FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

PROGRAMMING
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
B–62764EN/01
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This cycle is used to bore a hole.
G86 (G98) G86 (G99)
G86 X_ Y_ Z_ R_ F_ K_ ;
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
F_ : Cutting feed rate
K_ : Number of repeats
Point R
Initial level
Point R level
Point Z
Spindle stop
Spindle CW
Spindle CW
Point R
Point Z
Spindle stop
After positioning along the X– and Y–axes, rapid traverse is performed
to point R.
Drilling is performed from point R to point Z.
When the spindle is stopped at the bottom of the hole, the tool is retracted
in rapid traverse.
Before specifying G86, use a miscellaneous function (M code) to rotate
the spindle.
When the G86 command and an M code are specified in the same block,
the M code is executed at the time of the first positioning operation.
The system then proceeds to the next drilling operation.
When K 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.
When a tool length offset (G43, G44, or G49) is specified in the canned
cycle, the offset is applied at the time of positioning to point R.
14.1.10
Boring Cycle
(G86)
Format
Explanations

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