Create a sketch for the ring boss.
-
Click Extruded Boss/Base
on the Features
tab.
-
Select the top face of the part.
-
Click Circle
on the
Sketch
tab.
-
Move the pointer over the origin.
The pointer changes to
.
The ring boss is concentric with the base cylinder because
you started both at the origin. In the completed sketch, the symbol

indicates this relationship.
-
Click to place the center of the circle.
-
Move the pointer to create the circle.
-
Click to finish the circle and click
in the PropertyManager.