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HEIDENHAIN TNC 426B (280 472) ISO programming User Manual

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Contents

Contents

VI

7 PROGRAMMING: MISCELLANEOUS FUNCTIONS ..... 119

7.1

Entering Miscellaneous Functions M ..... 120

7.2

Miscellaneous Functions for Program Run Control, Spindle and Coolant ..... 121

7.3

Miscellaneous Functions for Coordinate Data ..... 121

7.4

Miscellaneous Functions for Contouring Behavior ..... 124

Smoothing corners: M90 ..... 124

Entering contour transitions between two contour elements: M112 (not TNC 426, TNC 430) ..... 125

Contour filter: M124 (not TNC 426, TNC 430) ..... 127

Machining small contour steps: M97 ..... 129

Machining open contours: M98 ..... 130

Feed rate factor for plunging movements: M103 ..... 131

Feed rate in micrometers per spindle revolution: M136

(only TNC 426, TNC 430 with NC software 280 474-xx) ..... 131

Feed rate at circular arcs: M109/M110/M111 ..... 132

Calculating the radius-compensated path in advance (LOOK AHEAD): M120 ..... 132

Superimposing handwheel positioning during program run: M118 (not TNC 410) ..... 133

7.5

Miscellaneous Functions for Rotary Axes ..... 134

Feed rate in mm/min on rotary axes A, B, C: M116 (not TNC 410) ..... 134

Shorter-path traverse of rotary axes: M126 ..... 134

Reducing display of a rotary axis to a value less than 360°: M94 ..... 135

Automatic compensation of machine geometry when working with tilted axes: M114

(not TNC 410) ..... 136

Maintaining the position of the tool tip when positioning with tilted axes (TCPM*): M128 ..... 137

Exact stop at corners with nontangential transitions: M134 ..... 139

Selection of tilting axes: M138 (only TNC 426, TNC 430 with NC software 280 474-xx) ..... 139

7.6

Miscellaneous Functions for Laser Cutting Machines (not TNC 410) ..... 140

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