Content for EV3

We've already build a number of resources for lifting at FLLCasts.com. But at the end of this course we would have a robot that lifts itself and hangs on the mission model.

How should an instructor use this course when working with students and a group of students in school

Where should you lift the robot? Especially if you don`t have the mission model that we are using

How to organize the different robots and group of students when working on lifting the robot.

Note for the teacher on how to organize the class to use different robot base constructions to accomplish the mission for lifting.

What is the end result? - have the attached on the mission model. What is the mechanism the would make the robot hang on the mission model.

Time to lift the robot. The first approach is by using the 40 teeth gear wheels that come with the LEGO Mindstorms EV3 and NXT robotics sets. 

Build a similar mechanism to this one. Similar, but for your robot. This is the task for you. Try, give yourself half and hour or even an hour.

There were a few problems with the 40 teeth gears that we were using. Let's list some of them

How to align the wheels and how much should you push for this solution?

Build a rack and try to lift the robot with this rack. 

Using the rack depends on the experience of the team. Based on this a different number of gear wheels and racks would be used.

Building a rack is a very important skill during competitions. You should try to build one, learn how to use it and have it as a tool for you next robots. But for this particular BoxRobot, we will not continue with a rack.

In this tutorial, we would drive the scissors mechanism and there are a number of rules that we must follow

Experiment with changing the orientation and direction of gear wheels. Here are part of the tasks that you should complete before moving forward with the course.

It this episode we would present you with our attachment for lifting the robot. 

One of the very common problems with the LEGO Mindstorms and LEGO Technic Gear wheels is then a tooth is skipped. In this video, I would like us to discuss this challenge and how do we solve it.

Here is the task for adding a beam on both sides of every gear wheel in your attachment.

The most stressed wheel in our system is the driven wheel. We've already fixed the problem with the driving wheel of the scissor mechanism and now it is time to look at the drive LEGO Mindstorms wheel. 

Construct two legs for both sides of the robot. The task for this video is to attach this two legs on both sides and to build a system of gears and axles that power those legs.

The important task before the solution. If you haven't done it already, then attach a new axle at the front of the robot and extend the construction with gear wheels and axles to reach the two legs at the two sides of the robot.