Revolve on rail gives something also similar

This is really cool, i didn't even realise that you could do a two-rail sweep with the two rails touching in a tanget manner, so that you end up with a closed shell-type form that's completely smooth where the rails meet. I had some fun experimenting with shifting the pole-point around. (i used one closed loop at the bottom as profile and the two upright curves as rails.)

Hi Michael, yup that is a nice technique that can come in handy.

Here is another thread that describes how to use that method to model blobby type objects that are smooth everywhere:
http://moi3d.com/forum/index.php?webtag=MOI&msg=415.2

- Michael