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##### From CAM Design Handbook

Harold A. Rothbart, D. Eng.

Appendix A:BASIC CONTOURS
Appendix B:BASIC CAM CURVE FACTORS
Appendix C:POLYNOMIAL COEFFICIENTS
Appendix D:CAM COMPUTER SOFTWARE
Appendix E:CAD/CAM FOR A MEDICAL INSTRUMENT CAM MECHANISM
Appendix F:OPTIMAL CONTROL THEORY DERIVATION FOR TWO-POINT BOUNDARY VALUE PROBLEM
INDEX

Harold A. Rothbart is a noted consulting engineer and lecturer, and is the author of numerous books including McGraw-Hill s Mechanical Design Handbook. He is the former Dean of the College of Science and Engineering at Fairleigh Dickinson University in New Jersey.

## A.1 ELLIPSE

An ellipse is a curve generated by a point moving so that the sum of the distances from the two fixed points ( F 1 and F 2) called foci is a constant. The basic equation for the ellipse is

 (A.1)

where X = value of the curve in one direction

Y = value of the curve in other direction

a = 1/2 major axis

b = 1/2 minor axis

We note that the foci of the ellipse F 1 and F 2 are a distance a from the ends of the minor axis. Also the major axis equals 2 a in length. For construction of the ellipse the reader is referred to Sec. 2.3.

Figure A.1. Ellipse.

## A.2 PARABOLA

A parabola is a curve generated...

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