Robert Bonomi wrote:
In article ,
Robatoy wrote:
I now make parts for different people who e-mail/fax me drawings so I
can quote on them.
Some parts are such that I can't tell what they are or what they're
the purpose of them are.
Sometimes I see dimensions as obviously imperial ones, sometime it is
hard to tell, especially when I have NO clue what these parts are.
Personally, I don't give a rat's ass what system is used as I work in
both metric and imperial.
But what seems to be the reason for the US hold-out to stay with an
archaic system?

Tevye says: TRADITION!!



Another example from angle measuring...

Most math people like to use radians to measure angles.
The military, at least, the army, often likes to use mills (6400 in a
circle).
Most people prefer degrees, or, the less formal, "about like that".

At least in the first 2 systems there are, or were, advantages. Using
mills was designed, I think, to eliminate the need for decimal points.

Bill