[AT] Farmer's sig line

[Rick Weaver]

I'd agree on not measuring wood to less than 1/16 if you're doing house
framing.  I just don't want to see any furniture that's made with that
gross of a measurement.  It may fit together but if it does you're just
lucky.

Those 1/16 errors will add up in certain situations to where you'll be
sorry, and even if not, the 1/16 gap you'll have in places will be
noticeable.

Rick Weaver

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Henry Miller
Sent: Friday, January 26, 2007 8:19 PM
To: at at lists.antique-tractor.com
Subject: Re: [AT] Farmer's sig line

On Friday 26 January 2007 17:19, Francis Robinson wrote:
> 	That sig line was generated as part of my ongoing drive to annoy
the
> various woodworkers on several woodworking lists that think that they
must
> spend an hour on each little setup lining everything up with a
> micrometer... I speak often of how I consider a hatchet to be a
precision
> woodworking tool.   ;-)    ;-)    I have no problem with them working
that
> way but several feel the need to tell all of the new guys that they
are
> stupid if they don't do the same things and some even like to make
> statements that imply that guys who don't shouldn't be allowed to do
> woodworking. The thing is I know the truth..

You missed one great truth: wood is suitable for precise work.    In
normal 
room environments wood will expand and contract greatly.   

I too know people who carefully measure wood with a micrometer.
Someday I'm 
going to go back to one of their projects with a micrometer and show
them 
just how much it moved, without any noticeable change.

Wood should never be measured to less than 1/16th inch.   Iron is
measured to 
1/1000th of an inch.    If you go for more than this you need to account
for 
how your part will change as conditions change.

Even then you need to be careful.  There is a measureable different in
the 
length of a 747 between hot an cold days. (in the millimeter range)   
Something Boeing takes into consideration.   (mostly by making things
fit 
loose enough that they can move)
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