply the Sherlock Holmes principle and settle for one word in EDM and the other for hot air ballooning.
Eric Lougheed 
Axel19/09/2010 18:53:05
126 forum posts
1 photos
Cheap fun here... I have complete sympathy for the Editor, I make spelling and all kinds of mistakes ALL the time!
Stub Mandrel20/09/2010 19:58:52
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4318 forum posts
291 photos
1 articles
At least wasn't a dianetic fluid. That would be DEEPLY strange.
 
Neil
Jeff Dayman07/10/2010 18:47:33
2356 forum posts
47 photos
I finally received the MEW issue where this EDM article by Mr.Walker was published. Reviewing it, comparing it to the EDM machine I built to the Ben Fleming design, and industrial machines I have used, I offer the following comments for anyone thinking of building one.
 
1. The Fleming machine and all industrial sinker EDM's do not use electrode vibration as part of the process. Some 'tap disintegrators" and EDM "drills" do, however. In my Fleming machine it works totally fine and fairly quickly without vibration. Building a unit without vibration equipment will save a lot of time and effort.
 
2. The Walker machine uses a stepper motor servo to move the electrode. That is fine, and is used on many industrial EDM's, but the Fleming design uses a DC gearhead motor and leadscrew. This is far less complicated to build a control for, and very inexpensive.
 
3. The electrode mechanical support and bearing in the Walker design is very complex and looks hard to make. The Fleming design uses a really poor design for this component also. There is a much easier way to achieve great results simply- if anyone wants to build an EDM please send a private message and I'll elaborate.
 
4. Special paper wound capacitors are called out. These are not necessary for making an EDM that works. The ones I used are commercial ones exactly as specified in Ben Fleming's design and were available at an electronics supply firm at very little expense.
 
5. Several components are not labeled on the circuit diagram and unconventional symbols are used in several places to note where a connection is made that would be inconvenient to draw on the diagram. Not good practice, could lead to big errors and much smoke.
 
JD
Billy Mills07/10/2010 19:42:13
377 forum posts
 I would very much agree with Jeff. The article describes a one-off design that is somewhat old. Paper dielectric capacitors are a very strange choice, they have not been made in any numbers for many decades and are obsolete devices. The basic design is obviously a test bed to explore various concepts- such as vibration. However the basic mode of operation -RC relaxation- is not an optimal choice.
 
The use of vibration is interesting, the advantage is that if the mechanics are very rough  vibrating one electrode results in some sparking even though the gap may be way out of a sensible distance however it does mean that most of the time the gap is wrong , the discharge rate is 10%-1% of what it should be and the surface finish is much rougher that it could be. That suggests that the positioner had excessive backlash, vibration was used  in an attempt to overcome too coarse stepping or backlash.
 
We must await the rest of the series however it is very disturbing to read that the writer requests help with a resistor value- such issues should be sorted before publication. It would have been very interesting to see details of the much more modern design that was at the last MEX.
Regards,
Alan.

David Clark 107/10/2010 21:36:05
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3357 forum posts
112 photos
10 articles
Hi There
The author did not ask for the resistor size.
The editor did as it could not be read from the original.
The original circuit designer was the authors father and is no longer with us.
 
regards David
 
DMB08/10/2010 09:47:52
1585 forum posts
1 photos
Hi David Clark 1,
Re your posting on 18/9/10 under "a strange fluid" thread, regarding adverts over text and you said "might be your browser". I am also suffering this prob. on this thread, using IE, so I thought I would try Firefox and sure enough, prob. red!!
Well I never! Good `ol Microsoft.
John
Axel08/10/2010 10:23:56
126 forum posts
1 photos
Posted by John Coleman 1 on 08/10/2010 09:47:52:
Hi David Clark 1,
Re your posting on 18/9/10 under "a strange fluid" thread, regarding adverts over text and you said "might be your browser". I am also suffering this prob. on this thread, using IE, so I thought I would try Firefox and sure enough, prob. red!!
Well I never! Good `ol Microsoft.
John
 
 

 I´ve had this prob too this morning! But not atm. Try to log in anew, or even reboot!?

David Clark 108/10/2010 10:29:26
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3357 forum posts
112 photos
10 articles
Hi There
If you get a funny thread, let me know.
I may be able to correct it.
If I don't know, I can't do anything about it.
regards david
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