Senior Project - Conceptual Design Report

8/3/2019 Senior Project - Conceptual Design Report

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Sponsored by the San Luis Obispo Childrens Museum

Concept Design Report prepared by:

Jared August [email protected]

Richard Gomez [email protected]

Kathryn Hahn [email protected]

Kevin Wilkins [email protected]

SLO Magnetics
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


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Introduction

The Concept Design Report is intended to clarify the goals and prospective design of the magnetic

exhibit for the San Luis Obispo Childrens Museum. Input has been gathered from previous

meetings with the exhibits committee, and the specifications agreed upon are included in the report.

The team requests that the committee read over the report, and provide us with a response. Oncewe receive a response, we will proceed with ordering materials and building the exhibit.

Project Definition

The goal of the project is to build an educational museum exhibit for the San Luis Obispo

Childrens Museum. The exhibit will be aimed at children ages 6-10, and will incorporate STEM

(Science, Technology, Engineering, and Mathematics) learning objectives. The exhibit will teach

children about the fundamentals of magnetic fields by utilizing the natural curiosity of children.

Ferrofluid, also referred to as magnetic liquid, will be used to entice the viewers imagination andcreativity. An interactive display will be designed so that children can take a hands-on approach to

learning and having fun.

Specifically, four independent stations, on two tables, have been decided on that have the potential

to be combined as one large exhibit.

1. The first station will consist of ferrofluid suspended in a clear medium contained in a largecylindrical tube. Around that tube there will be an array of magnets that are used to interact

with the ferrofluid. This interaction will display the magnet field with ferrofluid spikes.2. The second station will consist of a two-dimensional tabletop of the same ferrofluid and

clear medium. There will be a variation in the learning objectives due to the difference of thecontainer. This second station will show how magnets can be attracted to each other.

3. The third station, if time permits, will allow the exhibit to tie ferrofluidics to commonmagnetics that most children have had experience with. Iron fillings would be incorporated

to show magnetism similar to an etch-a-sketch or possible use the filings to create something

fun. The idea will be developed further once the other two exhibits are completed, time

permitting.4. The fourth station, if time permits, incorporates a similar effect to an etch-a-sketch but with

a different point of interaction. Different stations of magnetic viewing film will be utilized in

order to visually show magnetic fields created by different shaped magnets. The idea will be

developed further once the first two exhibits are completed, time permitting.Each of the stations will include magnets, proper signage, and literature pertaining to proper

upkeep.


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Ferrofluid

Ferrofluid is the main technology that will be used in the exhibit. Ferrofluid is a stable solution

made of a colloidal suspension of magnetic particles, usually about 10 nanometers in size. In order

for the solution to behave in a desirable fashion, a surfactant, which keeps the magnetic particles

from sticking together, is added to solution. In the absence of a magnet field, the fluid is free to flow

and move as a typical liquid. When a magnet field is applied to the ferrofluid, the magnetic material

responds to the field lines and creates unique shapes. These shapes will allow the exhibit to show the

principles of magnetism and keep the learning interactive and entertaining.

Ferrofluids were developed in the 1960s as part of a NASA movement to address the requirements

of moving liquid fuel in a gravity-free outer space environment. Several years of research and

development led to a greater understanding of Ferrofluid properties until, in 1971, the first

commercial use of ferrofluid was introduced. Ferrofluidics Corporation announced the

development of a 100% leak-free, no-wear vacuum rotary seal for use in the manufacture ofsemiconductor wafers and other vacuum processing applications1. Since then, two major producers

of ferrofluid have combined to create the leading provider of ferrofluid, FerroTec . Today,

ferrofluidic technology is used in the manufacture of hundreds of high-tech products, including:

Loudspeakers and automotive speakers Leak-free sealing system for computer disk drives Viscous dampers Semiconductor crystals Medical devices, including for cancer detection. Seals for military use, hydrocarbon processing, nuclear and other hazardous environments. DVD optical pickup actuators Bearings, sensors, switches

Applications for ferrofluid are based on three unique properties:

Ferrofluid is drawn to the location where the applied magnetic field is strongest, and willstay in place until the magnetic field is moved or removed.

Ferrofluid absorbs electromagnetic energy at convenient frequencies and reacts by heatingup.

The physical properties (such as viscosity) of ferrofluid change in the presence of amagnetic field.

Because ferrofluid is drawn to magnetic fields, ferrofluid can be manipulated by magnetic stimulus.

Ferrofluid can be suspended in different kinds of carrier fluids, including water and oil, depending

on the processing of the surfactant.
http://en.wikipedia.org/wiki/Cancerhttp://en.wikipedia.org/wiki/Cancer


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Ferrofluid Properties

The particles in ferrofluid are a type of iron oxide called magnetite (Fe3O4) that are typically about

10 nm in diameter. For comparison, this is about ten-thousand times smaller than the diameter of a

human hair. A size of about 10 nanometers ensures that there is only one magnetic domain per

particle. This means that each particle has a preferred orientation in the presence of a magnetic field.

When there is no magnetic field present, the magnetite particles are oriented randomly in solution,

leaving no net magnetization. Ferrofluid reacts to magnetic fields by changing orientation of the

particles. When a magnetic field is brought into close proximity with ferrofluid, the particles rotate

to orient the single magnetic domain to align with the magnetic field. When the induced magnetic

field is removed from proximity with the ferrofluid, the fluid does not retain any magnetism. The

particles disperse and return to a random orientation, behaving once again as a liquid.

Ferrofluid produces spikes in the presence of a strong magnetic field. The spikes align

themselves to the areas of highest magnetic strength. The shapes produced by ferrofluid are

correlated with the magnetic field strength and help us to visualize the invisible magnetic field lines.

The spikes are tallest where the field is the strongest.

Ferrofluid exhibits some interesting behavior when a magnetic field is induced onto an unusually

shaped piece of steel. The shape of the steel will determine where the magnetic field is strongest. For

example, if a magnetic field in induced onto a steel bolt, the magnetic field will be strongest on the

end of the threads. This causes ferrofluid to climb up the threads, seemingly defying gravity.

Educational Background

Science, engineering, and technology are a part of every aspect of todays world. Scienceencompasses nearly every aspect of daily life, and it is important for children to be sufficientlyprepared. The National Academy of Engineering released a report in July, 2011, stating the need forscience and technology emphasis in schools. The academy developed a new framework that wouldprovide a unified approach to teaching science in public schools2. The Science Content Standardsfor California Public Schools was developed to standardize teaching objectives in school systems. Inparticular, the Science Content Standards reflect the importance of science and the balance betweenthe body of knowledge and themethod of scientific inquiry3. Standards include grade -specific

content for the kindergarten through the eighth grade. The standards focus highly on science,technology, engineering, and mathematics (STEM). For this exhibit, the intended age range is 6-10.For this age range the STEM requirements include a broad section on Electricity and Magnetism.The standards are as follows:

a. Students know how to design and build simple series and parallelcircuits by using components such as wires, batteries, and bulbs.

b. Students know how to build a simple compass and use it to detectmagnetic effects, including Earths magnetic field.


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c. Students know electric currents produce magnetic fields and knowhow to build a simple electromagnet.

d. Students know the role of electromagnets in the construction ofelectric motors, electric generators, and simple devices, such asdoorbells and earphones.

e.

Students know electrically charged objects attract or repel each other.f. Students know that magnets have two poles (north and south) andthat like poles repel each other while unlike poles attract each other.

g. Students know electrical energy can be converted to heat, light, andmotion4.

The California Science Standards state whatis to be taught, not howit should be taught.Thus,

multiple methods of teaching are required to educate children. Both in-class and hand on

opportunities are vital to the education of STEM requirements. The goal of the museum exhibit is

to provide an educational opportunity to local schools to teach the STEM objectives through an

interactive exhibit.

Objectives

Our goal is to design, build, and test an educational museum exhibit for the San Luis ObispoChildrens Museum given specified requirements from the museum exhibits committee. Aninteractive display will be designed so that children can take a hands-on approach to learning andhaving fun. Our goal is to have at least two tables, each with 1-2 displays. Each table will be focusedon educational objectives and focus on interactive play. The museum currently has their own set ofguidelines for Exhibit Production which focuses on the developmental abilities of the children, who

will be the exhibit users, and best practices in the exhibit design. These best practices have beenestablished by the museum under a design criteria checklist. Some important aspects of the criteriainclude the durability, safeness, appeal, and repeatability of the exhibit. The expected deliverablesaccording to the guidelines for exhibit production should include all the equipment needed to runthe exhibit, user manuals, a hands-on tutorial of the exhibit, and any other pertinent documentation.From the criteria checklist, provided by the Childrens Museum, several objectives were considered:

Aesthetically pleasingThe exhibit shall be appealing to children and adults of all ages. Visitors are first drawn to an exhibitbased on appeal, and so it is important that the exhibit is clean and aesthetically pleasing. Theexhibit shall be made of the same wood paneling as the rest of the museum. The exhibit shall have a

scratch-resistant surface, and be well-constructed. Cost is directly proportional to aesthetics.

Magnet StrengthThe exhibit magnets shall not attract to the table from more than 1 foot away. This is due to safetyreasons. Children should not be subject to strong magnetic attractions when not expecting it. Inaddition, the magnets should not be strong enough to damage anything in visitors pockets (i.e. cellphone, credit card).


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AccessibilityThe exhibit shall allow approximately three children to explore at a single time. This specificationallows for multiple entry points, leading to more interaction, collaboration, and accessibility.Children in wheelchairs have the opportunity to access the exhibit as well, per ADA requirements.Space considerations may limit the accessibility.

Number of MagnetsThe exhibit shall have at a minimum of six magnets available for the children. This is because with aminimum of three children playing at once, there should be at least two magnets available for eachchild.

Size of MagnetsMagnets shall be no smaller than 4X.25X1 inch. This is to reduce choking hazards.

Life of FerrofluidThe ferrofluid shall have a shelf life of not less than three years. This is based on discussion withmaterial engineers at Ferrotec, the leading distributors of ferrofluid. The shelf life determines how

often the museum staff has to replace the fluid, which increases future costs. Shelf life also dictatesthe sustainability and durability of the exhibit.

Self-ContainedThe ferrofluid shall be self-contained and not exposed to any contaminants. This will increase theshelf life of the fluid, as well has the fluidity and magnetic qualities. It is important that the fluid isas clean as possible so that it does not stain surfaces or leave gritty residue.

Exhibit SizeThe exhibit shall be no bigger in overall size than 5X7 feet. The museum has a limited amount offloor space, and the exhibit cannot exceed these dimensions. However, he larger the exhibit, the

more accessible it will be.

Material PropertiesThe exhibit material shall not scratch, bend, deform, rust, or splinter. This is for many reasons.First, the exhibit must be safe to touch on all corners, edges, and surfaces. In addition, the exhibitmust be durable if it is treated in a manner unplanned for. It must withstand a childrens weight ifhe/she were to climb on top of the table.

Safety

Safety is the most important part of the exhibit. All pinch points will be eliminated, sharp edges will

be rounded, electrical systems will be contained, and all interactions between the children and the

ferrofluid will be isolated. Safety will be considered in all aspects of the design.

Maintenance

The exhibit shall be easily maintained. Keeping the museum employees happy is a key to the

exhibits success and longevity at the museum. To accomplish this feat a maintenance manual along

with a spare parts list will be included so that, in the event that something does break, the exhibit

can be repaired in a timely manner.


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Learning Objectives

The exhibit shall provide key learning objectives for educational purposes. Besides being interactive,

the goal of the exhibit is to teach the difficult concept of magnetism. In order to achieve this goal,

signage will be employed, inquiry based learning objectives will be formulated, and challenges will be

provided to help aid in learning specific concepts.

ADA Standards

The exhibit shall comply with ADA standards. The ideal exhibit will not limit users with disabilities.

The design will allow for people with disabilities, along with those without, accessing all parts of the

exhibit with no limitations8. This includes but is not limited to the following: table height, table

width, reachability, viewing window location.

Multiple Interactions

The exhibit shall allow for multiple interactions. Multiple ways to interact with the exhibit is

important in keeping the experience unique and engaging. A target of three different methods of

interaction is feasible due to the many uses and applications of ferrofluid.

Budget

The exhibit shall cost no more than $1000.00. Keeping the cost as low as possible will be an effort

that is at the top of every decision. It will not, however, affect the quality of the exhibits appearance,

hands-on interaction, durability, safety, or any other aspect of the exhibits worth as an interactive

learning tool.

Weight

In an attempt to keep the exhibit mobile, it will weight no more 200 pounds when complete. This

target will not limit the exhibit in its ability to teach or function in any way. A target of 200 pounds

was identified by assuming that the max load of a table is about 800 pounds, and then using a safety

factor of 4.

Wires and Cables

The wires and cable, if any are needed, will be hidden from view and inaccessible from museum

viewers and yet be accessible if the need would arise during maintenance. In keeping the electrical

system hidden, the exhibit will retain a safe interaction between museum viewers and the exhibit

itself. With that said, we do not expect to have an electrical system unless absolutely necessary.


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Table 1. Specification table, per the criteria list provided by SLO Children's Museum

Spec # Parameter Description Target Risk

1 matches current wood paneling yes1 L2 magnetic attraction limit 1 ft L3 child capacity 3 M

4 number of magnets 6 m5 magnet size 4 x .25 x 1 in L6 fluid shelf life 3 years H7 self-contained with no contaminants yes2 H8 exhibit size 5 x 7 ft. M9 deterioration yes3 H10 safety features 0 H11 maintenance plan yes4 M12 educational information yes5 M13 disability accessibility yes6 H14 station points 3 L

15 budget $600 H16 weights 200 lbs H17 wires and cables yes7 H

1Uses museums dedicated cabinet maker if wood is to be used2Access holes may be cut for maintenance3Testing needs to be done during material selection process4 Development needs to occur after final design is accepted5To be determined by child survey and teaching analysis6 Compliance to be determined after design and exhibit placement are determined7 power needs/requirements require further development to determine need of electricityThe above specifications are further quantified in the Quality Function Deployment chart, Appendix.

Based on the QFD, our most important engineering specifications are structured around the safetyand reliability of the design. With these values, the specification table risk level was assessed andlabeled. This correlation is important in the progression of the project as a means of concentratingwhere are focus should be geared.

Method of Approach

In designing the Liquid Magnets Exhibit, a standard method will be followed. The first steps in the

process relate to working efficiently as a team towards a common goal. Forming, storming, andnorming lay a foundation to build upon. During this stage there is a substantial amount of time

dedicated to learning each others strengths, researching the technologies related to ferrofluids,

establishing and quantifying engineering goals, and making sure that all of these will meet the

Museums requirements.


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Once a solid foundation is set with a solid understanding of requirements and goals, concepts can be

created. Concept generation includes sketches and diagrams, simple analysis, and proof-of-concept-

models. Feasible concepts are then developed further with dimensions, material sheets and actual

costs. Currently, the exhibit is in the concept generation stage with approximate costs, materials, and

sizes. Once the museum approves the rough idea, they will be finely tuned and sent back to the

museum for a last approval before building.

All feasible designs must be presented and approved by the Museum Committee before moving

forward with a final design. Once a final design is chosen materials will be ordered, a new schedule

will be created, designs will be reevaluated and refined to meet any last-minute requests and testing

and assembly will begin. During assembly, small changes are made to simplify the exhibit or to

improve the exhibit as we see fit. Throughout the entire process, continual research and concept

review will continue so that the needs of the Childrens Museum are exceeded.

Current Progress

Testing

We located a bottle of ferrofluid, and were able to experiment the properties. We used the

ferrofluid, a small plastic container, and a series of bolts and nuts.

The goal of the test was to see how ferrofluid interacts with a magnetized bolt and nut

configuration. In addition, we wanted to test the feasibility of making our own ferrofluid display, in

addition to buying a premade bottle. The following figure shows the setup:

Figure 1. Testing on ferrofluid exposed to the environment.


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From the experiment, the following conclusions were made:

1. Ferrofluid stains skin, wood, plastic, and other organic materials. In our display, the fluidmust be either suspended in a suspension fluid, or in a plastic dish that does not allow thefluid to splash to the display sides.

2. Ferrofluid does not easily climb a bolt without the presence of an electromagnet. Therefore,in our display we must either have a way to invert the bolt, bring the fluid to the top of the

bolt, or have the magnet move towards the top of the bolt.

3. Ferrofluid maintains its magnetic properties indefinitely.4. Ferrofluid draws towards the outermost parts of the bolt/nut.5. It is feasible to make our own display, while also buying a sealed container for other displays.

Concept Designs

The conceptual designs have been chosen, and

sketches of each are shown below. Each design is

independent from the next, allowing the museum to

have input on which designs should be put into

fabrication. Depending on the available budget, one

or all of the concept designs will be built. Note: all

costs do not include base cost for the wood tables,

because more than one exhibit will be placed on

each table. The purpose of the cost estimations is to

directly compare the cost of each display. Our goal is

to have two tables, each with 1-2 displays. Both

tables will focus on educationalobjectives as well as

interactive play.

1. Cylinder DisplayThe cylinder display utilizes a 1 Liter sealed container of ferrofluid in suspension liquid. The

magnets are attached to rods located a short distance from the cylinder, preventing scratches

to the surface of the glass. Visitors can move the magnets up and down the rods, bringing

the ferrofluid up and down the side of the container.

Figure 2. Possible3D sign display explaining ferrofluid


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Figure 3. Cylinder display at Minnesota Science Museum

This display would be paired with a sign explaining the basic properties of ferrofluid and how the

paritcles interact when a magnet is introduced to the fluid.

Table 2.Approximate cost for cylinder display

Component Cost1 L Bottle with Fluid 150.00Various Magnets 15.00Metal rods 15.00Lazy Susan 15.00Table Material 50.00Signage 5.00Total 250


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2. Flat Plate DisplayThe flat plate display would be similar to the cylinder display in that it will be a completely sealed

container of ferrofluid in a suspension liquid. However, now the fluid is between two flat plates,

allowing the visitor to manipulate the ferrofluid from both the top and bottom of the pane. This

would allow the visitor to explore more possibilities and shapes.

Figure 4. Plate used in sealing the ferrofluid. Approximate outer dimensions are 13X16X1 inches

Figure 5.Conceptual design for the flat plate display. The flat plate display has magnets attached to metal rods, similar to the

men on a foosball table. In addition, magnets tethered to cables (not shown) allow visitors to manipulate the ferrofluid from

both sides of the plate. A sheet of plexiglass on the upper surface protects the glass plate from being damaged.


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Table 3.Approximate cost for flat plate display

Component Cost

Flat Plate with sealed fluid 150.00Plexi Glass 20.00Aluminum mounting 20.00

Table Material 50.00Magnets 15.00Cables 10.00Signage 5.00Total 270.00

Conceptual design drawings, below, portray an approximate layout of the flat plate display. Kids

would have access to magnets underneath the table via foosball-type rods. The rods could move in

and out, moving the underneath magnets. In addition, magnets attached to cables on the top of the

display allow kids to move the ferrofluid from the top.

Figure 6. Possible table layout for the cylinder and flat plate displays. The cylinder display has magnets attached to rods,

preventing scratches on the glass surface. The shape of the table may be changed to accommodate multiple points of entry

and extra signage.


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3. Iron Filings Display: Educational FocusThe iron filings display would be a simple display, allowing the educational objectives to be shown

clearly. With only iron filings, the magnetic field is more easily seen. In addition, children have

more experience with sand than liquid, and are more inclined to make educational connections with

the iron filings.

a. The first option would be to have a box with a thin layer of iron filings mixed with sand.The filings are mixed with sand so that the magnetic field is weaker, and will disappear

quicker when the magnet is taken away from the box.

Figure 7. Sample of the effects of a magnet on a thin layer of iron filings

Table 4.Approximate cost for iron filing display, option a.

Component Cost

Iron Filings 0.00Plexi glass 15.00

Wood 10.00Sand 0.00

Magnet 10.00Signage 5.00Total 35.00

b. The second option would be a 3D display of a magnetic field, shown with iron filings alone.The display is two thin sheets of acrylic plastic, hinged so that kids could open and close the

two plates. The advantage of this display is ease of maintenance, and visibility.


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Figure 8.Iron filing display in 3D form. Exhibit would be more visual than interactive.

Table 5.Approximate cost for iron filing display, option b.

Component Cost

Pre-made display 35.00Signage 5.00Total 40.00

These displays would be paired with a sign explaining the basic properties of magnetic fields and the

relationship between particles.

4. Magnetic Viewing Film DisplayFinally, the magnetic viewing film provides an inexpensive yet fun way to explain magnetic

fields. This exhibit would be paired with the iron filing display. The magnetic film shows a

magnetic field via a colorful sheet.


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Table 6. Approximate cost for magnetic viewing film display

Component Cost

Magnetic viewing film 30.00Signage 5.00Total 35.00

Figure 9.Possible table layout for the magnetic viewing display and iron filings display. There are four magnetic viewing

stations, each with a different shaped magnet tethered to the table. The cylinder represents the iron filings display, and will

be paired with an educational sign explaining basic magnetic field properties.

Distributer Contact

From speaking with FeroTec, the nations lead distributer of commercial ferrofluid, a display contact

was found, named Nick Nada, creator of CZferro products. Nick creates and designs museum

displays using ferrofluid. He specializes in the suspension fluid that supports and protects the

ferrofluid from the environment. In addition, the suspension liquid prevents staining on the sides of

the glass containers.

The suspension fluid is available in two varieties:

Gen3 Suspension Fluid Properties

Non-flammable85% clearFerrofluid can be magnetized in one spot, with zero movement, for hours at a time and not

stainMax order 2,000ML @ $0.05 per/mlStand-alone suspension liquid


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Gen4 Suspension Fluid Properties

Slightly flammable95% clearSharper and more isolated spikes

Max order 15,000ML @ $0.05Requires mixing at a 1:1 ratio ( meaning for every liter of gen4, one can produce 2 liters of

completed solution)Not a stand-alone suspension liquid

We decided to focus on the Gen3 suspension fluid, because it is entirely non-flammable. All

containers will be made of glass, and will be completely sealed upon purchase.


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Management Plan

The success of the project depends on the management and responsibility of the team. Each team

member is required to remain committed to the project goals and timeline. Each team member is

expected to participate in all team activities, including but not limited to the following: team

meetings, individual work, meetings with the Childrens Museum and exhibits committee, and classattendance. In particular, each team member will be the primarily responsible for individual tasks.

For each design process requirement, the person identified as the primary manager is responsible for

making sure that the team completes the pertinent task on time. The following table describes in

greater detail the management plan.

Primary ManagerJared August Richard Gomez Kathryn Hahn Kevin Wilkins

Team Leader X

Primary Contact XMATE research XInformationgathering

X

Documentationof projectprogress

X

QFD qualitycontrol

X

Safety oversee XManufacturing

Considerations

X

Prototypefabrication

X

MaterialOrdering

X

Material Storage XTesting Plans XFinalFabrication

X

Documentation XUser Manual X


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Proposed Timeline

Table 7. Detailed information on timeline, graphically displayed in the Gantt chart, Appendix

Task Mode Task Name Duration Start Finish Predecessors

ManuallyScheduled

Group Bonding Exercise 1 day Mon 9/26/11 Mon 9/26/11

ManuallyScheduled

Letter of introduction tosponsor

1 day Tue 9/27/11 Tue 9/27/11

ManuallyScheduled Team Contract 1 day Tue 10/18/11 Tue 10/18/11

ManuallyScheduled

Meet with Sponsor 1 day Tue 10/4/11 Tue 10/4/11

ManuallyScheduled

Obtain requirements 1 day Tue 10/4/11 Tue 10/4/11

ManuallyScheduled

Obtain specifications 1 day Tue 10/4/11 Tue 10/4/11

ManuallyScheduled

Background research 12 days Wed 10/5/11 Thu 10/20/11 5,6

ManuallyScheduled

Ideation process 12 days Wed 10/5/11 Thu 10/20/11 5,6

ManuallyScheduled

Meet with ExhibitCommittee

1 day Thu 10/20/11 Thu 10/20/11 8

ManuallyScheduled

refine requirements 1 day Thu 10/20/11 Thu 10/20/11

ManuallyScheduled

refine specifications 1 day Thu 10/20/11 Thu 10/20/11

ManuallyScheduled

solidify project direction 10 days Fri 10/21/11 Thu 11/3/11 9

ManuallyScheduled

Ideation process, continued 31 days Fri 11/4/11 Fri 12/16/11 9

Manually

Scheduled

Review Project proposal

with committee

1 day Thu 11/3/11 Thu 11/3/11

ManuallyScheduled

Sponsor approvesengineeringspecifications/proposal

1 day Thu 11/3/11 Thu 11/3/11

ManuallyScheduled

Brainstorm conceptualdesigns

21 days Thu 11/3/11 Thu 12/1/11

ManuallyScheduled

Consider a 1L bottledisplay

Conceptual Design

December 2011

Prototype Testing

January 2012

Final Design

March 2012

Hardware Review

April/May 2012

Design Expo

May 2012


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ManuallyScheduled

Consider a shallow dishdisplay

ManuallyScheduled

Consider a magneticparticle display

ManuallyScheduled

Select final designs 1 day Thu 12/1/11 Thu 12/1/11

ManuallyScheduled

Further develop finaldesign

ManuallyScheduled

Develop specific exhibitcomponents (dimensions,cost, layout)

ManuallyScheduled

Complete drawings

ManuallyScheduled

Complete BOM Thu 11/10/11

ManuallyScheduled

Submit Concept report 1 day Fri 12/9/11 Fri 12/9/11

ManuallyScheduled

Exhibit committee approvefinal design

ManuallyScheduled

Find supplier/distributer 5 days Thu 12/1/11 Wed 12/7/11

ManuallyScheduled

Order materials 26 days Thu 12/1/11 Thu 1/5/12 27

AutoScheduled

Receive and Store materials 1 day Thu 12/1/11 Thu 12/1/11

ManuallyScheduled

Contact carpenter for tablefabrication

17 days Tue 1/10/12 Wed 2/1/12

ManuallyScheduled

Test plan review 8 days Thu 11/10/11 Mon 11/21/11 29

ManuallyScheduled

Testing with children

ManuallyScheduled

Testing with differentmagnets

ManuallyScheduled

Build displays 47 days Tue 2/28/12 Wed 5/2/12 31

ManuallyScheduled

Further research onmuseum displays

ManuallyScheduled

Prepare posters, etc

Manually

Scheduled Further improve displayManuallyScheduled

Final Design Report 20 days Tue 5/1/12 Mon 5/28/12 34

ManuallyScheduled

Maintenance manual

ManuallyScheduled

Safety in Design Review

Manually Troubleshooting manual


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Scheduled

ManuallyScheduled

Design Expo 23 days Tue 5/29/12 Thu 6/28/12 38

ManuallyScheduled

Museum implementation 9 days Fri 6/29/12 Wed 7/11/12 42

A gantt chart is located in the Appendix.

Conclusions

The Ferrofluid exhibit will include two tables, each with two displays. Both tables will focus on

interactive play, while enforcing educational objectives. In preparation for next quarter, our focus

will be on finalizing designs. Next quarter, the goal is to build at least two exhibits, and test them at

a local school to troubleshoot the displays.

We request the following from the Museum Exhibit Committee:

1. Request a response regarding this document and the included conceptualdesigns. Material ordering and building will begin in January.

2. Request an estimate budget to begin finalizing designs. Once a budget isestablished, the team can prioritize design considerations. All of the

proposed designs have been greatly simplified to reduce cost. A higher

budget would allow more versatility and interaction to each display.


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References

1. "FerroTec History." Ferrotec.com. Web. 27 Oct. 2011.2. Quinn, Helen R., comp.A Framework for K-12 Science Standards. Issue brief. National

Academy of Sciences, July 2011. Print.

3.

National Academy of Sciences, National Science Education Standards. Washington, D.C.:National Academy of Sciences, 1995.4. United States. California State Board of Education. Science Content Standards for California Public

Schools. Ed. Sheila Bruton, Faye Ong, and Greg Geeting. Comp. CDE Press. Sacramento:

California Department of Education, 2000. 9 June 2011. Web. 1 Nov. 2011.

5. "Ferrofluid: Magnetic Liquid Technology." Ferrotec. Web. 01 Nov. 2011..

6. "HowStuffWorks "How Magnets Work"" HowStuffWorks "Science"Web. 01 Nov. 2011..

7. "The Exploration of the Earth's Magnetosphere""NASA's Polar, Wind and Geotail Missions.Web. 01 Nov. 2011. .

8. United States. US Department of Justice. Civil Rights Division, Disability RightSection.Maintaining Accessibility in Museums. ADA, April 2009. Print.

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