Programming: programming contours – HEIDENHAIN TNC 620 (340 56x-02) User Manual
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FK free contour programming (Advanced programming features software option) ..... 154
Miscellaneous functions M ..... 154
Subprograms and program section repeats ..... 154
Programming with Q parameters ..... 155
6.2 Fundamentals of Path Functions ..... 156
Programming tool movements for workpiece machining ..... 156
6.3 Contour Approach and Departure ..... 160
Overview: Types of paths for contour approach and departure ..... 160
Important positions for approach and departure ..... 161
Approaching on a straight line with tangential connection: APPR LT ..... 163
Approaching on a straight line perpendicular to the first contour point: APPR LN ..... 163
Approaching on a circular path with tangential connection: APPR CT ..... 164
Departing on a straight line with tangential connection: DEP LT ..... 166
Departing on a straight line perpendicular to the last contour point: DEP LN ..... 166
Departure on a circular path with tangential connection: DEP CT ..... 167
6.4 Path Contours—Cartesian Coordinates ..... 168
Overview of path functions ..... 168
Inserting a chamfer between two straight lines ..... 170
Circular path C around circle center CC ..... 173
Circular path CR with defined radius ..... 174
Circular path CT with tangential connection ..... 176
6.5 Path Contours—Polar Coordinates ..... 181
Zero point for polar coordinates: pole CC ..... 182
Circular path CP around pole CC ..... 183
Circular path CTP with tangential connection ..... 184