Creating a Tube
With the tube command, a tube is created from 3D geometric objects.
Location of Tube Command
You can access it under the Ribbon menu Home tab, Entities title.
Click on the Tube icon.
If you want, you can change the object properties by clicking the settings icon from the tubes toolbar.
At this stage, enter the object height in the value box on the auxiliary toolbar.
Click a point in the drawing area. The object will be formed.
Previewing the object and determining its location
Entering the object height in the value box on the tubes auxiliary toolbar
Creating the object by clicking the left mouse button