2010

Table Of Contents
Designing and Calculating
Cams
In this tutorial you use the automated cam design and calculation functionality in AutoCAD
®
Mechanical to create a cam, perform calculations, and generate data for NC production.
Key Terms
DefinitionTerm
Rate of change in velocity.acceleration
Types of gears for obtaining unusual and irregular motions that
would be difficult to produce otherwise.
cam
Geometric shape of the cam.curve path
Diagram illustrating the lift or rotation of the follower for each de-
gree of rotation or translation of the cam plate.
motion diagram
Part of the motion diagram. Some sections are defined by design.
For example, the maximum lift of 15 mm is reached at an angle of
90 degrees.
motion section
Numerical Control. Used in manufacturing to represent the control
on machine tool motion through numeric data for 2 to 5 axis ma-
chining.
NC
Controls the precision of curves. A low value increases computing
time. Use a higher value for initial design.
resolution
18
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