Sketcher > Modifying a Section > Modifying a Spline > To Smooth a Spline
  
To Smooth a Spline
1. Select the spline you want to modify.
2. Right-click in the Sketcher window and choose Modify on the shortcut menu. The Spline tab opens.
3. Click Fit > Smooth.
4. Enter the number of points to use in averaging.
5. Click .