LEGO Technic Grand Piano Key Mechanism
Build a working LEGO Technic piano key mechanism and explore how levers, pivots and linkages transfer motion through a mechanical system.
Difficulty: ★★☆
Approx build time: 30 minutes
Topics: levers, linkages, motion transfer
Grand Piano Mechanism
This build recreates the lever and linkage system used in a
grand piano key. Pressing the key lifts the hammer through
a series of linked mechanical movements.
- Demonstrates Lever Mechanics
- Shows linked motion transfer
- Ideal for STEM clubs and physics demonstrations
- Free downloadable build instructions
Build Video
Demonstrated Concepts
- Levers and mechanical advantage
- Linked motion and force transfer
- Design Iteration
- Engineering Mechanisms