The kit comes with a QR code that links to a learning guide detailing the mechanism, operating principles, key features, formulas, and engaging tasks. You’ll also get access to an AR app to see the random generator in action.
Instead of a coin toss, the Ugears Random Generator offers a fun, educational way to settle everyday decisions. Inside a cube, an octahedron with a weighted metal ball is set in motion by a manual rack-and-gear drive. As the energy dissipates, gravity pulls the ball to one of the octahedron's vertices, which then determines the cube face with the final message (like “YES” or “TRY AGAIN”). Due to its symmetric design, each outcome has an equal probability of 1/6.
Key components include:
Button
Rack-and-gear drive
Overrunning clutch
Driven wheel
Three-axle gear
Cube and internal octahedron
Weight
Ugears STEM kits are designed for various ages, offering a quick and fun assembly process with precisely laser-cut wooden parts (no glue needed), a step-by-step instruction manual, practical lab tasks, and two QR codes (one for a study guide and one for the AR app).
Specifications:
Model size: 6.8 × 4.8 × 5.2 in (17.3 × 12.2 × 13.2 cm)
