Skyway Avenue

Friday, December 28, 2007, 11:19 PM

This is the example of the cam toy...see how it moves and my dt project will use the similar machine to make ba...you can open up and c the picture more clearly and the turning effect:)

Below is a mechanical toy based on a CAM mechanism. As the handle on the eccentric cam is turned the top part of the egg shell lifts to reveal a face. The basic construction of the toy is also shown below. The ‘flat’ follower moves upwards and downwards as the cam rotates. Although the design is simple it must be made accurately or the mechanism will stick.

A ‘drop cam’ has been used on the toy below. The movement is different compared to the smooth motion of the eccentric cam. As the cam rotates the top half of the shell lifts at a relatively constant speed and then drops down suddenly.

The ‘pear shaped’ cam also has a different motion. The pear shaped cam lifts up the top part of the shell quite quickly and then it drops down just as quickly. However, for half a revolution the shell does not move at all.

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YO, I am SHUJUAN,currently studying in HYSS, and i am a student designer;D MY big big day is 11 of JULY and i will LOVE you much more if you buy something for me:D I am sec2 this year and i studied in a 'zoo' called 2e5.I loves to make friends and tag me,if you dont understand anything and i will be pleased to reply you:D And,do smile!❤:D

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