Mortimer Schnerd, RN wrote:

foggytown wrote:
You're trying to tell me that 1/4" in the height of a table makes a
difference? We're talking woodworking, not molecular physics. The
tolerances for something like a table leg (which has an obvious
beginning but, in theory, no end) doesn't have to be slavish to such
tolerances.


If it's part of a set, ¼" makes a difference. Otherwise, no.

Well, it's kind of nice to have your kitchen cart line up with the
countertops or your computer tale line up with your desk. There are
standard heights for many things.

As for "woodworking, not molecular physics", the fact that the material is
wood does not mean that one is incapable of or precluded from or should not
try make things precisely. Try a dovetail that's 1/4 inch off and see how
you like it. Henry A. Rowland used a lignum-vitae nut in his ruling
machine for making diffraction gratings--that machine has a precision in
excess of 1/43,000 of an inch. I guess he didn't know that it was only
allowable with wood to round things off to the nearest inch.




--
--John
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(was jclarke at eye bee em dot net)