© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023
G. KochLearn Engineering with LEGOhttps://doi.org/10.1007/978-1-4842-9280-8_4

4. Gears

Grady Koch1  
Yorktown, VA, USA

Most power sources, like motors or engines, provide power to a device by rotating a shaft. But, from there, this rotation often needs to be transformed into some other kind of motion. For example, there may be a need to change the speed of the rotation of a LEGO motor. Or perhaps the need is to change the direction of the rotation or make the motor push harder than it currently does. Gears allow all these transformations. This chapter starts with a tour of the gears that come in the Robot Inventor set. After that, a series of exercises ...

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