Siemens SINUMERIK 808D Programming And Operating Manual page 135

Boring cycle (G85):
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
None.
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.
R
Always program R only in one block with an axis motion, otherwise the programmed values are not stored modally.
Deselection
The G functions of Group 01 (G00 to G03) and G85 should not be used together in one block, as otherwise G85 is
deselected.
Example
M3 S150
G90 G0 Z100.
G90 G99 G85 X200. Y-150. Z-100. R50.
F150.
Y-500.
Y-700.
X950.
Y-500.
G98 Y-700.
G80
G28 G91 X0 Y0 Z0
M5
Programming and Operating Manual (ISO Turning/Milling)
01/2017
;Rotary motion of stem
;Positioning, drilled hole 1,
;then return to point R
;Positioning, drilled hole 2,
;then return to point R
;Positioning, drilled hole 3,
;then return to point R
;Positioning, drilled hole 4,
;then return to point R
;Positioning, drilled hole 5,
;then return to point R
;Positioning, drilled hole 6,
;then return to initial plane
;Deselection of the fixed cycle
;Return to reference position
;Spindle stop
135