Fanuc Series 15i/150i-MA (Programming) Operators Manual

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13.1.5 Drilling Cycle Counter Boring Cycle (G82)
This cycle is used for normal drilling.
Cutting feed is performed to the bottom of the hole. At the bottom, a
dwell is performed, then the tool is retracted in rapid traverse.
This cycle is used to drill holes more accurately with respect to depth.
G82(G98) G82(G99)
G82 X_ Y_ Z_ R_ P_ F_ L_ ;
X_ Y_ : Hole position data
Z_ : The distance from point R to the bottom of the hole
R_ : The distance from the initial level to point R level
P_ : Dwell time at the bottom of a hole
F_ : Cutting feed rate
L_ : Number of repeats (if required)
Initial level
Point R
Point Z
Point Z
Point R
Point R level
- Operation
After positioning along the X- and Y-axes, rapid traverse is performed
to point R.
Drilling is then performed from point R to point Z.
When the bottom of the hole has been reached, a dwell is performed.
The tool is then retracted in rapid traverse.
- Spindle rotation
Before specifying G82, use a miscellaneous function (M code) to rotate
the spindle.
- Miscellaneous function
When the G82 command and an M code are specified in the same block,
the M code is executed at the time of the first positioning operation.
When L is used to specify the number of repeats, the M code is
executed for the first hole only; for the second and subsequent holes,
the M code is not executed.

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