User`s manual for cycle programming

HEIDENHAIN | TNC 640 | User’s manual for cycle programming | 9/2015
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6 Fixed Cycles: Pattern Definitions................................................................................................ 185
6.1 Fundamentals...................................................................................................................................... 186
Overview............................................................................................................................................... 186
6.2 POLAR PATTERN (Cycle 220, DIN/ISO: G220).................................................................................. 187
Cycle run............................................................................................................................................... 187
Please note while programming:..........................................................................................................187
Cycle parameters.................................................................................................................................. 188
6.3 LINEAR PATTERN (Cycle 221, DIN/ISO: G221)................................................................................. 190
Cycle run............................................................................................................................................... 190
Please note while programming:..........................................................................................................190
Cycle parameters.................................................................................................................................. 191
6.4 Programming Examples..................................................................................................................... 192
Example: Polar hole patterns................................................................................................................ 192