2. Project Overview Introduction Clawbot Build Design Modification
Design Development
Programming
Sensors
Advanced Sensors
Open design challenges – Level Climbing
Project evaluation

3. TODAYS CHALLENGE Controller operation Autonomous OR
Level Climbing Today’s challenge is to climb a level and drop off an object. The brief sets out the following task: “Design and programme your robot to drive forward, over a ramp, and up a level before dropping off an object into a container. The robot must navigate over the obstacles either controlled or autonomous, but must be designed to avoid falling over. The robot must be able to navigate over the ramp with the object in its claw, and drop the object off into a scoring trough.” In your teams, discuss the challenge and decide if you want to create an autonomous or controller operated robot solution.
Controller operation
Autonomous OR

4. LESSON 09

5. LESSON 09 STARTER
Learning objective: Analyse the design brief. Establish a range of solutions for a robot that consider autonomous and controller type robots. Propose, build, test and present a working solution as a team.
In your Notebook… Task 1: Note down all the elements of the challenge and draw a detailed drawing of the arena you are going to compete over set down by your teacher. Things to note: - dimensions of any items you need to interact with (objects and parts of the arena) - number of objects in the arena you need to interact with - the time limit you have to complete the challenge - any initial issues you have identified based on your existing robot build
Key words: Programmable, environment, design, manufacturing and application

6. LEVELS CHALLENGE The Arena 8ft 8ft
Depending on your classroom set up, you will need to plan to compete in the following 8 foot by 8 foot arena. Walls are 6 inches high.
8ft
8ft

7. LEVELS CHALLENGE The Ramp
You will need to drive over a ramp (as shown here). Your task is not only to get over the ramp, but to remain stable enough that your robot can continue to drive on to the ramp and the goal area of the arena.
This ramp features in the VEX Robotics Competition ‘Toss Up’ as an obstacle robots need to drive over to commence scoring.

8. Distance between ramps for the wheels
LEVELS CHALLENGE
The Levels
You will need to navigate up a ramp to score in the top scoring section of the obstacle as you can see below. You will need to note down the following important information so that your robot will be able to complete the challenge.
Height of container
Distance between ramps for the wheels

9. LEVELS CHALLENGE
VEX Robotics Clawbot Build Time In teams build your solution. Remember, you don’t have to change the entire robot. It might take only small changes to achieve your goal. It might take new parts, or you might need to move or remove existing parts.

10. LEVELS CHALLENGE
Challenge Time “Design and programme your robot to drive forward, over a ramp, and up a level before dropping off an object into a container. The robot must navigate over the obstacles either controlled or autonomous, but must be designed to avoid falling over. The robot must be able to navigate over the ramp with the object in its claw, and drop the object off into a scoring trough.”

11. LESSON 09 PLENARY
As a class, let us consider the following questions? A. Why did you choose autonomous/controller?
B. What was the benefit of choosing the other in hindsight?
C. What aspects of controller and autonomous could you combine for a better solution?
D. What made autonomous/controller hard to achieve the perfect solution?

12. SUMMARY Today you have:
Learning objective: Analyse the design brief. Establish a range of solutions for a robot that consider autonomous and controller type robots. Propose, build, test and present a working solution as a team.
Today you have:
Learnt to discuss in teams the analysis of a design brief
Developed solutions for a robot challenge using autonomous and controller solutions
Developed a robot solution which can be tested and evaluated