Systems

Gearboxes
- Motors spin at very high speeds but produce very little usable torque (generally).
- Gearboxes have sets of gears with varying sizes.
- What do gearboxes do?
  - Gearboxes allow you to change the axis of rotation for a gear
  - They also allow you to modify gear ratios.
  - For example, if you have a 5:1 gear ratio, you'll be able to make it so that by the time one gear spins 5 times, the other spins once.
- Why is a gearbox needed at all?
  - To change rotation axes
  - Transfers energy from one device to another.
  - Increases torque and reduces speed
Motors
- There are several types of motors legal for FRC use:
  - CIMs - fat, black, and really big
    - Used primarily for wheels
    - Bag motors - similar in appearance to CIMs but smaller and slightly less powerful
  - 775 pro - these are very versatile in their use and are almost always used with the versaplanetary gearboxes.
  - REV NEO - these motors are relatively lightweight and compact, allowing for high power density.
- Actuators
  - Type of motor that controls a mechanism that is inbuilt.
  - Makes use of motor and threaded axle for one directional movement.
- Pulleys and Sprockets
  - Pulley: Pulleys reduce load on motors so that components do not have to undergo as much strain.
    - pulleys are used with belts
  - Sprockets: Gears for chains.