Drilling Cycle (G85) - Siemens Sinumerik 840D sl Programming Manual

Additional functions
4.1 Program supporting functions
4.1.7

Drilling cycle (G85)

Format
G85 X... Y... R... F... K... ;
X,Y: Drilled hole position
Z: Distance from point R to the bottom of the hole
R: Distance from the initial plane to plane R
F: Feedrate
K: Number of repetitions
Figure 4-10
Explanations
A traversing movement takes place to point R in rapid traverse after the positioning along the
X and Y axis. Drilling takes place from point R to point Z. On reaching point Z, a retraction
motion to point R takes place with cutting feedrate.
Restrictions
Changeover of the axes
Before changing over the drilling axis, one must first deselect the fixed cycle.
Drilling
The drilling cycle is executed only if an axis motion, e.g. is programmed with X, Y, Z or R.
90
Drilling cycle (G85)
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling