Unit 1 Basic Knowledge of CNC Machine Operation Lesson 1 Basic Structure of Modem CNC Machine Lesson 2 The Program Editing Panel Lesson 3 Inputting a Program Lesson 4 The Machine Operation Panel Lesson 5 Manual Operation Unit 2 Safety Precautions Lesson 1 How to Do Before Machining a Workpiece （I） Lesson 2 How to Do Before Machining a Workpiece （II） Lesson 3 The Definition of Programming Safety Precautions Lesson 4 The Definition of Waming （I） Lesson 5 The Definition of Warning （II） Lesson 6 The Definition of Warning （III） Lesson 7 Warnings and Cautions Related to Programming Lesson 8 Warnings and Cautions Related to Handing Lesson 9 Warnings Related to Daily Maintenance Unit 3 Interpolation Function Lesson 1 Continuous Thread Cutting Lesson 2 Multiple——Thread Cutting Lesson 3 Skip Function Unit 4 Feed Function Lesson 1 General Feed Function Lesson 2 Rapid Traverse Lesson 3 Cutting Feed Lesson 4 Dwell （G04） Format Unit 5 Coordinate System Lesson 1 Machine Coordinate System Lesson 2 Workpiece Coordinate System Lesson 3 Local Coordinate System Lesson 4 Plane Selection Unit 6 Spindle Speed Function Lesson 1 Specifying the Spindle Speed With a Code Lesson 2 Constant Surface Speed Control （G96， G97） Format （I） Lesson 3 Constant Surface Speed Control （G96， G97）Format （II） Lesson 4 Spindle Speed Fluctuation Detection Functioa（G25，G26） Lesson 5 Spindle Positioning With a Semi-fixed Angle
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