CNC - Computer Numerical Control Programmig Basics.pdf

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C OMPUTER N UMERICAL
P ROGRAMMING B ASICS
A Primer for the
SkillsUSA/VICA
Championships
Steve Krar Arthur Gill
Distributed to educational administrators,
instructors, students, and apprentices
with the compliments of
INDUSTRIAL PRESS, INC.
publishers of
MACHINERY’S HANDBOOK
“The Bible of the Machine Trades”
C ONTROL
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Computer
Numerical
Control
Programming
Basics
Steve Krar Arthur Gill
This book is not intended for sale under any circumstances.
INDUSTRIAL PRESS INC.
200 Madison Avenue, New York, NY 10016
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Photo Credits - Allen Bradley, Deckel Maho Inc., Denford Inc., Emco
Maier Corp., Icon Corp., Kelmar Associates, Superior Electric Co.
Development Resources provided by Paul Koontz, Denford Inc.
Page Layout / Design - Coree Kilo Price, Denford Inc.
Library of Congress Cataloging-in-Publication Data
Krar, Steve F.
COMPUTER Numerical Control Programming Basics / Steve
Krar, Arthur Gill.
p. cm.
ISBN 0-07-023333-0
1.
II Title.
TJ1189, K74 1999
89-12571
CIP
Some of the artwork for this book was processed electronically.
Computer Numerical Control Programming Basics
Copyright © 1999 by Kelmar Associates. All rights reserved.
Printed in the United States of America. Except as permitted
under the United States Copyright Act, no part of this
publication can be reproduced or distributed in any form or
means, or stored in a database or retrieval system without the
written permission of the publisher.
Send all inquiries to:
Kelmar Associates
420 Fitch Street, Welland, ON L3C 4W8
Phone: (905) 732-4193
E-mail: skrar@netcom.ca
Industrial Press Edition ISBN 0-8311-3131-4
Machine Tools - Numerical Control. I. Gill, Arthur, date.
CONTENTS
SECTION
PAGE
Foreword
1
Preface
7
Cartesian Coordinate System
7
Machines Using CNC
9
Programming Systems
11
Point-to-Point or Continuous Path
13
Point-to-Point Positioning
14
Continuous Path (Contouring)
15
Interpolation
15
Programming Format
17
Programming for Positioning
23
Work Settings and Offsets
26
CNC Bench-Top Milling and Turning Centers
30
CNC Programming Hints — Milling
32
Milling and Drilling Programming
34
CNC Programming Hints – Turning
38
Fanuc Compatible Programming
39
Turning Programming
40
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