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MECHANISMS EXAMINATION QUESTION

V. Ryan © 2004 - 2009

 

2a. A design agency has designed a cartoon character to encourage pupils / students to wear goggles when using machines. The agency has developed a character called ĎSafe EdĒ. The diagram shown below shows the cartoons head. The design company intends to design a device that moves the Edís head up and down.
The basic layout is shown below. The mechanism is contained within a box (shown as a dotted line). When a handle is pressed Edís head moves upwards and then returns to its original position. Complete the mechanism and explain how it works.

   

EXPLANATION:  
 
 
 
 

 

   
2b.What material could be used to make the mechanism.
 
   
2c. Explain your choice of material.
 
 
 
 
 
   

 

   

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