Today we worked on the get in gear investigation, which involved changing the gears on our NXT robot and seeing which changes caused the robot to go faster and which ones caused it to go slower. We discovered that the driving gear is the one connected directly to the motor, while the driven gear is the gear connected to that gear and the wheel.
If you were to make your driving gear bigger than your driven gear, the robot would move faster than if the gears were the same size. The reason that the robot would move faster is because the driven gear is smaller, so for every single rotation of the large driving wheel, the smaller driven wheel would rotate two or more times, causing the wheels to move faster.
The opposite is true if your robot's driven gear was bigger than the driving gear. Take what I said on the above paragraph and flip it, if the driving gear was smaller it would have to rotate at least twice (or more) times to turn the now larger driven gear just one time, this would cause the wheels to move slower than if the gears were the same size or if they driving gear was larger than the driven gear.
This was an important investigation because the fact that our robot has moved pretty slow in the past investigation despite the wheel power was at 100% was pretty frustrating, but now we know how to make it go exponentially faster, which will definitely come in handy in later investigations.
1 comment:
"robot has moved pretty slow in the past investigation despite the wheel power was at 100% was pretty frustrating, but now we know how to make it go exponentially faster, which will definitely come in handy in later investigations." I was hoping of the same thing, that this gear changing would actually work well and help us in our future investigations.
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