Enhanced Level Commands
4.1 Program support functions (1)
04.07
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SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) -- 04.07 Edition
4.1.17 Threads with variable lead (G34)
Syntax G34 X.. Z.. F.. K.. is used to program threads with variable lead in ISO
dialect T and M mode, whereby
X.. Z.. = Thread end position
F.. = Lead
K.. = Lead increase (positive value)/
lead decrease (negative value)
G34 is used to increment or decrement the lead by the value programmed at
address K on each spindle revolution.
Example:
N200 X50 Z80 G01 F.8 G95 S500 M3
N300 G91 G34 Z25.5 F2 K0.1
The programmed distance of 25.5 mm corresponds
to 10 spindle revolutions.