Pneumatics!

Stan, Ruy and Armando have built the first operational piston system for our Machine Control Capstone Project. Nice job guys!

? - How could you employ this system in your robotic marble sorting solution?

Working on Solutions

Joe, John and Kingston in progress on solving one aspect of their marble sorting robot!:

Don't Lose These!

Dear Principles of Engineering Students,

Please do not lose any of these sensitive items! We only have enough for one for each group:



These items are essential to the pneumatic systems we can integrate into our capstone projects.

What are pneumatics? How are they similar and different to hydraulics?

Click here to find an image of how we can set up a pneumatic compression system for our Fischertechnik kits.

Machine Control: Capstone Project 2012!

Welcome to our Principles of Engineering Machine Control (Robotics!) Capstone Project for the 2011-2012 school year. This is an exciting opportunity to work with your partners to develop a unique solution to an open-ended problem.

You will earn "Achievements" based on both the process you apply and the product you build. The team that earns the most "Achievements" wins!

This project is worth 7 points per week we spend on it and is capped at a maximum of 25 points. The top team will earn 100%. The second place team will earn a 92%. The third place team will earn an 89% and the fourth team will earn 85%.


Process Achievements:

Organize it!: Title your post and organize it by section in a logical manner.

Brainstorm!: Provide at least four of your team’s brainstorming ideas for the design solution. This should include brainstorming sketches. Each sketch should include labels and descriptions for communication.

CAD!:
Use our Inventor CAD software to model a prototype or your final design. Post screenshots of your model.

Enter the Matrix: Evaluate your solution ideas (4 minimum) using a decision matrix. Determine the best solution to the problem. Explain your rating system and share insight on why you rated your solutions as you did.

Design Solution: Create a detailed pictorial sketch or use 3D modeling software to document the best solution, based upon your team’s decision matrix. Your sketch or 3D model should include a rationale for the design selected as the final design solution. Each sketch should include labels and descriptions for communication.

"I've Made a Few Special Modifications...": Document modifications made to your design during implementation. Explain the reason for the modifications and describe how the new design solution will solve the problem. "Story" is the split between expectation and outcome. Tell us a story regarding what your plan was and how it actually came out! Use photos and sketches to call out three changes. (Nerd points if you know where the quote for this Achievement title comes from)

Final Implementation: This section will showcase your final hardware and software solution. Include photos of your hardware and program. Call out atleast three key features of your design that were significant to its performance. Report how your solution performed in the challenge.

Final Implementation - Video!: Embed a video that showcases your solution in action!

Reflection: Adress the four feedback types that we use in our courses (+, -, ?, !). Solicit feedback from someone outside of your team as well.
Some questions to consider in this section: How well did you accomplish your objectives? What would your team do differently with your design solution and why? Do the results fulfill the problem statement? Provide a brief explanation of what you learned, the challenges of working in a design team, and the purpose of the design problem.

Reference: Post a hotlink to material you referenced on the internet. Explain why this information is significant to your project.


Product Achievements:

Marble Sorting (some achievments scored multiple times):
Sort one marble (x1)
Sort two marbles (x1)
Sort three marbles (x1)
Sort four marbles (x1)
Sort four marbles (x2)
Sort five marbles (x1)
Sort five marbles (x2)
Sort five marbles (x3)


Sorting Speed (15 marbels total: 3ea of 5 types):
Process 15 marbles in less than 2:00 minutes.
Process 15 marbles in less than 1:45 minutes.
Process 15 marbles in less than 1:30 minutes.
Process 15 marbles in less than 1:15 minutes.
Process 15 marbles in less than 1:00 minute.
Process 15 marbles in less than 45 seconds.
Process 15 marbles in less than 30 seconds.


Marble Delivery (may use non-fischertechnik materials to create a "hopper" to drop marbles into for "Drop" achievements):
Drop marbles from 6" above machine
Drop marbles from 1' above machine
Drop marbles from 2' above machine
Drop marbles from 6' above machine



Systems (not including motor or piston used to charge your pressure vessel):
Use one piston
Use two pistons
Use pneumatics but less than three pistons
Use at least one motor

Branch Functions

We're getting into our RoboPro visual programming environment and Fishcertechnik robotics hardware in the Principles of Engineering courses.

What does this program do?

Class of Magicians!

We've turned our POE students into Magicians!

By calculating the material properties of this 2x4, they are able to predict the weight of another student based on how much it deflects (sags) beneath them.

It's a primitive set up but we've had groups calculate within a pound of the student's actual weight. Impressive!

The point of math and science is to be able to work our way up the "Knowledge Pyramid" (Data > Information > Knowledge > Wisdom)

Although this is a rough/hasty set up, we are able to take our measurements and gain a predictive capability from them. Very neat!

Arduino

We're going to get going with some Arduino Projects in our Principles of Engineering Courses (2nd and 4th Period) and in our Engineering Projects Class (3rd Period). I had ordered a batch for the students that had chipped in on the Engineering Fund. If you didn't contribute, and would like to get some hardware for yourself, here are some links to the products on Amazon:

The Arduino Uno on Amazon. When I posted this, the board was listed at $20, a very competitive price (The best price I could find when I ordered them for the class was closer to $30 :( )

The Uno Starter Pack on Amazon. This kit provides some basic goodies to get going with Arduino projects.

A USB A to B Cable is needed to interface the Arduino with a computer (Mac or PC). Programing is done in the Arduino Integrated Development Environment (free to download at Arduino.cc). An A to B USB cable is the type of cable that is typically used to connect a printer to a computer. You may be able to use an existing/left over one so only order if you do not have something on hand that is usable.


Optional Texts:
There is a plethora of information on Arduino on the web. If you prefer having a physical reference, here are a few to consider.

We have one or two copies of this in class. You may like to have your own:
Getting Started with Arduino

This book appears similar to Getting Started with Arduino but focusses on the programming aspect of the process:
Programming Arduino

Making Things Talk (as in electronic communications between objects) is an incredible text that a person could make a full college course out of. We will attempt a few of the projects in this book. At $20, this is an incredible value (even more so compared to the $100+ that you'll be paying for texts in college).

UNO

Speaking of integrated circuits (see the Google post beneath this), some hardware arrived today for our Principles of Engineering students just in time for the holiday.

What could these be?:

"I Love It When A Plan Comes Together"...

... well, we hope this one comes together!

4th Period reminded me there was a Holiday Door Decoration contest and was enthusiastic to participate. So we took today to brainstorm/prototype some engineering based decoration solutions.

Having an impromptu contest pop up is the perfect way to engage our Creative Problem Solving minds and it was neat to see how effective the class was at developing concepts and informally collaborating:





The proof is in the pudding however so we'll see if we're able to get something organized. Judging is after lunch tomorrow so we don't have a lot of time!

Contests/Problems seem to bring the best out of our teams. My goal is to have all of our efforts revolve around team based problems/challenges and I am working to that end.

Renewable Insulation Challenge!

The largest amount of energy consumed within the average home is related to maintaining adequate climate control through heating and cooling systems. To conserve energy and decrease expenses associated with climate control, proper home insulation techniques are required. Insulation technologies relating to materials and application have advanced throughout the home building industry with time. The home building industry once relied on straw and newspaper for insulating material. The industry currently utilizes technology such as fiberglass and blown expandable foam. Insulation material advancement is driven by consumers demanding insulation material designed for high insulation value along with positive occupant health and environmental impact. Many homeowners today are designing new “green” homes. To meet the needs of green consumers, insulation manufacturers are developing insulating materials made from recycled products such as jeans, t-shirts, and other low volatile organic products that can be treated with boric acid. Manufacturers have found that going green has other benefits to the homeowner as well, such as cotton’s ability to provide excellent soundproofing.





Criteria:
• Design a renewable composite insulation material.
• Achieve the highest R value in the class with your design.



Design Constraints:
• Composite insulation material must have overall uniform thickness less than or equal to one inch.
• Composite insulation material must have consistent internal composition.
• Individual insulation material(s) must be environmentally friendly.
• Individual insulation material(s) must be recyclable.
• Individual insulation material(s) must be economical.
• Composite insulation material dimensions must not exceed the overall dimensions of Heat box apparatus top.



Measurements and Calculations
See class handout


Conclusion Questions

1. Explain how your house might lose energy through radiation.



2. What modifications could be made to your team’s insulation design that allow for more energy efficiency?



3. Which beverage would be more beneficial for cooling you on a hot summer day – a cup of ice cold water or a cup of hot cocoa? Justify your choice.



4. How do birds insulate their bodies to prevent energy loss on the skin’s surface?

Safer Nukes?

Would this be a safer system for harnessing nuclear energy? How does this work?
Thanks to Joe Lee for the heads up on this (click on the image to enlarge it):

(Also a good example of an image that "tells a story")

Energy Sources!

Image from classroom-energy.org
Americans spend 500 billion dollars each year on energy. As populations and appetites increase, the world faces a challenge of significantly growing energy needs. Many unique energy sources are available. To meet future energy needs, engineers need to design technology to contribute new ways to harness energy, increase efficiency, and better transport and store energy.


Objective:
Your task as a class is to prepare a presentation on the different energy sources we use collectively as a society (9 types from the graphic above). The class must cover each of the sources listed.

Presentation Grading (4 pts)
The presentation is worth 4 points. The content and presentation standards will be selected and agreed upon by each class period (listed below). Half your score will be based on how well you as an individual address the agreed upon content and presentation standards. The other half of the score will be earned by the class collecitvely.

2nd Period Considerations:
Content:
• Energy Source - Overview, Steps for Harnessing Energy, Major Energy Uses
• Consideration of Efficiency/Conservation
• Costs - Setup, Consumer Costs
Process:
• Unified look/theme to entire presentation
• Reduced Text - Use bullets and talk to them
• Effective Images - do they tell a story?


4th Period Considerations:
Content:
• Uses
• Effect
• Pros/Cons
• Effiecy
• New Developments
Process:
• Unified Theme
• Bullet Points - "Speak to the bullet points"/"Write less, talk more"
• High Value Images - Do your images tell a "Story"?

Other Considerations (Your period may not have selected these as relevant for the presentation but please consider them anyways):
• Is the energy source classified as nonrenewable, renewable, or inexhaustible?
• What are the infrastructure requirements for utilizing this energy source?
• What emerging technologies will make this energy source safer, more usable, more efficient, cleaner, etc?

Blog Post Grading (2pts)
Post the images of your section of the "Energy Sources!" Presentation to your Blog. Copy and paste the following questions into your post after your slides and answer them.

1. Describe one thing that surprised you about the energy source that you researched and presented.



2. Describe one thing that surprised you about an energy source that another team presented.



3. Describe and defend what you believe to be the most important technological need regarding energy.

Rules of the Road

We've seen some extremely creative solutions to our Moustrap Racecar Challenge.

Much like our nation's tax system, there are some clever "exploits" (loopholes) available to sharp players. These aren't "wrong" for our game, just an opportunity for motivated Engineers to create a decisive advantage in the context of the current system.

Unlike our nation's bureaucracy, we have the advantage of being a lean, agile, design focused organization. We can rapidly collaborate to optimize our game design.

With an iteration of competition complete, what Criteria (rules) would you add to the Mousetrap Racecar Challenge to help "level" the playing field?

Generate a list of at least 3 ideas and be prepared to advocate at least one of them in our next class (Monday).

4th Period Getting Ready to Race!

4th Period has been making some solid progress on getting their Mousetrap Racecars together. Here is a sampling of the teams in mid build on their designs:





Kudos to Dan. To celebrate our Inaugural Moustrap Racing Series, he had the thought to bring donuts in for the class. That's "Human Centered Design" in action! :)

West Point Bridge Designer (WPBD) Challenge

This is a department wide challenge available for any Engineering student to participate in. Rather than devoting specific in class time for this event, it's an ongoing game that is an approved activity whenever you've completed your current coursework. Engage with this in place of non-engineering related activities.

The Challenge:
Build the cheapest bridge possible that successfully spans the gap (Your bridge must not only stand under its own weight, it must also support the weight of the test vehicle).

How To Get Started:
Click on the West Point Bridge Designer icon on your desktop to get the software going (If you are unable to find the icon, search for the software the traditional way using start>program files):




Proceed through each setup step to reach the bridge editor:




Build and test your bridge. The key way to reduce cost is by changing your bridge members to the smallest members possible. This is an "iterative" process. Fail early and fail often!

Achievements
You may earn the following Achievements. These are worth extra credit. Justification for each Achievement (screenshots and text explanation) should be compiled into a single post on your blog (remember, you can edit and update blog post to keep it current). You may be required to verify any results so keep copies of your files:

"Build it" (1pt) - Build a functional bridge. Display a screen shot and list the total cost. List one feedback item for each of our four feedback areas for this design (+, change, ?, !).

"My Best Result" (1pt) - Post your best result and your period in the comments section of this post.

"Best in Class" (1pt) - The best score posted in the comments section from each period may earn this Achievement.

"Best Bridge" (1pt) - The best score overall from any course posted in the comments section earns this Achievement.

Professional Interview

A primary objective of the Principles of Engineering course is to give our students a perspective on the different fields of engineering one could persue beyond High School. What better way to work towards this awareness than to conduct an interview with an engineer?

A selection of interesting people with engineering backgrounds. How many of these people can you name?:




Overview
Conduct a personal interview with a professional in the field of engineering, engineering technology, or another high-tech, high-demand field. Interview documentation must follow the outline format described below and consists of three major components: Professional Background; Interview; Interviewer Reflection. Completed interview documentation must be posted to your online portfolio (blog).


1. Discuss with your instructor who you would like to interview. Obtain instructor approval.

2. Contact the person you will be interviewing and obtain consent.


Professional Background

3. Gather the information below. Use the buddy system for all interviews. No interviews are to be conducted in private

a. Interviewee name:

b. Interviewee’s specific degree:

c. Interviewee’s place of employment:

d. Interviewee’s email address and/or phone:


Professional Interview

4. Ask interviewee the questions listed below and record exact responses in your engineering notebook. If you wish to ask additional questions, seek instructor approval.

· Please describe your engineering field.



· What is your current job title?



· Please describe your particular job and duties.



· What is your average work schedule?



· Starting with high school, describe your educational background chronologically.



· If you had it to do over, related to your career or education, would you do anything differently?



· What advice would you give to me as someone interested in pursuing a career path similar to yours?


Personal Reflection

5. Reflect on your completed interview and answer the following questions. You may also add additional reflections or thoughts.

a. What surprised you the most about the interview?

b. What was the most important piece of information that you learned form the interview?

c. How has this interview influenced your feelings about your future career?

Potential Energy

? - What building project/game could we do with that much cardboard?

Simple Machine: Wheel and Axel

Andrew and Isabel show off a very clean design for the examination of a Wheel and Axel simple machine:

AP Physics Top 20

Tommorow is our final day of engineering class for many of our Seniors. I wanted to pick everyone's brains for ideas on projects I could facilitate in next year's course that would support these important concepts that Mr. Lemei has identified for the AP Physics test:

Python

Our work with the Fischertechnik robotics kits used Robo Pro, a very nice visual programing environment.

For our first efforts with actual text based programming, we will have a look at the language Python. You can click through here to visit Python.org.

Non essential trivia - Why was this language named Python? A clue is that the command line shell (not quite an actual IDE (Integrated Development Environment)) is named IDLE.