Programming: programming contours – HEIDENHAIN TNC 620 (340 56x-03) User Manual
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FK free contour programming (Advanced programming features software option) ..... 162
Miscellaneous functions M ..... 162
Subprograms and program section repeats ..... 162
Programming with Q parameters ..... 162
6.2 Fundamentals of Path Functions ..... 163
Programming tool movements for workpiece machining ..... 163
6.3 Contour Approach and Departure ..... 166
Overview: Types of paths for contour approach and departure ..... 166
Important positions for approach and departure ..... 167
Approaching on a straight line with tangential connection: APPR LT ..... 169
Approaching on a straight line perpendicular to the first contour point: APPR LN ..... 169
Approaching on a circular path with tangential connection: APPR CT ..... 170
Departing on a straight line with tangential connection: DEP LT ..... 172
Departing on a straight line perpendicular to the last contour point: DEP LN ..... 172
Departing on a circular path with tangential connection: DEP CT ..... 173
6.4 Path Contours—Cartesian Coordinates ..... 174
Overview of path functions ..... 174
Inserting a chamfer between two straight lines ..... 176
Circular path C around circle center CC ..... 179
Circular path CR with defined radius ..... 180
Circular path CT with tangential connection ..... 182
6.5 Path Contours—Polar Coordinates ..... 187
Zero point for polar coordinates: pole CC ..... 188
Circular path CP around pole CC ..... 189
Circular path CTP with tangential connection ..... 190