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Date

09-13-2006

Posted by Peter Neill on September 13, 2006, 3:34 am

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I need a new edge finder.
I broke my old Brown & Sharpe this weekend, it had a small chip in the
0.200" end and I spun it up too fast, too close to a corner and the
end cracked into lots of little pieces.

J & L have Starrett edge finders for about twenty quid, or the value
brand ones made by Mayar in India for about a fiver. They don't sell
the Brown & Sharpe ones in the UK catalogue.

My question is are the Starrett ones worth 4 times the cost of the
Indian ones? After all it's 'only' an edge finder, but then again the
location from this forms the basis of precise co-ordinates. So which
one to buy - a set of 4 for twenty quid or an apparent single good
brand for the same price?

Peter

Posted by Tony Jeffree on September 13, 2006, 4:42 am

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On Wed, 13 Sep 2006 08:34:49 +0100, Peter Neill

>My question is are the Starrett ones worth 4 times the cost of the
>Indian ones? After all it's 'only' an edge finder, but then again the
>location from this forms the basis of precise co-ordinates. So which
>one to buy - a set of 4 for twenty quid or an apparent single good
>brand for the same price?

Or get a cheap webcam for a tenner, fit it to a suitable adapter
(piece of plain rod same diam as an edge finder would do) and use it
to make a "centering microscope" as per the article by myself & Dick
Stephen in MEW around Jan/Feb this year.

Regards,
Tony

Posted by Peter Neill on September 13, 2006, 5:14 am

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wrote:

>Or get a cheap webcam for a tenner, fit it to a suitable adapter
>(piece of plain rod same diam as an edge finder would do) and use it
>to make a "centering microscope" as per the article by myself & Dick
>Stephen in MEW around Jan/Feb this year.
>
>Regards,
>Tony

I read that article, and very good it was too.
But a PC and webcam won't fit in my toolbox <g>.

Peter

Posted by Tony Jeffree on September 13, 2006, 5:39 am

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On Wed, 13 Sep 2006 10:14:06 +0100, Peter Neill

>wrote:
>

>>Or get a cheap webcam for a tenner, fit it to a suitable adapter
>>(piece of plain rod same diam as an edge finder would do) and use it
>>to make a "centering microscope" as per the article by myself & Dick
>>Stephen in MEW around Jan/Feb this year.
>>
>>Regards,
>>Tony

>
>I read that article, and very good it was too.

Thanks!

>But a PC and webcam won't fit in my toolbox <g>.

Clearly in need of a bigger toolbox <G>

Regards,
Tony

Posted by anotherid on September 13, 2006, 11:50 am

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Tony Jeffree Wrote:
> On Wed, 13 Sep 2006 10:14:06 +0100, Peter Neill

> >But a PC and webcam won't fit in my toolbox <g>.[/color]

>
> Clearly in need of a bigger toolbox <G>
>
>

Or a smaller PC :) I do wonder how well PCs and oil/metal shavings mix?
I was
wondering about using a small security camera and a B&W monitor,
but have got no
further than wondering about it :)

Brendan

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