Is there a way you make the same you explained above but using a nurbs square instead of circle? When I tried, the result was two parallel planes connected with another plane in the middle and not the the "tube effect".
That wont work because a nurbs square consists of four nurbs curves that are not connected at all. You could use a nurbs circle and then flatten out the corners by moving the control points to get a square like shape. Or use the EP/CV curve tool to draw out a nurbs square shape (Use three or so cv points close together to get a sharp corner)
Alan
Technical Director - Framestore
Currently working on: Your Highness
IMDB