2. FUNCTION TO SIMPLIFY
(For the Power Mate i–D/D2)
This cycle is used to bore a hole.
G89 X_ Z_ R_ P_ F_ ;
X_ : 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
This cycle is almost the same as G85. The difference is that this cycle
performs a dwell at the bottom of the hole.
Before specifying G89, use a miscellaneous function (M code) to rotate
When the G89 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 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.
Boring Cycle (G89)