1. Sonic See-Saw
Triple s comin at you
Green Team A

2. Potential Market 25 million kids age 5-11 in the US 84,000 schools
Thousands of parks
Studies show an increased desire for interactive playground equipment
we've got thousands of customers, and they're looking for more interactive (and specifically musical) equipment.
Looking to capture 1% of the market w/ profit of ~1000$ per unit
From an article on child development:
"An essential element of learning in the early childhood years is the opportunity to affect the environment...In addition, ...children learn a great deal by manipulating the materials and equipment in their world. Nearly all indoor play materials-puzzles, blocks, art materials, musical instruments, and dramatic play props-can be manipulated by children. On the playground, however, this diversity is rare. Children deserve the
same diversity and richness in their outdoor play environment as they
have indoors."

3. Price Comparison Public Consumers Private Consumers
Steel Frame: $500-$1500
Spring Type: $1000-$2500
Wood Plank: $500-$1000
Private Consumers
Current Plastic Models: $50 - $200
I’ll be breaking down the costs at each place below. w/ URLs
For the Steel Frame: This your typical seesaw with a steel frame.
NOTE: for all the steel ones, it all looks like the same model, I kept trying to find different ones, but this was all I could find, I’ll look for some more, and if I find it, then I’ll send it to you. The first three are the same, the last one in the steel section are different.
BYO playground: $567 <
Outside Toys: $312 <
Depends on the number of seats:$300-$1395 <
Various: <
Pipes: $752 <
Little People: $462 <
Wooden:
Wood Board: $608 <
another, but british: $300 w/ conversion: <
various:<
Spring Type: It’s a seesaw w/ a huge spring in the middle.
2 seater:$ <
4 seater: $1, <
Varoius: no prices <
Plastic Type: it’s a plastic normal type one, seems more for homes extendable: $199 < extendable: $ <
spinning one: $59.95 <
spinning: $69.98 <
another spinner: $74.99 <
self, riding one, kinda cheap: $59.95 <
plain: $150 <

4. Market – Customer/User Acceptance
Parents/Teachers
Adherence to Consumer Product Safety Commission guidelines
Aesthetics
Child-friendly appearance
Visually attractive
Pleasant sound production
Children
Minimal intimidation
Enjoyable, variable experience
Parents/Teachers
Adherence to CPSC guidelines (will be covered in safety)
Aesthetics
child-friendly appearance/visually attractive
Use smooth and curved surfaces
Use bright and attractive colors
Make control interface simple and attractive
pleasant sound production
1.Large variety of sounds
2.Notes produced on key
3.Non-offensive volume
Children
Minimal intimidation
Using existing playground equipment design as a base
Create an intuitive control system
Enjoyable experience
Proven existing seesaw design is fun
Introduction of interactive music element
Variable experience
Control system to vary sound production
Each ride will be different
Something new to look at and explore the function of

5. Maintenance and Durability
Wear and Tear
Weather conditions
Vandalism
Heavy use by children
Ten year maintenance free lifespan
Some of the biggest design considerations will be to account for maintenance and durability
Able to be used in florida up to maine and in california and in the desert.
Maintenance free or require very minimal yearly attention

6. Diagram of Air Flow for One Side of See-Saw
Here you can see how the air flows as a child rides down on the see-saw. The pump is pushed in by the downward motion, pushing air through the tube into the child’s control device. (click to advance) The control may be rotary, but it is shown here as linear for clarity. Depending on where the hole in the plate is, the air flows through any of several tubes into the corresponding pipe (click to advance) producing a tone. These three systems, the pump, control, and pipes, are our most critical modules, and we’ll talk more in depth about them in a bit.

7. Pumping Requirements Requirements for Small Organ
Pressure = 0.2 to 2.0 kPa
Air Flow Rate = 0.03 m3/s
Feasibility – Piston Pump
0.6 ft Ø
The air flow value for real organs is much higher than for our mock up that was mentioned in one of the first slides.
To test the feasability however, we want to see if we can pump enough air to meet the requirements a actual organ.
Assumptions:
45 lb 5 year old.
Going at 1 Hz
No losses in piston system
With an efficiency of 30% we will still have adequate pressure to play music
Air Transfer Challenges
Losses from leaks and head loss
Valves
O-rings
1 ft stroke
Pressure = 6.5 kPa
Air Flow = 0.03 m3/s

8. Control System Grip Shift Handle Bar 4 Notes Per Side
Air From Pump
Non locking, continous rotation for better durability and ease of use
Air to Organ Pipe A
Grip Shift Handle Bar
4 Notes Per Side
Plastic selector allows for one note to be played at a time

9. Mock up Air flow requirements
Flue: 3mm tall, 30mm wide
One pipe needs air at:
Between 0.2 and 2 kPa
Max. 200 cm3 / s flow rate
Easily provided by a fraction of child’s weight
Flue – air exits here
For mock up design we require:
To be sure that children using our see-saw would provide enough power to make a good sound, we first assumed that each pipe has a flue no larger than 3mm by 30 mm, though most will be much smaller. Our research indicates that each pipe will then require between 0.2 and 2 kPa driving pressure, and that means that the maximum flow rate required will be no more than 200 cm3/s. A child’s weight is enough to provide this pressure and flow rate for several pipes, and our design limits each child to 2 simultaneous notes, so there is no problem here. The one potential problem is that friction losses in the air tubes will limit the airflow rate, and this will be avoided by simply using tubing of sufficiently large diameter.

10. Plan
Patent Review
Seesaws
Pipe organs
Research Consumer Product Safety Commission Requirements
Consult with educators, child psychologists
Local schools
Patent research
Seesaw US Patent Subclass 472 / 106
Pipe organs
Consult with teachers, child psychologists
Local schools
Research Consumer Product Safety Commission Requirements

11. Questions?