Yes, Michael and Pilou ..

Rhino will handle the rectangular section and Sketchup has some great tools, too.

I really like working within MoI whenever possible ... it is so friendly!

thanks,
eric

Autodesk Inventor Fusion does this as well. Check out the technology Preview (free for now) or if you have or are going to get AutoCAD 2012 or one of it's variants, it comes included.



This is an interesting preview, but it will only go to the logical limit when you click "OK":



It's definitely fun to play with if a little slow.

http://labs.autodesk.com/utilities/fusion/

Hi Eric

Probably you know already, If your solid is something like a wall you can always use the edit frame to stretch it. You have to click the corner first to send the point it scales from to the edge instead of the middle then pull it up.

Thanks, Jamie ...

No, I have rarely used the 'edit' box ... just for rotation, really.

In a minute or two of playing with it, I now realize that it is actually very powerful and that I must get familiar with it asap.

thanks again
eric

Very useful too for flat curves!