Tamiya 89975 Mechanical Blowfish STEM Robocraft Model  [89975]

Clear Pink Shell and Tail-Driven Swimming Action

The Tamiya 89975 Mechanical Blowfish brings visible mechanics to the water, with a translucent pink body that highlights the crank and linkage drive. Builders can see how rotational motion is converted into the lateral tail swing that propels the model.

Learn by Building

This kit offers a straightforward introduction to basic mechanics and simple hydrodynamics. Assembly combines snap-fit pieces, a few screws and rubber tubing seals to form the waterproof compartments, making it accessible to newcomers to kit building. The exposed interior helps users study the motion of gears and rods as they work.

Run Time and Presentation

After assembly, the Mechanical Blowfish serves both as a functioning swimmer and an interesting display piece. Waterproofing is handled with O-rings and waterproof tape to protect the Type 130 motor, which is supplied pre-connected. The model is powered by a single AA battery for several hours of continuous operation.