Somerset Berkley Regional High School

1. Somerset Berkley Regional High School Robotics Engineering with LabView

2. 1. Engineering Design • Central Concepts: Engineering design involves practical problem solving, research, development, and invention/innovation, and requires designing, drawing, building, testing, and redesigning. Students should demonstrate the ability to use the engineering design process to solve a problem or meet a challenge. Ma.Science and Engineering Framework 2006

3. Standard 1.1 1.1 Identify and explain the steps of the engineering design process: identify the problem, research the problem, develop possible solutions, select the best possible solution(s), construct prototypes and/or models, test and evaluate, communicate the solutions, and redesign. Identify the problem Research the problem Redesign Communicate the solutions Develop solutions Select the best solution Test and evaluate Construct a prototype Ma.Science and Engineering Framework 2006

4. Step 1 Identify the problem Write down the original problem here. Student - Design, build and program a robot to: pull as much weight as possible What constraints have been placed on your team? (Deadlines, resources etc.) The only constraints placed on the robot is a deadline. The robot is supposed to be completed by May 15, 2014. Also no weights may be added to the top of the robot That are not part of function Ma.Science and Engineering Framework 2006

5. Step 2 Research the problem Explore other options via the internet Student: List the internet sites that were helpful. Site 1 http://www.teachengineering.org/view_activity.php?url=collection/nyu_/activities/nyu_heavy/nyu_heavy_activity1.xml Site 2 https://www.statefundca.com/home/StaticIndex?id=http://old.statefundca.com//safety/ErgoMatters/PushPull.asp Site 3 http://www.thenxtstep.com/2009/04/nxt-trailer-pull.html What did you learn from your research? A Our robot needs high gear ratios. B Our robot should have good traction. C The less friction produced the better Ma.Science and Engineering Framework 2006

6. Step 3 Develop solutions BRAINSTORM COLLABORATION • Student : Share your ideas with your design team. List your ideas below. • Build a tank type robot like a tug of war bot. • Build the trailer pull that can pull a large amount. • Build a stair climber Ma.Science and Engineering Framework 2006

7. Step 4 Select the best Possible solution(s) Student: Describe which solution(s) best meet the need or solve the problem. Describe exactly what idea or mixture of ideas your design team decided on for the first robot prototype? Use the next slide for your response. This tow vehicle and trailer are designed to be able to pull heavy loads. The trailer is designed to be very strong to be able to support very heavy loads, and the tow vehicle uses all three motors and low gearing to generate high pulling forces. Two hitching options are included for the trailer, a flexible hitch that tows similar to pulling with a tow cable, and a rigid tongue hitch that transfers some of the load weight to the tow vehicle's drive axle for extra traction, like a real trailer. This was the best. The robot uses the gears to produce more torque to move more weight. Ma.Science and Engineering Framework 2006

8. The Somerset Berkley writing rubric will be used for assessment. Student : Skillfully and imaginatively describe what your first prototype will look like. The first prototype literally looked like a trailer that is has an attachment to it. There was three gear ratios of three to one on the bottom, allowing for more torque. From there the motors, connected all the wheels. On top of the motors was the NXT brick. That’s how basically how the robot look. For a better perception of the robot just look at the picture. In the end, it was a large robot with multiple connections from the motors to the gears to the whole robot. The robot used its gears to pull a massive amount of weight in the trailor portion Our robot wasn’t able to produce enough pulling force to pull 1 pound.

9. Step 5 Construct a prototype Build a robot with your NXT lego kit Create a computer program for your robot. Use the next slide(s) for the digital pictures of your prototypes and computer programs. Look down… Ma.Science and Engineering Framework 2006

10. Step 5 evidence 1st Prototype picture and computer program

11. Step 6 Test and Evaluate the solution(s) • Does your robot work? Yes • Did it perform as expected? No • What changes are necessary for the robot and the program? Make gear ratios larger and robot heavier. • Does it meet the original design constraints? Yes • Is it safe? Yes • Lab work- Modify your robot project and use the next slide to post a picture of your improved robot project. Look down… Ma.Science and Engineering Framework 2006

12. Step 6 evidence 1st modified prototype picture and computer program

13. Step 7 Communicate the solution(s) Provide the YouTube link of your video that shows how your robot meets the challenge. YouTube video link : http://www.youtube.com/watch?v=mOElWoBkyyM Ma.Science and Engineering Framework 2006

14. Redesign Overhaul the solution(s) based on information gathered during testing and self-assessment activity.Understanding forces and how they interact with their environments has enabled engineers to create vehicles with amazing pulling power, such as tow trucks, fork lifts and tractors, and even snowmobiles and tugboats. One early stage of the engineering design process involves analysis of a project design using conceptual physics and mathematical models, which are used to develop a description of how objects interact with one another. Through these models, engineers are able to better problem-solve, understand, troubleshoot and improve the design of their projects, devices or products. We just needed a heavier and stronger bot. Ma.Science and Engineering Framework 2006

15.  •   Demonstrate the ability to use technology for research, critical thinking, problem solving, decision making, communication, collaboration, creativity, and innovation.