COMPUTER NUMERICAL CONTROL PROGRAMMING BASICS

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COMPUTERNUMERICALCONTROLPROGRAMMINGBASIC SA Primer for theSkillsUSA/VICAChampionshipsSteve 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 10016CONTENTSSECTIONPAGEForeword1Preface 7Cartesian Coordinate System7Machines Using CNC9Programming Systems11Point-to-Point or Continuous Path13Point-to-Point Positioning14Continuous Path (Contouring)15Interpolation15Programming Format17Programming for Positioning23Work Settings and Offsets26CNC Bench-Top Milling and Turning Centers30CNC PROGRAMMING Hints Milling32Milling and Drill

the location would be X + 1.000 and Y - 2.000. In CNC program-ming it is not necessary to indicate plus (+) values since these are assumed. However, the minus (-) values must be indicated. For example, the locations of both A and B would be indicated as follows: AX2.000 Y2.000 BX1.000 Y-2.000 Machines Using CNC

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