Product Principle:

The Geneva drive is an intermittent motion mechanism that has three forms: outer drive, inner drive, and spherical slot wheel. In the outer drive, the directions of rotation are opposite. In the inner drive, the directions of rotation are the same. The spherical slot wheel can perform intermittent motion between two intersecting axes. The slot wheel mechanism converts continuous rotation into intermittent motion.

Gameplay Points:

Gently rotate the handle at a steady speed and observe how the Geneva drive mechanism converts the continuous rotation into intermittent motion.