Cycloid

This creates a sort of rolling curve. This curve is described by a point located on the circumference of a circle as the circle rolls along a straight line. (This point can also be located inside or outside the circle.)
Cycloids, epicycloids and hypocycloids are particularly suited to rotating types of movement such as walking, gear mechanisms and planetary orbits.

 

Just a small selection of possible shapes that can be created with this Node.