This mechanism converts the small green gear¡¯s intermittent rotation into smooth continuous motion of the large outer disk. Each short burst of rotation stretches the red tension spring. Instead of passing this motion directly, the spring stores the input energy and releases it gradually, pulling the outer disk forward. When the green gear pauses or resets, the spring relaxes without reversing the disk, turning the pulsed input into an uninterrupted output.

Components — The large outer disk, the inner housing, the green intermittent gear, the red tension spring, and the central shaft.

How it works — Each intermittent twist of the green gear stretches the spring. The spring¡¯s tension then drives the outer disk ahead. As the gear resets, the spring relaxes without pulling the disk backward. Repeating the cycle transforms stop-and-go motion into steady rotation.

Applications — Motion smoothers, intermittent-to-continuous converters, gentle feed drives, demonstration models, and systems requiring shock-free rotation.

Why it matters — By buffering irregular input and releasing it as continuous motion, the spring provides a simple way to soften impulses, reduce vibration, and turn small intermittent steps into a reliable rotating output.