HEIDENHAIN TNC 320 (340 55x-05) - Manual (Page 20)

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6.1 Tool Movements ..... 160
Path functions ..... 160
FK free contour programming (Advanced programming features software option) ..... 160
Miscellaneous functions M ..... 160
Subprograms and program section repeats ..... 160
Programming with Q parameters ..... 160
6.2 Fundamentals of Path Functions ..... 161
Programming tool movements for workpiece machining ..... 161
6.3 Contour Approach and Departure ..... 164
Overview: Types of paths for contour approach and departure ..... 164
Important positions for approach and departure ..... 165
Approaching on a straight line with tangential connection: APPR LT ..... 167
Approaching on a straight line perpendicular to the first contour point: APPR LN ..... 167
Approaching on a circular path with tangential connection: APPR CT ..... 168
Approaching on a circular arc with tangential connection from a straight line to the contour: APPR LCT ..... 169
Departing on a straight line with tangential connection: DEP LT ..... 170
Departing on a straight line perpendicular to the last contour point: DEP LN ..... 170
Departure on a circular path with tangential connection: DEP CT ..... 171
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT ..... 171
6.4 Path Contours—Cartesian Coordinates ..... 172
Overview of path functions ..... 172
Straight line L ..... 173
Inserting a chamfer between two straight lines ..... 174
Corner rounding RND ..... 175
Circle center CCI ..... 176
Circular path C around circle center CC ..... 177
Circular path CR with defined radius ..... 178
Circular path CT with tangential connection ..... 180
6.5 Path Contours—Polar Coordinates ..... 185
Overview ..... 185
Zero point for polar coordinates: pole CC ..... 186
Straight line LP ..... 186
Circular path CP around pole CC ..... 187
Circular path CTP with tangential connection ..... 188
Helical interpolation ..... 189
6 Programming: Programming Contours ..... 159