HEIDENHAIN TNC 360 User Manual - Manual (Page 176)

8-23 TNC 360
8 Cycles
Fig. 8.23: Overlapping islands: area of inclusion
8.3 SL Cycles
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A
B
Subprograms: Overlapping islands
An island always requires a pocket as an additional boundary (here,
LBL 1). A pocket can also reduce several island surfaces. The starting
point of this pocket must be within the first island. The starting points of
the remaining intersecting island contours must lie outside the pocket.
0 BEGIN PGM 360823 MM
1 BLK FORM 0.1 Z X+0 Y+0 Z–20
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL DEF 1 L+0 R+2.5
4 TOOL CALL 1 Z S1000
5 CYCL DEF 14.0 CONTOUR GEOM.
6 CYCL DEF 14.1 CONTOUR LABEL 2/3/1
7 CYCL DEF 6.0 ROUGH-OUT
8 CYCL DEF 6.1 SET UP –2 DEPTH –10
9 CYCL DEF 6.2 PECKG –5 F500 ALLOW +0
10 CYCL DEF 6.3 ANGLE +0 F500
11 L Z+100 R0 FMAX M6
12 L X+50 Y+50 FMAX M3
13 L Z+2 FMAX M99
14 L Z+100 FMAX M2
15 LBL 1
16 L X+5 Y+5 RL
17 L X+95
18 L Y+95
19 L X+5
20 L Y+5
21 LBL 0
22 LBL 2
26 LBL 0
27 LBL 3
31 LBL 0
32 END PGM 360823 MM
Area of inclusion
Elements A and B are to be left unmachined
including the mutually overlapped surface:
• A and B must be islands.
• The first island must start outside the second
island.
22 LBL 2
23 L X+10 Y+50 RR
24 CC X+35 Y+50
25 C X+10 Y+50 DR+
26 LBL 0
27 LBL 3
28 L X+90 Y+50 RR
29 CC X+65 Y+50
30 C X+90 Y+50 DR+
31 LBL 0
32 END PGM 360823 MM
The supplements and subprograms are entered in the main program on page 8-23.