Applied Mesh Gear! This is actually a modified version of the original gear box design. As the handle is turned the boat stays still but the sharks circle menacingly.
The boat needs a fixed point to be glued to. In this project I’ve added a fixed vertical shaft, the horizontal gear is then connected to a shaft which turns around the fixed shaft.
The disk with the sharks fits onto the lower rotating shaft and the boat is glued to the fixed central shaft.
In this prototype I’ve used the same gear set as the Mesh Gear mechanism. In the next version I’ll be using a larger main gear and a smaller pinion in order to slow down the sharks. They’ll look even more menacing if they circle the boat slowly.