Diagram of hexwound strings for music instruments, showing important cross-sections for comparison with other string winding types. Note the hexagonal core, round winding wire and relatively sharp winding profile.
<a href="//commons.wikimedia.org/wiki/User:GreyCat" title="User:GreyCat">GreyCat</a>
self-made in 3D, rendered and then edited in 2D editor; sources of 3D scenes available freely upon request.