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WIND POWERED GEARS EXERCISE
V. Ryan 2002
 
This is a practical exercise based on wind power, gears and linkages. The nose of the cat is part of a propeller which rotates when the wind blows (front view). As it rotates gears at the back of the model cat also rotate and a wire linkage moves the tail up and down.
The animation (back view) below shows the arrangement of gears at the back of the cat needed to provide the right movement. However, this design has never been made.

1. Make a card model to test if the movement will work.

2. Make alterations where necessary.

3. Make a prototype from resistant materials and test it outside.
 
FRONT VIEW
 
 
 
BACK VIEW
 
 
Design an alternative wind powered object. The device must include gears and perhaps other mechanisms
 
 
 
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