Originally Posted by Maksutov

This is more engineering than science, but the principles are the same.

There's little about geometric dimensioning and tolerancing (ANSI/ASME Y14.5) that I'm not familiar with.

However, I recoil sharply when anyone refers to me as an "expert" on this material. Accepting such a moniker is setting one up for a fall. Instead I will say I know a few things about the subject and those things I know I'm sure of.

Anyone who wants to find fault in my textbooks, training manuals, etc., is welcome to do so, as long as they are trying to achieve something positive. Those who are just trying to tear down a discipline because they don't like it, or don't comprehend it, are easy to detect up front.

Funny that when such negative persons are dismissed they often hurl accusations of "arrogance" at those of us who know what we're doing.