Creating Rounds
1. On the Model tab, click 
Round from the Engineering group. The Round tab opens.
Round from the Engineering group. The Round tab opens.2. Edit the radius to 5.
3. Press CTRL and select the edges 1, 2, 3, 4, 5, and, 6 as shown in the following figures.
4. Click 
.
.5. On the in-graphics toolbar, click 
Saved Orientations, and click Default Orientation.
Saved Orientations, and click Default Orientation.