Academy 9-18174 - ACADEMY EDUCATIONAL - ROLLING BALL TIMER

This visually detailed and operational model is great for STEM learning, hobbyists, or display-it combines both educational value and engaging mechanics.

- Inspired by da Vinci's escapement sketches
- Uses gears and gravity to run
- Variable timing by gear weight
- Snap-together; no glue required
- No paint or tools needed
- Ideal for STEM education

The Rolling Ball Timer is part of Academy's Da Vinci Machine Series (kit #18174). It's inspired by Leonardo da Vinci's sketches for an escapement mechanism that uses gravity and motion to track time.

It's a snap-together model with pre-colored, textured plastic parts-no glue, paint, or tools needed-making it beginner-friendly and clean to build.
Illustrated step-by-step instructions are included, plus realistic decals for extra detail. The kit provides a fun hands-on lesson in gravity, kinetics, and mechanical escapements .

When assembled, precision gears drive a seesaw-style platform that propels a rolling ball. As the ball moves, it shows the passage of time, with speed adjustable by adding weight to the gear arm.