Tamiya 71103 Mechanical Beetle Educational Obstacle Robot Kit  [71103]

Tamiya 71103 Mechanical Beetle - Educational Obstacle Robot

The Tamiya 71103 Mechanical Beetle is designed to teach practical engineering basics with a hands-on build. As a member of Tamiya's STEM series, it lets learners explore how mechanical drives and basic wiring create an autonomous walking toy that responds to its environment.

Drive System and Appearance

The model uses a legged drive to simulate a beetle gait while the horn swings as it moves, producing an engaging walking action. On encountering obstacles the mechanism causes the unit to change course automatically. Clear body and horn parts expose the gearing so builders can inspect how motion is transmitted.

Build Steps and Key Options

Assembly combines screws and snap-fit pieces to keep the process approachable. Marked wiring helps avoid connection errors. Two gear ratios are provided so you can opt for slower, torque-heavy movement or quicker strides, and a reverse switch lets you test backward motion.

Running Advice

Use on level, smooth surfaces for consistent walking and accurate obstacle avoidance. Contain the beetle in a bordered area to showcase its turning and evasion patterns. Avoid uneven or inclined surfaces to prevent inconsistent behaviour.