1. Flipper Fishy Fun EDSGN 100 - 018 | Group 7
Fig. 0. Flipper Fishy Fun Model
EDSGN | Group 7
By: Kaelan Freund, Nicole Moore, Michelle Mydlow, and Jackie Luong
Add slides?:
Regulating Bodies
Design Improvements

2. Table of contents Mission statement Design Specifications Stakeholders
Target Audience
Requirements, functionality, and constraints
Concept
Brainstorming
Analysis
selection
Prototype
Subsystem design
Materials
Calculations
Cost
Construction
Conclusion

3. Mission Statement Mission Statement
We took an opportunity to design, test,
and market a gadget that optimizes materials
and prices to allow aquatic activity enthusiasts
to navigate on calm bodies of water by means
of an independent bipedal motion.
Transition to words because people can’t do two things at once
OG MS:
Optimize materials and prices to design a gadget that allows a user to walk across the surface of the McCoy Natatorium pool.

4. Actual Target Audience
TARGET AUDIENCE PROPOSALS:
High Schoolers:
Fast - but not stable
walking speed- “nothing too krazay”
Fishing
Playing around
sports
Skill oriented - learned
Price: $100, $300, $500, $1000, $1500
Take away 75%
Lived on Sail Boats:
High control
Stay dry on salt water
Easily fixable - intuitive design
Recreational users:
Paddleboard
Surfing
Water bike
Kayaks
Both personal and public device
Children:
Safety - stability
Light enough for a kid to carry
Pretend to be a superhero
Racing
$30, depend on product
College Students:
Interest 85-90%
Boating
Learned skill type thing
Use with friends
Rent out
Outside activity
Novel activity
PaddleBoard sort of thing
Medium to big is definitely fine
Still relatively portable
Potential for high control/speed
Stakeholders
- Our design group
- EDSGN class
- Dr. Colledge
- Material distributors (Lowes, Home Hardware)
- Transporters
- Workshop supervisor in Hammond Building
- Potential customers
- Users of the prototype
- Angel investors
- Trash men
- Landfill owners
- Safety/ environmental regulators
- Life guards
- Owners of bodies of waters in which we use
Actual Target Audience
Recreational users:
Requirements:
Paddleboard
Surfing
Water bike
Kayaks
Both personal and public device
Be able to hold up to
250lbs on water
Be height and weight
adjustable
Be able to fit any size foot
comfortably
Cross 25m on water
without falling over
Functionality:
Easily retrieved once felled
Be able to move at at least
walking speed
Directionally controllable
Simple construction
Hands free usability
Constraints:
Under 75lbs
Start with something like “First thing’s first, we need to make sure we know who our stakeholders are so we know that our product will be accepted into the targeted market- we defined our market and noted all stakeholders”
Table 1. Stakeholders

5. We interpreted the customer needs and quantified the project specifications to create a clear problem space
Customer Wants:
Specifications:
Light weight
Weight must not exceed 50 lbs
The device is able to be moved to the edge of the pool from inside the water while not in use
Compact/ Portable
Able to breakdown into a maxim of 5 pieces and stored in a 4ftx4ftx4ft space without the use of tools
Fast
Be able to travel a minimum of 1.5m/s
Stable
Have a center of mass within 1.5ft-2.5ft away from the edge
Ability to adjust to different sizes and weights of users
Masterable
A user must be able to feel 25% more comfortable on the device over the course of 5 one hour sessions on the device based on a survey of 20 users
Must be able to be used without one’s hands 50% of the time
Control
A user is able to turn in a circle on the water in a 2m radius
Affordable
Wholesale price is less than $150 with a profit of $70
Safe
Less than 5% injury (injury defined by broken skin, broken bone, and/or strained muscle) when used for more than 3 total hours
Table 2. Specifications

6. Role Assignments: Finance: Nicole Materials: Michelle Building:
Base construction:
Finishing touches:
Motor function construction:
CAD Design:
Design Sketch:
Nicole
Michelle
Jackie and Kaelan Michelle and Nicole
Jackie and Kaelan
Kaelan
Jackie
Add:
Pictures of group members.
Marketing?
More roles in general
Table 3. Role Assignments

7. Concept Generation/Brainstorming
Fig. 1. Walker
Fig. 2. Tsunami Circle
Fig. 4. Flipper Fishy Fun
Fig. 3. Sea Sandals
Fig. 5. Elliptical

8. Fig AquaRunner
Fig. 6.3.
Fig. 6.2.
Fig. 6.4.

9. We used a Specs Comparison of Importance to determine which specs had the most weight on our design.
Table 4. Specification Comparison
Specs A B C D E F G H
row totals
% importance
Weight 1
1/4
1/2 5
1/3 2
10.083
8.59
compactability 4 3
17.833
15.20
speed 12
10.23
stability
1/5
1/8
3.475
2.96
masterability
15.5
13.21
control
17.33
14.77
affordability 8 25
21.31
safety
16.167
13.78
Total:
Intensity of Importance 7 9
2,4,6,8
Equally important
moderately more important
much more important
extremely important
top priority
intermediate values

10. Concept Comparison 6 is best Tsunami Circle Elliptical Walker
Flipper Fishy Fun
Aquarunner 90385
Sea Sandals
Criteria
weight
rating
weighted score
Weight
8.59 3
25.77 2
17.18 4
34.36 5
42.95 1 6
51.54
compactability
15.2
60.8
30.4
45.6 76
91.2
speed
10.23
40.92
20.46
30.69
stability
2.96
5.92
11.84
17.76
masterability
13.21
39.63
66.05
26.42
52.84
79.26
control
14.77
73.85
44.31
29.54
59.08
88.62
affordability
21.31
63.93
42.62
127.86
safety
13.78
41.34
82.68
55.12
27.56
68.9
total score 27
352.16 23
267.1 24
308.91 33
402.68 11
134.29 42
535.37
rank
continue y n
Table 5. Concept Comparison

11. Concept Decision Fig. 7. Flipper Fishy Fun Model Votes -->
3 is best
1 is worst
Final Contestants
What is good
what is bad
Jackie
Kaelan
Michelle
Nicole
Total
Tsunami Circle
Control
Stability 3 2 1 7
Flipper Fishy Fun
Weight, Compatibility - 10
Sea Sandals
everything but...
speed
Table 6. Concept Decision
Ask us about specific detailed reasoning after the presentation

12. Up Close Fig. 8. Flipper Fishy Fun Model
Fig Flipper Fishy Fun Drawing

13. Original Idea Functions- How it Should Work
The device should be able to float on its own.
There are shoes that roll on top of roller conveyors.
The shoes are connected by paracord to pulleys on the front and back of the device.
The pulleys are connected to the fins in the back.
The fins rotate in accordance with a walking motion.
The inverse motion of the fins propels the device and user forward.
Fig. 9. Flipper Fishy Fun Sketch
Consider splitting this into 2. Still need to include isometric drawings and different views. Functions will also require descriptions.
Can’t just read off the slide

14. Subsystem Analysis
User stands on device and straps feet into footholds place on rolling conveyors.
The rolling conveyors are made of two parts: the inner dowel core and the outer rolling tube. The inner dowel is anchored into the base in three support beams: left, center, and right. The outer tube freely rotates about the inner axis to reduce friction and assist walking motion.
Holding the beams in place are the perpendicular cross-beams beneath the rolling conveyors.
The base is a narrow rectangle that anchors all of the subsystems together and allows user stability.
The footholds roll back and forth on the pins individually to pull one of the two paddles left and right via a series of pulleys that lead from the foothold, to the paddle, back to the foothold
This way the cord pulls in both directions
The fins produce a propulsive force much like a bellows or a swimmer’s legs
Although each individual paddle creates a diagonal force either back and right or back and left, the right and left forces should be equal and cancel out, leaving just the backwards force to push the user forwards
Underneath the base are floatation devices at each corner. They are placed as far apart to have the most efficient use of water displacement to keep the device afloat, balanced, and stable
Fig. 10. Flipper Fishy Fun Model
Can’t just read off the slide
Fig. 11. Swimmer

15. We used calculations to determine what materials would be ideal in constructing a functional model.
For the body/frame as a replacement for wood: Carbon Fiber
High Tensile Strength
High Stiffness
High Temperature Change Resistance
Low Weight
Commonly used in Aerospace, Vehicles, Military, and Sports
Highly researched and benchmarked material that is safe for use
More expensive part of the device because it is the most critical to design stability, strength, and longevity
For the paddles at the rear: Fiberglass
Cheap
Reliable
Lightweight
Easily replaceable
Also heavily used in recreational activities
For the shoes: Balsa covered in Polyurethane with straps and plastic buckles
Soft wood that would be comfortable to wear
Covered in a safe, cheap foam for added padding and comfort
Average backpack straps and buckles
For the floatation: inflatable PVC buoys
Strong
Waterproof
Durable
Commonly used in bouncy castles and pool toys
For the rolling pins in the middle: White Oak center dowels with Nylon coverings
Oak is a cheap, readily available wood
High strength
Less dense than water
Nylon is a cheap plastic
Low friction, even without lubricant, but water would make it even more effective
Easy to work with to form into the desired shape
Wears slowly
For the cording: Paracord
High tensile strength
Lightweight
Heavily used in professional settings such as space-travel and military
For the rear rotating rods: Aluminum
Strong
Durable
Corrosion resistant
For the pulleys: Stainless Steel
Cheap, common material
Desired Materials Page

16. Due to financial and availability restraints, we had to use more practical materials for our prototype:
Table 7. Materials Comparison
Materials
Description
Modulus of Rupture (kg/sq.mm)
Density (g/cm^3)
Cypress (Southern Wood)
Doesn’t rot in water
7.44
0.482
Cedar (Northern White Wood)
Lightweight
4.56
0.315
Ash (White Wood)
Malleable and sturdy
11.01
0.638
Oak (White Wood)
High Shrinkage Values
10.68
0.710
Balsa (Tropical America Wood)
Lightweight and durable
19.6
Dogwood (Flowering Wood)
Smooth and durable
10.72
0.796
Rigid PVC Piping
Strong, heat resistant, susceptible to solvents and chlorinated hydrocarbons.
1.3–1.45
Calculations:
Is this slide necessary?
Table 8. Buoyancy Calculations
Figs Materials and Materials Charts

17. Cost Analysis Table. 9. Bill of Materials Spent Price Quantity Total
PVC Piping
$3.62 2
$7.24
Wooden Dowels
$3.75 9
$33.75
Paracord
$3.98 1
Zipties
$2.44
Linen shelving
$5.48
Duct Tape
$7.50
Insulation Foam
$10.98
$23.38
Total:
$83.77
Fig. 20. Cost Analysis

18. Prototype Faults The Real Deal F F F F Construction Restrictions
F = Total downward Force F w W
F = Buoyant (Upward) Force B F B F F B B
Fig. 22. Force Vector Chart
Construction Restrictions
Material Restrictions
Budget Restrictions
Workshop time availability
Tool ability
Transportation Restrictions
Testing restrictions
Fig. 21. Construction
Better materials
Better tools
Better shaping
Access to workshops as needed
No unnecessary weight
More precision with calculations
Ability to test and improve as needed
This slide still needs to be edited. CAD in right box, picture of product in left.
The real deal would include ideal materials, angles, and finishes.
Include materials used v. what we would’ve used

19. Summary and Conclusions
The design did not end up working for a few reasons:
The wood absorbed water and warped out of shape
The cording was very difficult to stay in place
Some fasteners came loose in the water, or couldn’t hold up to the required forces
We set out to design and prototype a device that would allow a user to walk on water. After surveying multiple different potential audiences, our final target audience were “aquatic activity enthusiasts.” More simply put, people who like to be around water and enjoying spending their free time at pools, beaches, or other bodies of water. After brainstorming several design possibilities, we decided on our final design through a series of mathematical charts and functionality surveys. We initially dubbed this design Flipper Fishy Fun, and started our journey through specific subsystem design and materials research and purchasing before starting our construction of the prototype. There were plenty of challenges throughout production which forced us to change a few key designs, such as the floatation system and the cording from footholds to paddles. These cumulated enough to force us to skip the initial testing stage and go right to the final testing stage.

20. Fig. 27. Gantt Chart

21. Sources Wikipedia. Wikimedia Foundation, n.d. Web. 11 Oct. 2016.
"Balsa." The Wood Database. N.p., n.d. Web. 11 Oct
"Carbon Fibers." Wikipedia. Wikimedia Foundation, n.d. Web. 11 Oct
"Dinghy Decisions." Cruising World. N.p., n.d. Web. 11 Oct
"Flexural Strength." Wikipedia. Wikimedia Foundation, n.d. Web. 11 Oct
"Flexural Strength Testing of Plastics." Flexural Strength Testing of Plastics. N.p., n.d. Web. 11 Oct
"FOAMULAR® 150 Rigid Foam Insulation." FOAMULAR® 150 Rigid Foam Insulation. N.p., n.d. Web. 11 Oct
Gerard, Katie. "Top 5 Materials for Plastic Bearings Used on Metal Surfaces." Top 5 Materials for Plastic Bearings Used on Metal Surfaces. N.p., n.d. Web. 11 Oct
@REI. "Kayak Paddles: How to Choose." - REI Expert Advice. N.p., n.d. Web. 11 Oct
"Light Alloys and Metals Information." Engineering360. N.p., n.d. Web. 11 Oct
Outlet, Alans Factory. "Building Materials - A Closer Look at Different Types of Wood." Building Materials - A Closer Look at Different Types of Wood. N.p., n.d. Web. 11 Oct
"PHYSICAL PROPERTIES OF COMMON WOODS." PHYSICAL PROPERTIES OF COMMON WOODS. N.p., n.d. Web. 11 Oct
"Polyvinyl Chloride." Wikipedia. Wikimedia Foundation, n.d. Web. 11 Oct \
"PVC." Strength -. N.p., n.d. Web. 11 Oct
"PVC." 's Physical Properties -. N.p., n.d. Web. 11 Oct
Paul. “Should You Be Using A Two Beat Kick?” Feel For The Water! Advice &Amp; Tips to Improve Your Swimming.: Jan. 1970,
"Unit Converter." Convert Megapascal [MPa] Kilogram-force/centimeter² [kgf/cm²] • Common S • Pressure, Stress, Young's Modulus • Compact Calculator. N.p., n.d. Web. 11 Oct

22. Questions? Open google’s question asking option.
Add a page addressing possible questions

23. Thank You!!!

24. Construction Figs. 21-26. Construction of Model
Include pictures of pieces prior to assembly- CAD parts
Figs Construction of Model