Programming: Programming Contours - HEIDENHAIN iTNC 530 User Manual

6 Programming: Programming Contours ..... 219

6.1 Tool movements ..... 220
Path functions ..... 220
FK free contour programming ..... 220
Miscellaneous functions M ..... 220
Subprograms and program section repeats ..... 220
Programming with Q parameters ..... 220
6.2 Fundamentals of path functions ..... 221
Programming tool movements for workpiece machining ..... 221
6.3 Contour approach and departure ..... 225
Overview: Types of paths for contour approach and departure ..... 225
Important positions for approach and departure ..... 226
Approaching on a straight line with tangential connection: APPR LT ..... 228
Approaching on a straight line perpendicular to the first contour point: APPR LN ..... 228
Approaching on a circular path with tangential connection: APPR CT ..... 229
Approaching on a circular arc with tangential connection from a straight line to the contour: APPR LCT ..... 230
Departing on a straight line with tangential connection: DEP LT ..... 231
Departing on a straight line perpendicular to the last contour point: DEP LN ..... 231
Departing on a circular path with tangential connection: DEP CT ..... 232
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT ..... 232
6.4 Path contours—Cartesian coordinates ..... 233
Overview of path functions ..... 233
Straight line L ..... 234
Inserting a chamfer between two straight lines ..... 235
Corner rounding RND ..... 236
Circle center CC ..... 237
Circular arc C around circle center CC ..... 238
Circular path CR with defined radius ..... 239
Circular path G06 with tangential connection ..... 241
6.5 Path contours—Polar coordinates ..... 246
Overview ..... 246
Zero point for polar coordinates: pole CC ..... 247
Straight line LP ..... 247
Circular path CP around pole CC ..... 248
Circular path CTP with tangential connection ..... 249
Helical interpolation ..... 250
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