ef 152 engineering notebook - university of …...ef 152 engineering notebook t oday’s date:...

EF 152 Engineering Notebook Today’s Date: 4/2/2019

Name and contact info Talents Role / Responsibilities 1.Bryer Roberson Woodwork, Hands on, Excel Hands on/ designing with

wood

2.Elijah Berberette Coding, 3-D Design Coding, Support, Task Manager, Speaker

3. Chase Weigart CAD CAD Design

4. Andrew Counts CAD, hands-on Hands on/ designing with CAD

Planned Meeting Dates

Select a meeting Date and Time for the next two weeks (outside of class). Make sure all team members agree and commit to these meetings. Plan on completing this notebook during these meetings. Meeting 1: Date 1/27/19 Time 1-3pm Goal: Research Topic Meeting 2: Date 1/28/19 Time 3-4pm Goal: Finish Notebook

(Note: We listed all of the times that we have met including these dates)

Project Timeline: Look at project page & note key dates:

Jan. 29 Progress check

Feb. 1 Proposal due

Feb. 8 revised proposal due

Feb. 19 detailed design due/ begin build

Mar. 26 Project Check

April 2/4 project evaluations


Design Challenge: Adaptive Technology / STEM App / Community Service Design

Community Service Design

End Goals: What we will work to produce (without describing HOW to do it or what it is)

▪ We want to help the community.

▪ We want to design something that is easy to use.

▪ We will make an efficient product.

▪ It will be able to be used by all ages.

▪ Affordable

Indicators of Success: What measures and Indicators will help us know if our design is successful?

▪ Testing the product successfully with different people.

▪ Redesigning/ bettering our product.

▪ Asking for others opinions of the device.

▪ Does it do what me want it to do with ease

▪ Grade

Constraints: What constraints will we need to manage?

▪ Cost

▪ Age

▪ Time

▪ Size

▪ Efficiency


Perform some online research. What need might you address? What similar designs and solutions exist

that address this need? What could you incorporate into your design that hasn’t been done before?

List some key takeaways from your research.

▪ Wallets can cause back problems.

▪ Backpack are heavy and cause it hard to walk across hilly campuses.

▪ Stairs are hard for older individuals

▪ Some designs shirt wallets with skinnier material

▪ Some wheelchairs help individuals climb stairs

▪ It is hard for some individuals to focus

▪ Is there a solution that is not pharmaceutical?

▪ Everyday household items can be costly due to electricity

▪ Many items use solar power to reduce cost

▪ Grills can be costly due to gas, solar energy could possibly fix this issue. (Heat)

▪ Possibly design a device that helps with many of these issues

ID Possible Resources for Inspiration: Who can you talk to/where can you go to learn more?

▪ College students

▪ Men and women that carry wallets in their back pockets

▪ Older people, possibly individuals that struggle with stairs

▪ Individuals who struggle to focus

Select Resource: Who specifically will you talk to / where will you go?

▪ College libraries

▪ Public Parks

Interview Questions: What specific questions will you address?

▪ What can help the problem?

▪ Is there any product that he/she currently uses?

▪ What issues does this product have? (If they are currently using one)

▪ Questions about his/her everyday life, such as, do you drive or walk?


Interview/Field Notes: Capture what you see and hear. Note date, people, & location. What needs are there? What adaptations have users made to make designs serve their needs better? Capture observations, stories, and sources of happiness or frustration.

Walking from class to my dorm, we hear many students complaining that the items in their backpack are very heavy. 1/24/19

On the news, we see studies of how a thick wallet affects the spinal cord of individuals. 1/25/19

Throughout class, I see many individuals who cannot focus. These students are not prescribed medicine to help them focus. 1/25/19

Many studies on the internet show that using solar energy instead of normal electricity or gasoline is cheaper. 1/28/19


BRAINSTORMING. List or Draw your ideas for your project here. After you brainstorm pick your favorite 3 ideas.

Wallet Solar Grill

Lighter Bag

Focus Glasses

Walker for hills

Robot Helpful Code

App

Idea Evaluation: What ideas excite you? What is the most important value for potential clients? What is the real need you are addressing? What are the challenges and barriers to your ideas? What will be difficult to overcome? Which ideas work best satisfy your “End Goals” identified in Task 1?

▪ Is our design something every person can use?

▪ Does our product make everyday life a little easier by helping the issue?

▪ Is our product cheap to make? (Economically)

▪ The need we are addressing is the clients personal issues.


Determine which idea you plan to pursue. This should not be a vote but a consensus. Determine specific advantages of each option and work together to figure out which concept is best. Describe Your Idea.

Describe your target customer / target market.

Product Name: Solarized Grill

Our targeted customer is a variety of different individuals. This is because our product can be used by

any individual that chooses to use it; however, it is recommended for people who enjoy to grill.

Our device is a solar grill. It is a grill that does not receive energy from gasoline, only the sun. This is

efficient because it conserves energy and reduces cost.


Obviously, some designs found on the internet are going to be more efficient simply because the

suppliers have more of a budget and time.

We would like to see how difficult it is to actually create a device that people can use on a regular

occasion.

The greatest thing about our device is that it is made for all individuals that would like to use it.


TEAM NAME AND LOGO

Team name: The Solar Powered Spicy Bois

Team Logo:


PROTOTYPE DESIGN

Project Concept: We are attempting to design a solar-powered grill with a limited budget and a limited

amount of time.

Requirements to build:

● Cheap material that can absorb enough heat to cook certain foods.

● Time estimation (How much time will it take to cook food compared to other grills).

● Safety (Is this product safe enough to use).

● Usefulness (Is our product worth using)

● Determining what to cook on the grill (size, type, safety)

Statement of revisions or additions to your original proposal idea:

● More research has given us different ideas of how to design the actual product.

● We have discussed potentially using a material like aluminum foil.

● We have determined that in order to be safe, we should only cook certain products.


Design Documents

Base: We are going to attempt to design the base with wood. The wood should not be affected by the

heat because it is not cooking using fire.

The Angled Flaps: The flaps are going to be used as a way to generate the heat. They will be made out of

metal.

The Plate: The plate is illustrated in the top left and it will be made of aluminum foil and metal.


Schedule

(Week 1: 2/19 - 2/24)

Goals: Purchase materials and start to attempt to build a first prototype

Accomplishments: We were unable to purchase everything this week; however, we planned our project

on paper more than we previously have.

(Week 2: 2/25 - 3/3)

Goals: Finish building first prototype and test prototype and write down information based on tests

Accomplishments: We purchased everything that was listed above; however, we did not finish the first

prototype.

(Week 3: 3/4 - 3/10)

Goals: Correct all the issues that occured in first test and redesign on paper

Accomplishments: We decided to push the prototype until the week after spring break. This will give us

more time to study for Exam 3 and thoroughly plan our prototype.

(Week 4: 3/11 - 3/17)

Goals: Rebuild the prototype and test.

Accomplishments: We all had 3 exams this week, so we did not accomplish many of the items. We did fill

out the paper that was given in our lab. We all chose items off the list that we felt would benefit our

team and personal agendas.

(Week 5: 3/18 - 3/24)

Goals: Correct final errors, and rebuild prototype

Accomplishments: All of the team members were instructed to start working on the items listed on the

sheet given in lab.

(Week 6: 3/25 - 3/31) *WE DECIDED TO CHANGE THESE GOALS

Previous goals: Test final prototype and prepare to present


New Goals: We will meet everyday to attempt to finish our prototype. We will test the prototype and

check for errors before Thursday. We will have everything finished by Sunday. More information is listed

on a page below.

Accomplishments: We were able to finish our project by Sunday and test all of our approaches Monday.

(Week 7: 4/1 - Due)

Goals: Finalize project and present

Accomplishments: We finished our project and online items. We are ready to present.


Client Feedback

[Greg Slater]-

● “The design seems very simple, and the grill looks easy to use”

● “Is there any temperature control for the grill?”

● “Is there any storage features?”

● “How does the cooking time stack up against gas/charcoal grills?”

● “Is there any normal upkeep or frequent necessary replacements needed?”

(Note: These questions are going to be answered throughout our building process)


Materials

Aluminium Foil-

● Average price: $5-$7

● Amount: 1-2

● Place to purchase: Walmart or Dollar store

● Total price: $10-$14

Spatula-

● Average price: $5

● Amount: 1

● Place to purchase: Walmart or Dollar store

● Total price: $5

Wood-

● Average Price: This product can be found in the bottom of perkins.

● Amount: We have not set a certain amount; however, it will be inputed at the end of the first

prototype.

Metal-

● Average price: $5-$15 This product can be found in the bottom of perkins; however we will be

using some of the budget to purchase “clean” metal.

● Amount: We have not set a certain amount, so we designed our budget for a variety of different

amounts.

● Place to purchase: Home Depot or Lowes

● Total price: $5-15

Required Tools- Hammers, Drills (varying drill bits), Saws, Grinder, Sander

Plans for Storage- Store loose items in ox provided by EF and store the actual project in one of the

members dorms.

TOTAL PRICE- $20-$34

(NOTE: Some of the prices may change, this is a calculated estimation)


Images of Purchased items

Aluminum foil

Information about the aluminum foil: We decided to get the maximum size that Walgreens offered. We

chose Walgreens because it is closer to campus than the locations listed above. We also spent an amount

that was in range of our budget for this item.

Information about the other items: View material and time costs below.


Environmental Impact Statement

Using common materials such as metals like aluminum or sheet steel, wood, and recycled plastics

makes the production of this product more environmentally friendly.

Although there is an environmental impact of production, the solar grill utilizes solar energy to

cut out the need for a fuel source. This reduces the overall impact of grilling by ridding the user of

regularly buying propane, charcoal, or other sources. Production and extraction of these fuels is harmful.

For disposal, the majority of the grill can be recycled as scrap metal and other non-recyclable

parts should be disposed of as standard waste.


Time Logs

Meeting 1: Date 1/27/19 Time 1-3pm Goal: Research Topic

Meeting 2: Date 1/28/19 Time 3-4pm Goal: Finish Notebook

Meeting 3: Date 2/10/19 Time 7-8pm Goal: Pick out more images for design idea

Meeting 4: Date 2/14/19 Time 5-6pm Goal: Talk about the Detailed Design

Meeting 5: Date 2/19/19 Time 3-4pm Goal: Finish and submit Detailed Design

Meeting 6: Date 2/25/19 Time N/a: Purchased items

Meeting 7: Date 3/1/19 Time 6-7pm Goal: Discuss building process

Meeting 8: We met in labs only between the weeks of 3/4 and 3/11.

Meeting 9: Date 3/26/19 Time 4:10-5:00 Goal: Cut boards for initial box

Meeting 10: Date 3/27/19 Time 1:30-3:30 Accomplished: Finished box and made the grill holder

Meeting 11: Date 3/28/19 Time 3:25-5:00 Accomplished: Finished frame for top, drilled grill holders

Meeting 12: Date 3/29/19 Time 2:00-4:00 Accomplished: Cut and attached metal, sanded

Meeting 13: Date 3/30/19 Time 1:00-2:20 Accomplished: Went to home depot and bought more items

Time 6:00-7:00 Accomplished: Organized all of supplies and prepared to paint

Meeting 14: Date 3/31/19 Time 2:00-4:00 Accomplished: Painted box with two layers, attempted to flatten metal so that it would not cut anyone when touched.

Meeting 15: Date 4/1/19 Time 2:00-4:30 Accomplished: Made handles for the top of the box, tested box underneath a heating light, changed certain parts of the box, retested.

6:00-7:00 Accomplished: Worked on our video and presentation

11:00-12:00 Accomplished: Finalized powerpoint and summed costs

Note: ( We also met every lab section with all of our members there, except for one day. We also all attended these meetings.)

Additional Note: (Due to multiple tests and other personal interferences, it was difficult for us to meet between our meeting 7 and our spring break ending; however, we adjusted our goals above. This is no excuse to not finish everything and we plan to adapt, modify, and overcome.)


Task Paper Given In Lab


Adjustments Made to Task Paper Above

Dates: We decided that we were not going to accomplish everything throughout spring break so we

planned to finish all of the items together throughout the week between 3/25-3/31.

Tasks Assigned: Even though the paper above lists that certain people are responsible for certain parts of

the project, we have determined that is crucial to work on all of the items together. We have scheduled

meeting times throughout the entire week to accomplish everything that is listed.


Team Project Check for 3/26

PROS:

● We have a detailed set of goals to accomplish this week.

● We have changed our goals from things we should do to things we WILL do.

● We have all agreed to meet more this week than in all previous weeks.

● We have designed our project and plan to implicate it immediately.

● We have fixed the task sheet and will work together to complete EVERYTHING to the maximum.

● We have addressed certain problems on paper, and we will work to fix them while designing our

project.

● We have our materials and are ready to start building. Our first prototype will be done before

Friday.

CONS:

● We intended to already have our prototype finished, but failed to complete it.

● We did not accomplish many of the items we attempted to over spring break.

● We do not have a physical device to show in class.

● We do not have as much time as we previously had.


Tasks for Week (3/25-3/31)

Monday: Our goals for this day are to attempt to finish our notebook and prepare it for the check on

3/26. We accomplished our goals!

Tuesday: Our goal is to start building our first prototype based on everything that we have obtained from

interviews and research.

Wednesday: Our goal is to take a break from building the prototype and focus more on the task paper

given to us in lab.

Thursday: We will continue building our prototype and attempt to finish it.

Friday: Our goal is to finish the prototype, contact the people we previously interviewed, and attempt to

make sure that everything works properly.

Saturday: This is our biggest day. We will go back through all of the task information listed on the sheet

and make sure that we have accomplished everything. We will fix any issues with our project that we

have found. We will prepare to present our project to a real audience.

Sunday: Our goal is to make sure everything is ready. We do not want any loose ends. This is the day

where everything should be finished.

All goals met: All of our goals were met except we did not do it in the exact order that we intended.


Cost and Time Estimates

When initially calculating the amount of money that it would take, we estimated that we would only

need enough for the tin foil. This was not the case though. We decided to change the top of our design

and add a glass pane. We decided to get a heat resistant paint for the inside and the outside of the box.

We also came up with the idea to use lava rocks that were specified in holding heat. Lastly, we decided to

buy a metal frame for the food to sit on (This could be avoided by using metal from the basement in

Perkins).

In conclusion, here is a general layout of the costs:

Aluminum foil- 1 package of 65 square feet used, price for 1 is about $5.49. The price for 1000 units

would be for 65,000 square feet of aluminum foil. If bought in bulk it would be about $2469.40 for the

65,000 square feet needed for 1000 units.

Wood- We used about 6 square feet of wood. The wood was relatively thin, so it was not as high in price.

We used wood that we were able to scavenge from the basement of perkins; however, if one were to

purchase this wood at an average price of $2.40 per square foot for cheap plywood, he or she would be

paying approximately $14.40 for one unit. If we were to calculate the amount for 1000 units, we could

buy 6000 square feet of wood for about $9000. This is only if we were able to buy in bulk at about $1.50

per square foot.

Glass Pane- We decided to buy a 16inx12in piece of glass for $5.19; however, we only used 12x12. So

using proportions, we found that the price for one unit in terms of glass is about $3.90. If we were to buy

1000 units of glass, we could attempt to get it for about $2.50 per square foot. This would total out to

$2,500 for 1000 units.

Lava Rocks- These were approximately $4.59. This was the price for a 7lb bag. This means for 1000 units,

we would need approximately 3.5 tons. When looking up the average price of lava rocks per ton, we

found that lava rocks were about $75 per ton. This means that for 1000 units, the price of the lava rocks

would only be about $262.50. This is a huge discount.

Aluminum sheeting- We calculated that the price for one unit would be about $14. This would go down

significantly for buying in bulk. This means that for about 1000 units, we would be looking at

approximately $11000.


Canned Paint- We purchased the spray paint for about $4.29 a piece because they were heat resistant;

however, we only used approximately one-third of each can so the price we actually consumed was

approximately $2.86. If one were to purchase in bulk, he or she could get 1000 units for approximately

$2500.

Total price for one unit: $45.24

Total price for 1000 units: $27731.90 (Low price is mainly due to lava rocks being purchased in bulk).

Total work hours: (21*4)=84 hours; however, if we subtract the hours where one or more of the

members were not present, we have to subtract 12 hours. This means our total work hours was about 72

hours between 4 people. This is only the hours that were dedicated work hours, not short 15 minute time

intervals in lab when we spoke briefly about our project.

Retail Price: Due to the fact that we are targeting people living in poverty in underdeveloped countries,

we would attempt to get donations and other funds. We would also attempt to get individuals to build

these devices using community service hours. This means we would have a retail price of zero.

In conclusion: We designed this product as a cheap way to cook food in underdeveloped countries. When

attempting to sell this product, we would show how much money we could save by purchasing in bulk

and using community service hours.


Summary

Over the course of this semester, we have gone through multiple changes in our design and intended

consumer. Initially, we wanted to create something that would be used by any consumer; however, over

the first 1-2 weeks, we realized that this was not a good idea. This was due to the fact that so many

products have been produced that were more efficient than anything we could have made. Next, one of

the members in our group thought of an idea to attempt to help a community that was not in the United

States. This is when we decided to design “The Solar Cooker”. We knew that this product had to be

cheap, durable, and have the ability to cook food. Over the course of about two weeks, we designed a

product that met all of these demands. With this product, we hope to help the 3.8 million people that die

annually cooking in harmful conditions.


Work Cited

https://sswm.info/sites/default/files/reference_attachments/ANDREATTA%202007%20A%20Summary%

20of%20Water%20Pasteurization%20Techniques.pdf

http://www.kvalifood.com/page/slow-cooking-of-red-meat-slow-roasting/uuid/6a37fb42-4f7c-11e6-a9e

a-a5505dd31aa3

https://sswm.info/sites/default/files/reference_attachments/ANDREATTA%202007%20A%20Summary%20of%20Water%20Pasteurization%20Techniques.pdf

https://sswm.info/sites/default/files/reference_attachments/ANDREATTA%202007%20A%20Summary%20of%20Water%20Pasteurization%20Techniques.pdf

http://www.kvalifood.com/page/slow-cooking-of-red-meat-slow-roasting/uuid/6a37fb42-4f7c-11e6-a9ea-a5505dd31aa3

http://www.kvalifood.com/page/slow-cooking-of-red-meat-slow-roasting/uuid/6a37fb42-4f7c-11e6-a9ea-a5505dd31aa3