Mechanical Counter STEM Lab – 3-Digit Geneva Drive Odometer & Counting Model

A functional and educational wooden mechanical counter designed to demystify the inner workings of industrial measurement tools. This STEM kit provides a hands-on exploration of how repetitive linear or circular motion is converted into precise rotary counting, a principle used for decades in car odometers, production lines, and turnstiles.

The model features three cylinder gears labelled 0–9, capable of registering any value from 1 to 999. It utilizes a classic Geneva Drive mechanism to ensure accurate indexing between the digits, which can be operated via a satisfying click-button or a smooth turn handle. To enhance the learning experience, the kit includes a QR-code study guide and access to a dedicated AR app that visualizes the mechanical logic of the counter in real-time.

Type: Educational STEM Model / Mechanical Odometer

Material: Wood

Counting Range: 1 to 999

Style: Technical / Scientific / Industrial

Features: Geneva Drive mechanism, click-button and handle operation, AR app integration, QR-code study guide

Usage: STEM education, physics demonstration, mechanical counting logic

Occasion: Educational gifts, school science projects, young engineers (Ages 8+)