One of the more interesting features of the Stack component is the ability to repeat sections quickly. This enables the user to create interesting or useful patterns of geometry. In this example, we take a wedge section wrapped about a rod and repeat that section to create an auger. In a similar fashion, the user could easily create spirals, coils, springs, chains, etc. Creating an OpenVSP geometry with these features would be extremely difficult (and sometimes impossible) with any other component type.