HEIDENHAIN TNC 426 (280 476) Pilot - Manual (Page 27)

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FK Free Contour Programming
Circle Center (CC) in an FC/FCT block
Cartesian coordinates of the circle center
Polar coordinates of the circle center
referenced to FPOL
Incremental input
Auxiliary Points
... P1, P2, P3 on a contour
For straight lines: up to 2 auxiliary points
For circles: up to 3 auxiliary points
... next to a contour
Coordinates of the auxiliary points
Perpendicular distance
10 FC CCX+20 CCY+15 DR+ R15
11 FPOL X+20 Y+15
...
13 FC DR+ R15 CCPR+35 CCPA+40
13 FC DR- R10 P1X+42.929 P1Y+60.071
14 FLT AN-70 PDX+50 PDY+53 D10