Homework 14 (July 18, 2013)

Group: The captain should email everyone to make sure they have a job pushing your project forward.  Email your wishlist to pcabuildingcommunity@gmail.com.  Work on the website – there should be the company name, mission statement and pictures/explanations of your first (and possibly second) prototype.

Use as much of the weekend as you can addressing your Individual Challenge.  You will need most of your class energy next week for your group project.  If you need programs for laser-cutting, you can download Illustrator and use the free trial (https://creative.adobe.com/products/illustrator). If you want to use the 3-D printer, use thingiverse.com and augment the object on Sketch-Up (remember to get the free version: http://www.sketchup.com/download)

Damocles picture “quiz” – have you been asking questions of each other, TAs and Triggs?  Start collaborating!

Requested Info:

ropes: 1/4 inch yellow polypropylene rope with a tensile strength of 5.5kN
boulder: 1 ton with a diameter of 1 foot and 8 inches
length of ropes: (can be determined using proportionality. Use the picture and remember that the diameter of the boulder is 1 foot and 8 inches)
The person, knots and wire can hold 10,000 pounds
The person can bench press twice his body weight (wow!)
Distance between person and boulder (can be determined using proportionality. Use the picture and remember that the diameter of the boulder is 1 foot and 8 inches)

The downward force of the weight: Weight is the force due to gravity. Since the gravitational force (weight) is between the rock and the earth, the force the rock experiences is towards the earth. The short answer is 1 ton (convert to Newtons, perhaps?)


Notebook Check #2

  1. All the components of the notebook such as table of contents, numbering, etc will be checked again
  2. The following topics will also be checked
  • Documentation of Individual Challenges
  • Brainstorms for Group Challenge
  • Document Trying to Fix Your Broken Things
  • Chapter 18 Example Problems

Homework 13 (7/16/2013)

Group: Whoever takes the prototype home should do user testing. Record (video, audio, written reflection) your experience. Everyone in the group records ways that the prototype works well, needs improvement, and any questions you have.

Decide what Individual Challenge you will take on and draft a paragraph proposal of what you want to do in your notebook.

From the Damocles picture “quiz”, make a model, also known as a free body diagram (imagine just the front view of a technical model) in your notebook.

Homework 12 (7/15/2013)

If you haven’t yet: finish your journey maps (labeled page 16 in the  Empathize and Define packet).

Then do:

1. Brainstorm through the storyboard technique.  Do two 5-minute sessions in which you try to rapidly DRAW solutions (one solution per box).

2. Powers of ten (labeled page 18): Add a constraint that changes the magnitude of the solution space and try brain storming again. “What if it had to cost more than a million dollars to implement?,” “What about under 25 cents?,”  “What if it was physically larger than this room?,” “Smaller than a deck of cards?,” “Had no physical presence?”, “Took more than four hours to complete the experience?”, “Less than 30 seconds?”. More power to you.

3. Read the Brainstorming Rules, Facilitating a Brainstorm and Selection in the Empathize and Define packet (these pages are labeled 28-30) in order to prepare for group brainstorming in class.

Homework 11 (7/11/2013)

Spend 2 hours total doing the following activities:

1. Reflect on your own experience when it comes to what concerns you with your community,

2. Interview other people in the community about their experiences about your concerns and

3. Research online about the history of your concern in your community and current action being taken.

Website Criteria


-The “About Us” must include every member’s name, first name at least
-The “About Us” must contain a well thought out purpose of the group.


-The individual “About Me” must contain the first and last name of student
-Students must have their bachelor’s degree with its major and what college it was attained, as well as their Master’s degree with its major and what college it was attained.
-Research is conducted during post grad (while getting Master’s and PhD). Students must indicate what research they did and under what professor.