Engineering Drawing
This is a curve showing the displacement of the follower as ordinates on a base line that represents one revolution of the cam:

Cam cycle
Reciprocation chart
Displacement diagram
Follower

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Engineering Drawing
Three dimensional models are often used in the design process to ________.

Help the client understand the overall design concept
Determine the quantity of brick needed to build the house
Help the client select a color for their carpet
Provide the client with a model which they can use to impress their friends

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