Consider the mechanism shown below made up of moveable links AB, BD and slider D. Link AB is rotating CCW at a constant rate. Point C is the center of rotation for BD, where point C is at the ...

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For example, a toolbox with drawers opens up effectively using parallel motion linkages. Bell crank linkages change the direction of force through 90°. The amount of output force can be changed ...

The cam is the part of the mechanism that rotates. A crank can be used to turn the cam. The outer edge of the cam is in contact with a follower. As the cam rotates, it pushes the follower.