Siemens SINUMERIK 840D Programming Manual page 242

Turning Cycles
4
4.6 Thread undercut – CYCLE96
Further notes
You must activate a tool offset before the cycle is
called. Otherwise error message
61000 "No tool offset active"
is output and the cycle is aborted.
Programming example
Thread undercut_Form_A
You can machine a thread undercut of form A with
this program.
N10 D3 T1 S300 M3 G95 F0.3
N20 G0 G90 Z100 X50
N30 CYCLE96 (40, 60, "A")
N40 G90 G0 X30 Z100
N50 M30
4-242
X
60
Specification of technology values
Selection of starting position
Cycle call
Approach next position
End of program
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition
03.96
4
Z
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