Choose Home tab→Pattern→Pattern.
Select one or more features to pattern, then click the Accept (check mark) button on the command bar.
Define the plane you want to arrange the pattern on. A profile true view is displayed so you can draw the pattern profile.
Choose Home tab→Features→Circular Pattern.
Place the circular pattern profile.
In the Assembly environment, select parts which you want to include in the pattern.
Finish the feature.
Tip:
You can select the features you want to pattern before clicking the Pattern button. The command automatically advances to the Plane or Sketch step.
You can also pattern edges, surfaces, and design bodies.
You can also construct pattern features in the Assembly environment using the Pattern Assembly Feature command.