HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 233)

8-26
8 Cycles
TNC 407/TNC 415 B/TNC 425
Fig. 8.25: Overlapping islands: area of exclusion
8.3 SL Cycles (Group I)
A
B
A B
Area of exclusion
Surface A is to be left unmachined without the
portion overlapped by B:
• A must be an island and B a pocket.
• B must lie within A.
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+40 Y+50 RL
29 CC X+65 Y+50
30 C X+40 Y+50 DR+
31 LBL 0
32 END PGM OVERL2 MM
Area of intersection
The area mutually overlapped by A and B is to
remain unmachined.
• A and B must be islands.
• A must start within B.
22 LBL 2
23 L X+60 Y+50 RR
24 CC X+35 Y+50
25 C X+60 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 OVERL2 MM
Fig. 8.26: Overlapping islands: area of intersection