Tamiya #TAM71101. This is a four-legged mechanical dog with various speed controls. The dog walks by transferring motor revolution to reciprocating motion via crank and linkage rod. Main body and legs are made of transparent yellow parts to allow viewing of internal mechanisms. Construction is simple as parts can easily be attached with screws. Wiring has also been made simple.
Tamiya #TAM71112. The galloping racehorse with jockey is loads of fun to build, loads of fun to play with, and educational too! Employing left and right legs moving at the same time, the legs and wheel base have been designed for stability and faster running. Overall this galloping racehorse can run 1.3 times faster than the mechanical rabbit.
Tamiya #TAM70203. This is the Low Current Motor Gearbox - 3 Speed from Tamiya's Educational Construction Series. FEATURES Outer case made from clear ABS material to allow the internal mechanisms to be viewed Gearbox features three gear ratios (12.7:1, 38.2:1, 114.7:1) Comes with 3mm hex drive shaft (length: 100mm) Crank plates can be used as wheels Gearbox attachment holes feature 35mm distance to allow compatibility with universal plate products RC300-FT-14270 motor included Alkaline batteries (1.5-3.0V) and solar panels (0.5V or 1.5V output) can be used to power gearbox (sold separately) Illustrated instructions.