chapter 2 playing with gears

Role of gears is to move robot between the motors and the wheels. However it doesn’t work only itself, it works with the whole robot. So, it may seem not important but it plays very important role in operating and moving robot.
The gears have two types, which are driven gear and driving gear. Driving gears are connected with motors, and driven gears are connected to the wheels. When the motors are operated, the gears are also rotated and they rotated wheels. Simply the role of gears is connecting motors and gears. When we think role of gears, the role of them are just connecting motors and gears, however it also affects other elements in robot such as speed.
Speed can be increased and decreased by the teeth of the gears. When the teeth of the driving gear are more, the speed of the robot can be increased. In opposite, when the teeth of the driving gear are less, the speed of the robot can be decreased. For instance, if the driving gear has 8 teeth, and other gear has 24 teeth, the speed of the robot will be increased 3 times faster. It’s because the time taken when 24 teeth gear rotates is equals to the 8 teeth gear to rotate 3 times. On the other hand, if the driven gears’ teeth are less, then the speed of the robot is increased.
There are other types of gears. Firstly there is work gear block. It looks like a stick and connected by gears. However, it doesn’t turned by the other gears. The other gear is clutch gear. It helps on strength of the gears.