LEGO TECHNIC is designed to allow builders to create more advanced models with moving parts, like those built with LEGO MINDSTORMS. The Unofficial LEGO TECHNIC Idea Book: Gears offers hundreds of ideas and examples for building mechanisms with TECHNIC. This volume focuses on gears and power transmission. The book is color throughout, with little to no text accompanying its diagrams. It begins with the basics of gears, shafts, connectors, and gear combinations, then demonstrates more complex actions, such as how to build winches, cranes, and chains; change rotational motion to linear motion; launch projectiles with rubber bands; change speed and direction; and even create musical instruments. The Unofficial LEGO TECHNIC Idea Books are for anyone who wants to create a moving masterpiece, as well as those who want to make original robots with MINDSTORMS.