Top Polyhedron Juno's Spinner |
Assembly and operation of the Juno's Spiner |
I explain how to assemble and operate Juno's Spinner using dodecahedron model. |
The parts of the Juno's Spiner are in the left.
There are 12 outer elements (clear), 20 inner elements and 60 sets of rotational joints. |
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Pile up the element of two sheets and join together by rotational joint.
A clear element should always be placed outside of model. |
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Assemble them in the state of being easy to hold elements. | |
Check whether an element moves smoothly.
A clear element is in front of a blue element. |
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Add an element in the same way. | |
This photograph shows combined four sheets of elements. Please direct your attention that four elements are forming one loop. | |
You may understand the principle of transformation by operating a small number of element.. | |
Always be conscious of making a loop with four sheets of elements. | |
Four elements are surrounding a circle. | |
If model is extended, it turns out easily which next should be connected. | |
If you move model little bit, it tends to become flat automatically. | |
Assemble model where it extended as much as possible. | |
Look for the place where one loop will be formed if one element is added. Then, assemble this part you found. | |
We had assembled half of the model. | |
Don't get the top and bottom of elements mixed up. | |
Almost finished. | |
Finished. | |
When you shrink Juno's Spinner, bounce it in your hands gently.
If you made mistake at top and bottom of elements, you wouldn't shrink it. |
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When you expand Juno's Spinner, hold opposite sides of outer elements. | |
Move your each hands away. | |
Twist your hands leave rotation of elements. | |
Left picture shows completely expanded Juno's Spinner.
You can expand Juno's Spinner make use of centrifugal force too. |
Top Polyhedron Juno's Spinner |