HEIDENHAIN TNC 620 (73498x-01) - Manual (Page 18)

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6.1 Tool movements ..... 170
Path functions ..... 170
FK free contour programming (Advanced Programming Features software option) ..... 170
Miscellaneous functions M ..... 170
Subprograms and program section repeats ..... 170
Programming with Q parameters ..... 170
6.2 Fundamentals of path functions ..... 171
Programming tool movements for workpiece machining ..... 171
6.3 Contour approach and departure ..... 174
Overview: Types of paths for contour approach and departure ..... 174
Important positions for approach and departure ..... 175
Approaching on a straight line with tangential connection: APPR LT ..... 177
Approaching on a straight line perpendicular to the first contour point: APPR LN ..... 177
Approaching on a circular path with tangential connection: APPR CT ..... 178
Approaching on a circular arc with tangential connection from a straight line to the contour: APPR LCT ..... 179
Departing on a straight line with tangential connection: DEP LT ..... 180
Departing on a straight line perpendicular to the last contour point: DEP LN ..... 180
Departure on a circular path with tangential connection: DEP CT ..... 181
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT ..... 181
6.4 Path contours—Cartesian coordinates ..... 182
Overview of path functions ..... 182
Straight line L ..... 183
Inserting a chamfer between two straight lines ..... 184
Corner rounding RND ..... 185
Circle center CCI ..... 186
Circular path C around circle center CC ..... 187
Circular path CR with defined radius ..... 188
Circular path CT with tangential connection ..... 190
6 Programming: Programming contours ..... 169