HEIDENHAIN iTNC 530 (340 49x-02) ISO programming - Manual (Page 399)

HEIDENHAIN iTNC 530 399
8.7 SL Cy
cles with Cont
our F
o
rm
ula
Overlapping contours
By default, the TNC considers a programmed contour to be a pocket.
With the functions of the contour formula, you can convert a contour
from a pocket to an island.
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.
The subsequent programming examples are contour
description programs that are defined in a contour
definition program. The contour definition program is
called through the %:CNT function in the actual main
program.