HEIDENHAIN iTNC 530 (340 49x-04) ISO programming - Manual (Page 400)

400 8 Programming: Cycles
8.6 SL c
y
cles
Overlapping contours
Pockets and islands can be overlapped to form a new contour. You can
thus enlarge the area of a pocket by another pocket or reduce it by an
island.
Subprograms: Overlapping pockets
Pockets A and B overlap.
The TNC calculates the points of intersection S1 and S2 (they do not
have to be programmed).
The pockets are programmed as full circles.
Subprogram 1: Pocket A
Subprogram 2: Pocket B
The subsequent programming examples are contour
subprograms that are called by Cycle G37 CONTOUR
GEOMETRY in a main program.
N510 G98 L1 *
N520 G01 G42 Y+10 Y+50 *
N530 I+35 J+50 *
N540 G02 X+10 Y+50 *
N550 G98 L0 *
N560 G98 L2 *
N570 G01 G42 X+90 Y+50 *
N580 I+65 J+50 *
N590 G02 X+90 Y+50 *
N600 G90 L0 *