This is a simple crank rocker mechanism that originated from a video on Facebook. Let's create it using blocks!
▼ Materials for the imitation millstone section.
▼ Construct the rotating part imitating a millstone.
▼ Create the handle part (remember to use a bearing where rotation is needed!).
▼ Next, assemble the puppet part.
▼Ha! A rather peculiar-looking figure.
▼Strike a pose!
▼Attach the puppet~~90% completion. Once you add the battery compartment, you can give it a test run!
★ Scientific Principle
Linkage: The component that connects the crank and the rocker, enabling the motion between them. It is referred to as a linkage.
Crank: A linkage with a fixed axis capable of performing a 360-degree rotational motion. It is called a crank.
Rocker: A linkage with a fixed axis that undergoes a specific angle of oscillating motion. It is referred to as a rocker.
The completed video can be found here!