6 programming: programming contours – HEIDENHAIN TNC 406 User Manual
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HEIDENHAIN TNC 406, TNC 416
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6.1 General Information on Programming Electrode Movements ..... 86
Subprograms and program section repeats ..... 86
Parametric programming ..... 87
6.2 Contour Approach and Departure ..... 88
Starting point and end point of machining ..... 88
Tangential contour approach and departure ..... 91
Programmed machine axis movement ..... 92
6.4 Path Contours — Cartesian Coordinates ..... 93
Overview of path functions ..... 93
Inserting a chamfer CHF between two straight lines ..... 96
Circles and circular arcs ..... 97
Circular path C around circle center CC ..... 100
Circular path CR with defined radius ..... 101
Circular path CT with tangential connection ..... 103
6.5 Path Contours — Polar Coordinates ..... 109
Polar coordinate origin: Pole CC ..... 109
Circular path CP around pole CC ..... 111
Circular path CTP with tangential connection ..... 112