NCT Group 99M, 2000M manual 100

13.1 Sequence Number (Address N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 13.2 Conditional Block Skip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 13.3 Main Program and Sub-program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 13.3.1 Calling the Sub-program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 13.3.2 Return from a Sub-program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 13.3.3 Jump within the Main Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

14 The Tool Compensation	. 78
14.1 Referring to Tool Compensation Values (H and D)	. 78
14.2 Modification of Tool Compensation Values from the Program (G10)	. 79
14.3 Tool Length Compensation (G43, G44, G49)	. 80
14.4 Tool Offset (G45...G48)	. 81
14.5 Cutter Compensation (G38, G39, G40, G41, G42)	. 85
14.5.1 Start up of Cutter Compensation	. 88
14.5.2 Rules of Cutter Compensation in Offset Mode	. 92
14.5.3 Canceling of Offset Mode	. 95
14.5.4 Change of Offset Direction While in the Offset Mode	. 98
14.5.5 Programming Vector Hold (G38)	100
14.5.6 Programming Corner Arcs (G39)	100
14.5.7 General Information on the Application of Cutter Compensation	102
14.5.8 Interferences in Cutter Compensation	107
14.6 Three-dimensional Tool Offset (G41, G42)	112
14.6.1 Programming the Three-dimensional Tool Offset (G40, G41, G42)	112
14.6.2 The Three-dimensional Offset Vector	113
15 Special Transformations	115
15.1 Coordinate System Rotation (G68, G69)	115
15.2 Scaling (G50, G51)	116
15.3 Programmable Mirror Image (G50.1, G51.1)	117
15.4 Rules of Programming Special Transformations	118

16 Automatic Geometric Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 16.1 Programming Chamfer and Corner Round . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 16.2 Specifying Straight Line with Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 16.3 Intersection Calculations in the Selected Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 16.3.1 Linear-linear Intersection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 16.3.2 Linear-circular Intersection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 16.3.3 Circular-linear Intersection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 16.3.4 Circular-circular Intersection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 16.3.5 Chaining of Intersection Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

17 Canned Cycles for Drilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 17.1 Detailed Description of Canned Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 17.1.1 High Speed Peck Drilling Cycle (G73) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 17.1.2 Counter Tapping Cycle (G74) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 17.1.3 Fine Boring Cycle (G76) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

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