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COMPUTER NUMERICAL CONTROL PROGRAMMING BASICS

COMPUTERNUMERICALCONTROLPROGRAMMINGBASIC SA Primer for theSkillsUSA/VICAC hampionshipsSteve Krar Arthur GillDistributed to educational administrators,instructors, students, and apprentices with the compliments of INDUSTRIAL PRESS, of MACHINERY S HANDBOOK The Bible of the Machine Trades ComputerNumericalControlProgrammingBasic sSteve Krar Arthur GillThis book is not intended for sale under any PRESS Madison Avenue, New York, NY 10016 CONTENTSSECTIONPAGEF oreword1 Preface7 Cartesian Coordinate System7 Machines Using CNC9 PROGRAMMING Systems11 Point-to-Point or Continuous Path13 Point-to-Point Positioning14 Continuous Path (Contouring)15 Interpolation15 PROGRAMMING Format17 PROGRAMMING for Positioning23 Work Settings and Offsets26 CNC Bench-Top Milling and turning Centers30 CNC PROGRAMMING Hints Milling32 Milling and Drilling Programming34 CNC PROGRAMMING Hints Turning38

Fig. 4 The main axes of a lathe or turning center. (Emco Maier Corp) Milling Machine The milling machine has always been one of the most versatile machine tools used in industry (Fig. 5). Operations such as milling, contouring, gear cutting, drilling, boring, and reaming are only a few of the many operations which can be performed on a milling ...

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