This is one of the most useful 3D commands. In basic terms it takes a…
Vectorworks Tip 363 – Extrude Along Path (Direction Matters)
When you create an extrude along path the direction of your path is extremely important. Your profile object is always lined up with the start of your path and is then extruded along it. If your path is going in the reverse direction, you will find that your profile is mirrored.