Closing the holes from Revolve
Select your EP curve in Object Mode.
Hold right-click and choose Edit Point
Select the start or end point of your curve, and hit W to move, it should look like this:
4. Click the Snap to Grid icon in the top middle of the screen
5. Move the point and it will align exact with the middle grid line
6. Do the same with the end point.
7. Hold right click and go back to Object Mode
8. Use Surfaces -> Revolve and click the little box, then use the settings in the other tutorial post (Axis Y, segments 12, polygon, quads)
Troubleshooting
Sometimes the tool settings can be changed and will produce weird results, make sure Axis preset is Y.
You can reset almost any tool’s settings back to default:L
1. when you have the tool’s settings open by clicking the box next to the menu name, choosing Edit-> Reset Settings
2. by double clicking the tool’s icon and clicking the Reset Tool button.