HEIDENHAIN TNC 407, User Manual

Page: 243 / 333

8-23
8 Cycles
TNC 426/TNC 425/TNC 415 B/TNC 407
Fig. 8.21: Overlapping pockets: area of inclusion
Fig. 8.23: Overlapping pockets: area of intersection
Fig. 8.22: Overlapping pockets: area of exclusion
8.3 SL Cycles (Group I)
A
B
A
B
A
B
Area of inclusion
Both surfaces A and B are to be machined, includ-
ing the mutually overlapped area.
• A and B must be pockets.
• The first pocket (in Cycle G37) must start outside
the second pocket.
N110 G98 L1 *
N120 G01 G41 X+10 Y+50 *
N130 I+35 J+50 G03 X+10 Y+50 *
N140 G98 L0 *
N150 G98 L2 *
N160 G01 G41 X+90 Y+50 *
N170 I+65 J+50 G03 X+50 Y+50 *
N180 G98 L0 *
Area of exclusion
Surface A is to be machined without the portion
overlapped by
B.
• A must be a pocket and B an island.
• A must start outside of B.
N110 G98 L1 *
N120 G01 G41 X+10 Y+50 *
N130 I+35 J+50 G03 X+10 Y+50 *
N140 G98 L0 *
N150 G98 L2 *
N160 G01 G42 X+90 Y+50 *
N170 I+65 J+50 G03 X+90 Y+50 *
N180 G98 L0 *
Area of intersection
Only the area overlapped by both A and B is to be
machined.
• A and B must be pockets.
• A must start inside B.
N110 G98 L1 *
N120 G01 G41 X+60 Y+50 *
N130 I+35 J+50 G03 X+60 Y+50 *
N140 G98 L0 *
N150 G98 L2 *
N160 G01 G41 X+90 Y+50 *
N170 I+65 J+50 G03 X+90 Y+50 *
N180 G98 L0 *
The subprograms are used in the main program on page 8-22.