Hi! Posted this one a few months ago, but didn't get any clear answers: I'm trying to draw a pipe which tapers along a user defined path, but which starts with eliptical cross section, and finishes with circular cross section, morphing smoothly between the two. I noticed a previous posting requesting info on a related problem of how to do tapered extrusion of elipses into conoids, but it didn't produce any answers. :-( Is there any way to do the above using existing AutoCAD2002 tools ? Any LISP routines or affordable 3rd party tools out there that will do the job? Many thanks in anticipation Dave