Actually that problem was a piece of cake for Rhino.
Try intersecting compound curves in ACAD.

Paul, Agreed. Autocad is a great 3d solids package, but fails miserably for surface modelling of
that type. SurfCAM does that well but again the user interface is not the most intuitive. Things
SurfCAM does well is some of the weird stuff like drive a conical fillet (starts at one radius and
changes over length) around the  intersection of two compound curved objects. If I were still
designing as a career I'd jump right in with Rhino. A bit pricey as a hobby tool.
...Chrissi
Cozy Mk-IV 13B-turbo
www.CozyGirrrl.com
Chrissi@BlueMountainAvionics.com

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