Tamiya 70068 Wall Hugging Mouse STEM Project Kit  [70068]

Tamiya 70068 Wall Hugging Mouse STEM Project

The Tamiya 70068 Wall Hugging Mouse joins the STEM series as a compact educational build that appeals to young makers and hobby modellers alike. The kit uses a two-motor arrangement to drive the chassis while a sensor rod guides the mouse as it travels beside walls in a zig-zag pattern. The simple circuit switch activated by the rod gives a clear, practical lesson in basic mechanics and electronics.

Movement and Mechanism

This design relies on two RE-140 motors that alternate steering when the sensor rod detects an obstacle. Contact from the rod trips a micro switch which changes the motor behaviour so the mouse can keep tracking along a wall. Observing this interaction helps explain feedback and control in a hands-on way.

Build Suitability and Materials

Parts are fashioned from durable polycarbonate and plastic, and the assembly is straightforward for newcomers while still engaging for experienced builders. The kit demonstrates core principles of motion and simple control systems, ideal for classroom activities or weekend workshop sessions.