Sketching the Second Revolve Profile Arc

Now create the vertical line and the second arc.

1. Click Line on the Sketch tab.
2. Sketch a vertical line downward approximately 150mm long, starting at the lower endpoint of the arc.
   Do not dimension the line at this time.
3. Click 3 Point Arc on the Sketch tab.
   You might need to click the down arrow on the Arc flyout button to select the 3 Point Arc tool.
4. Sketch an arc so that the arc centerpoint and endpoints are coincident with the line. (Watch for the pointer.) Use the following measurements:
   • Length approximately 40mm (L=40)
   • Angle approximately 180° (A=180)
   • Radius approximately 20mm (R=20)
   
5. After clicking to end the arc, set the angle to 180° in the Parameters section of the PropertyManager.
6. Click Smart Dimension on the Sketch tab, and then dimension the arc radius to 20.
   
7. Click Trim Entities on the Sketch tab.
8. In the PropertyManager, under Options, click Trim to closest .
9. Select the highlighted segment to delete it.
   
10. Right-click in the graphics area and select Smart Dimension . Dimension the upper vertical line to 40, as shown.