Wally wrote:

My current sketch has a start diameter of
180mm, 40mm at the small end, and is 400mm long.

I've put a screen-grab of the sketch on my web site...

http://www.wally.myby.co.uk/audio/sp...ExpoCab-01.jpg


--
Wally
www.artbywally.com
www.wally.myby.co.uk/music