HEIDENHAIN iTNC 530 (340 422) - Manual (Page 408)

408 8 Programming: Cycles
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 following program examples are contour description
programs that are defined in a contour definition program.
The contour definition program is called through the SEL
CONTOUR
function in the actual main program.