If I were Richard Ay, I would say something like this:

The first thing to do here is see if the bend is long enough without the miter. Make sure the two connecting straight pipes are long enough to contain the bend.

Next, review the article from Mechanical Engineering News, June 2000, page 16, titled "Modeling Widely Spaced and Closely Spaced Miter Bends in CAESAR II". If you don't have a hard copy of this newsletter, you can find a copy on this web site at: http://www.coade.com/newsletters/menlist.htm .


Sorry Rich, I could not make the "copy thread address" thingy work.

John