Erik on Fri, 24 Aug 2012 11:02:18 -0700 typed in
rec.crafts.metalworking the following:

You got anything on GD&T? (Geometric Dimensioning and Tolerance)
It explains all the weird little symbols on "modern" blueprints, which
if followed, give you good parts.

Take a look at this:

http://en.wikipedia.org/wiki/Geometr...nd_Tolerancing

Be sure to look through all the references & external links at the end.

Thank you.

Brain fart "Why didn't I think of that?"
--
pyotr
Go not to the Net for answers, for it will tell you Yes and no. And
you are a bloody fool, only an ignorant cretin would even ask the
question, forty two, 47, the second door, and how many blonde lawyers
does it take to change a lightbulb.