beautypg.com

HEIDENHAIN TNC 407 (280 580) ISO Programming User Manual

Page 243

background image

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.