This was long over due.
Check it out.
http://www.rotaryeng.net/mm-instruct.html

Paul Lamar

Beautiful presentation Paul.  Thanks for doing it.   I am going to
print it out and put it in is own binder.  I did find one typo where
the beam dimensions are given  as 1" x 2." instead of  2" x 3.44."
Jerry

Thanks for catching that Jerry. I'll fix it.

Paul Lamar

Paul,  I would like to post this article or a link to it on my web
site.  I am not clear which way is better or if it makes any difference
functionally.  Jerry