Revolved Shell with Freely Defined Profile

 

1.
Activate the Shell Tool and choose the revolved geometry method with detailed input method.
On the Floor Plan:
2.
Draw the Shell profile - a polyline or a closed polygon - with the usual polygon input method.
3.
Double-click to complete the polyline or polygon.
              
4.
Click twice to draw the revolution axis. The initially placed revolution axis is always parallel to the Floor Plan, though you can edit it later.
5.
In the appearing dialog box, enter the Shell’s revolution angle. A positive number will revolve the Shell toward you. A negative number will revolve the Shell away from you.
6.
Click OK to complete the Shell. View it in 3D.
In the 3D Window:
1.
Choose the input plane. Either click to find the default plane, or choose another input plane based on points and/or a linear ege. This is the plane on which you will draw the profile and then its revolution axis.
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While you define the input plane, automatic feedback will show the possible planes. When you see the plane you want, click to make it appear.
2.
Draw the Shell profile - a polyline or a closed polygon - with the usual polygon input methods.
3.
Complete the polygon.
4.
Click to define the center of the revolution axis.
5.
Move the cursor to complete the revolution axis. (Navigate in the 3D view to find the best angle for seeing the feedback.)
6.
The Shell is complete.