Kevin GT-EFOLIO

1.Define the Problem

What need or want must be met by the solution?

 

I have to make sure that my crain strain is able to hold a certain amount of weight.

 

2. Brainstorming

List/sketch possible solutions that might be used in your final design.   Clearly identify and describe how each of these ideas relates to the problem statement.

 

***In Notebook***

 

3. Research and Generating Ideas

In the space below, document your research.  Be sure to include proper citations at the end of your notes.

 

• http://prezi.com/on7slzh7bzzk/crane-strain/

• http://www.ehow.com/how_5993565_build-crane-school-project.html

• http://www.mobileresources.net/mobi/Strong_Popsicle_Stick_Crane/

• http://create-and-make.com/tag/popsicle-construction/

• http://liberty.jacksonsd.org/download.axd?file=34059af0-2bf3-47ef-b533-36414e3426a2&dnldType=Resource

 

4. Identifying criteria and specifying constraints

What are the criteria and constraints of the design problem?

 

Criteria: I must use ONLY the materials provided for.

Constraints: The size and weight of the objects as well as the crane.

 

5. Exploring possibilities

Reflect on your brainstormed ideas and research notes and describe the plusses and minuses of each design approach you have considered.

 

Plusses: The designs I have brainstormed and researched have good structure, meaning it will support a good amount of weight.

Minuses: Depending on the amount of weight, will determine if the structure of the crane will be enough to hold it.

 

6.  Selecting an Approach

a.Enter the constraints and criteria of the project in the first column.

b.Score your brainstorming ideas against each constraint or criterion and indicate how well the idea meets the criteria and constraints.

     3 pts = easily meets, 2 pts = somewhat meets, 1 pt. = does not meet

c.Total the columns and circle the highest score to indicate your best design idea.

 

**Done seperately**

 

7. Developing a Design Proposal

Based on the evaluation of your ideas, develop a design proposal for the highest scoring idea.  Include working drawings (sketches with dimensions, so that you could build your project). Attach your working drawings to this sheet.  Determine the materials you plan to use based on your design.  List the material and quantity below.  

 

- 30 Craft Sticks

- 1 piece of wood (3” x 3” x ¼”)

- Wood Glue

 

8. Making a model or prototype

In the space below, document the construction of the model/prototype. Be sure to include sketches/pictures as appropriate.

 

**In Notebook**

9.Testing and Evaluating the Design, using specifications

As you create your solution, you will perform tests to make sure that the solution is meeting the needs of the given problem. If your solution does not work, you may need to repeat the previous steps of the Engineering Design Process, until you find a functional design. In the space below, document the type of tests you conducted and the results.

 

Work:

1.  2(11)=(20)+3|22=3

2. 2( 11)=(31)+3|22=34

3. 2(12)=(23)+3|24=25

4. 2(12)=(28)+3|24=31

5. 2(6)=(9)+3|12=12

6. 2(11)=(18)+3|22=21

7. 2(11)=(20)+3|22=23

8. 2(16)=(22)+3|32=25

9. 2(9)=(12)+3|18=15

10. 2(11)=(16)+3|22=19

11. 2(11)=(19)+3|22=22

12. 2(11)=(19)+3|22=22

13. 2(14)=22+3|28=25

14. 2(10)=(17)+3|20=20

15. 2(8)=(13)+3|16=16   

 

10. Refining the Design

Based on your tests, what design refinements should be made to the prototype to ensure that it can satisfy all of the criteria and constraints of the design problem.

 

I must make sure the number of joints and members equal the same in order to be able to create a superior structure.

 

11. Creating or Making It

Modify your model/prototype to incorporate the design refinements you identified in section 10. What additional steps would be necessary to produce the final product for the customer?

 

Create a second part of the model in order to make it 3D.

 

12. Communicating processes and results

 

a. Demonstrate the operation of your Crane Strain device to the class.As part of your demonstration, describe the steps involved in creating your device.

b. Complete the Crane Strain Efficiency calculations and present your data to the teacher.

 

Creating my crane was't very simple. I had many predicaments that occured during the building proccess. First I didn't cut all the sticks to the exact measurements. This caused many of the sticks to become out of line. Then sadly enough we ran out of the normal sized sticks and so was forced to use ones of larger dimension. The larger sticks were much more durable compared to the normal sized ones. Then once those ran out we had to use even bigger ones! It was very frustrating on trying to figure out how i was going to make this crane work. Also someone from another class attempted to take mine but I was able to find it and cotinued to build my crane. Since the sticks were not the same size I was not able to use the same design. I eventually built the crain and tested it. It turned out to be a complete monster. I maxed out completely with no bendage or breakage. Even though it was hard to build I was still able to succeed in the test.