Background
Recently, we have learnt about reverse engineering and all the aspects that go behind it. These include visual analysis, functional analysis, structural analysis, then finally material properties. After we learnt these, we got a little wind up toy, and practiced these functions.
My Wind up Toy
My wind up toy is a bee like toy. When the toy is winded up, it moves forward, the wings flap, and the head moves from side to side.
Visual Analysis
Most of the toy is symmetric. The colors and shapes are mostly symmetric throughout the toy. The different sized ears give a nice contrast to the rest of the toy. The striped pattern on the bee body provides unity to the toy. The highly contrasting wheels helps to show how they move, and are different to the rest of the toy.
Functional Analysis
For this step, I used the different parts on the toy, and I took note of the outputs.
Inputs
|
Product Function
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Outputs
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Purpose of the Product
This product is intended for kids to be able to play with. They are able to play with it on almost every surface with grip.
1. Head piece, rotates left and right
2. Wings, flap up and down 3. Winder, rotates to allow the toy to move all its components 4. Wheels, rotate around, moving toy forward 5. Body This product probably operates by the person winding up the winder, then the toy uses that energy to move all its components |
Structural Analysis
For this step, I took apart the toy and took note of the parts
Part NO. |
Part name |
Quantity |
Dimen-sions |
Function |
Material |
Density |
Mass |
Texture |
Inter- actions |
1. |
Back Head |
1 |
1 in |
Hold head together |
Plastic |
1 g/cm |
5 grams |
Shiny Plastic |
Front Head and body |
2. |
Front Head |
1 |
1 in |
Hold head together |
Plastic |
1 g/cm |
5 grams |
Shiny Plastic |
Back Head and Body |
3. |
Face |
1 |
.5 in |
Give toy a face |
Plastic |
1 g/cm |
3 grams |
Shiny Plastic |
Front Head |
4. |
Wheels |
2 |
.25 in |
Make toy move forward |
Plastic |
1 g/cm |
2 grams |
Shiny Plastic |
With body and Winder Movement |
5. |
Wings |
2 |
.25 in |
Make it a bee |
Plastic |
1 g/cm |
2 grams |
Shiny Plastic |
Winder Movement |
6. |
Right Body |
1 |
1.25 in |
Hold toy together |
Plastic |
1 g/cm |
5 grams |
Shiny Plastic |
Left body, Wings |
7. |
Left Body |
1 |
1.25 in |
Hold toy together |
Plastic |
1 g/cm |
5 grams |
Shiny Plastic |
Right Body, Wings |
8. |
Wing Pusher |
2 |
0.25 in |
Make wings flap |
Plastic |
1 g/cm |
1 gram |
Shiny Plastic |
Body, Wings |
9. |
Wing Pusher Screw |
2 |
0.1 in |
Hold wing pusher in the body |
Plastic |
1 g/cm |
.5 grams |
Metallic |
Wing Pusher, Body |
10. |
Winder Module |
1 |
0.25 in |
Power the toy to move |
Plastic |
1 g/cm |
10 grams |
Shiny Plastic |
Wings, Body, Head |
11. |
Ears |
1 |
0.25 in |
Give toy ears |
Plastic |
1 g/cm |
1 gram |
Matte Plastic |
Head |
12. |
Tail Wheel |
1 |
0.1 in |
Hold toy body together |
Plastic |
1 g/cm |
.5 grams |
Shiny Plastic |
Body |
13. |
Screws |
4 |
.1 in |
Hold the toy together |
Plastic |
1 g/cm |
.5 grams |
Metallic |
Head, Body |
15. |
Movement |
1 |
0.25 in |
Make head and wings move |
Plastic |
1 g/cm |
1 gram |
Shiny Plastic |
Winder Movement Head, Wings |
Motion Analysis
The inside of my toy has many moving parts: the winder module, the movement, the wing pushers. These all work together to make the toy move.
How It Works
- You rotate the winder module, powering it. - This rotates the little white wheel and the metal cylinder - The little wheel rotates the movement and the metal cylinder rotates the wheels - The movement then hits the wing pushers on both sides and the spike on top of the movement hits the wheel. - This makes the head move back and forth, and the wings flap up and down |