Click View tab 3D Palettes panel Visual Styles Manager.
With the current visual style selected
in the sample images, in Edge Modifiers, click the Overhanging Edges
button and adjust the amount of overhang in Overhang.
NoteThe overhang is scaled
to look appropriate in viewports of different sizes. The overhang
effect is not applied to a line that is less than twice as long
as the overhang would be.