HEIDENHAIN SW 54843x-02 DIN Programming - Manual (Page 259)

HEIDENHAIN MANUALplus 620, CNC PILOT 640 259
4.16 T
ools, compensations
Compensation of right-hand tool tip G150
Compensation of left-hand tool tip G151
G150/G151 defines the tool reference point for recessing and button
tools.
 G150: Reference point is on right tip
 G151: Reference point is on left tip.
G150/G151 is effective from the block in which it is programmed and
remains in effect up to
 the next tool change
 program end.
Example: G150, G151
. . .
N1 T3 G95 F0.25 G96 S160 M3
N2 G0 X62 Z2
N3 G0 Z-29.8
N4 G1 X50.4
N5 G0 X62
N6 G150
N7 G1 Z-20.2
N8 G1 X50.4
N9 G0 X62
N10 G151 [recessing finishing]
N11 G148 O0
N12 G0 X62 Z-30
N13 G1 X50
N14 G0 X62
N15 G150
N16 G148 O2
N17 G1 Z-20
N18 G1 X50
N19 G0 X62
. . .
 The displayed actual values always refer to the tool tip
defined in the tool data.
 If you use TRC, after G150/G151 you must also adjust
G41/G42.