beautypg.com

Overlapping contours, 8 sl c y cles – HEIDENHAIN iTNC 530 (340 49x-04) User Manual

Page 451

background image

HEIDENHAIN iTNC 530

451

8.8 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 S

1

and S

2

. They do not

have to be programmed.

The pockets are programmed as full circles.

Subprogram 1: Pocket A

Subprogram 2: Pocket B

Example: NC blocks

12 CYCL DEF 14.0 CONTOUR GEOMETRY

13 CYCL DEF 14.1 CONTOUR LABEL 1/2/3/4

X

Y

A

B

S

1

S

2

The subsequent programming examples are contour
subprograms that are called by Cycle 14 CONTOUR
GEOMETRY in a main program.

51 LBL 1

52 L X+10 Y+50 RR

53 CC X+35 Y+50

54 C X+10 Y+50 DR-

55 LBL 0

56 LBL 2

57 L X+90 Y+50 RR

58 CC X+65 Y+50

59 C X+90 Y+50 DR-

60 LBL 0