Revolving Curves Around Curves

You can create a surface or polygon mesh by revolving a curve around an axis defined by another curve.

If the profile curve is closed, the resulting surface will be closed in V.
If it is open, you have the option to close the result. The surface is always closed in U if it sweeps through a full 360 degrees.

To revolve a curve along a curve

Select the curve to be revolved, then add a curve to be revolved around to the selection. You can select curve objects as well as U or V isolines, U or V knot curves, boundaries, surface curves, and trim curves.
Choose one of the following commands from the Model toolbar:
- Create Surf. Mesh Revolution Around Curve
- Create Poly. Mesh Revolution Around Curve
If you didn't select the curves in step 1, you can pick them now. This creates an object and the Revolution property editor opens.
Adjust the parameters as desired. For more information, see Revolution Property Editor (Curve about Curve) [Properties Reference].

Revolution showing the profile curve (A), the axis curve (B), and the result.