To access the full video please subscribe to FLLCasts.com
- #1440
- 29 Aug 2019
We say that one car is slipping, when its wheels are spinning, but the car isn't moving. This happens when the wheels of the car are on ice or in mud. Due to the differential gear structure, the wheel that spins the most has the least resistance. This means that if one of the driving wheels hangs in the air or happens to be on ice, it will start slipping, while the other wheels are not moving. This is extremely unpleasant, especially if it happens to a heavy vehicle.
Courses and lessons with this Tutorial
This Tutorial is used in the following courses and lessons
Level C1. "Transportation". Robotics with LEGO
This is the fifth level in the Robotics with LEGO curriculum for students in third or fourth grade.
For the first time robots with steering wheels are built in this level. Those robots use one or two drive motors. The work of the differential and its usage in vehicles is explored. Students learn in-depth the working of the light sensor to create better line-following programs. The first two-wheeled motorcycle-robot is built.
- 33
- 1:03
- 110
Lesson 2 - Off road truck
Introduction
In the previous lesson we've learned that the wheels of the car are rotating with different speed when the vehicle is making a turn and that is the reason they cannot be connected to the same motor. But what if we connect only one of the rear wheels with the motor and we leave the other one free?
Today we're experimenting with a truck that is designed to transport cargo through rough terrain. The focus here again is on the construction. Hopefully, you've learned to park in the previous lesson, because you may need it again!
- 2
- 4
- 3
- 3d_rotation 1