Tamiya 70068 Wall Hugging Mouse Retro-Inspired STEM Kit  [70068]

Tamiya 70068 Wall Hugging Mouse Retro Kit

The Tamiya 70068 Wall Hugging Mouse is a compact STEM project that blends simple mechanics with basic electronics. Its twin motor setup drives the mouse while a sensor rod detects contact with walls, triggering a switch that makes the model zig-zag along edges. This behaviour is a clear example of a feedback mechanism in action.

Design and Drive

Built around two RE-140 motors, the mouse alternates steering based on input from the sensor rod. When the rod meets a wall it activates a micro switch which changes motor actions and keeps the unit following the boundary. The arrangement is ideal for demonstrating cause and response in control systems.

Who Should Build It

Made from strong polycarbonate and plastic, the kit is straightforward to assemble and suits first-time builders as well as seasoned hobbyists looking for a teaching tool. It makes a practical weekend project for anyone interested in basic robotics.