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FTC Guided Experience: SPROCKETS & GEARS

Depending on what your team's robot is designed to accomplish, multiple parts may be required. Unsure of where to begin? Let's take a look at the parts used to transfer, restrict, or constrain MOTION on the robot. The REV FTC Starter Kit, which provides over 1400 parts, is a great way to start building the mechanisms of an FTC robot that is ready to drive.

The REV 15mm Building System is an affordable robotics build platform that is most commonly used within the FIRST Tech Challenge and in the classroom for educational purposes. The core to transmitting motion within the system is the 5mm hex (hexagonal, six-sided) shape. This hex shape is incorporated into the other main motion components, such as: sprockets, gears, wheels, and shafts. The two primary systems used to transmit motion are sprockets and gears.

SPROCKETS & CHAIN

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  • Better for transmitting motion over long distances

  • Changing sprocket sizes requires changing chain length

  • Chain is more forgiving in construction accuracy

  • Chain tension and wrap are important

 

GEARS

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  • Can be used for changing rotation direction

  • More compact

  • More flexibility in adjusting speed and torque

  • Gear spacing is important

 

 

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