| 1. | Select the Surfaces panel, spin subpanel. |
| 2. | Set the collector to node list and select the nodes in the proper order. |
| 3. | Define the axis of rotation using the plane/vector collector. |
| 4. | Enter the start angle value. |
| 5. | Enter the end angle value. |
| 6. | Click spin + or spin -. |
| 7. | To undo, immediately click reject. |