Owner's manual

Milling Fixed Cycles
Chapter 26
26-28
The format for the G85 cycle is as follows:
G85X__Y__Z__R__F__L__;
Where : Is :
X,Y
specifieslocation ofthe hole.
Z
defines the holebottom.
R
defines the Rpointlevel.
F
defines the cutting feedrate.
L
defines the numberoftimesthe millingfixedcycle isrepeated.
(See section 26.3 for a detailed description of these parameters.)
Important: The programmer or operator must start spindle rotation.
Figure 26.12
G85: Boring Cycle (Without Dwell, Feed Out)
C
u
t
t
i
n
g
f
e
e
d
Rapid feed
Initial point
level
R point level
Hole bottom
1
2
3
4
5
In the G85 right-hand tapping cycle, the control moves the axes in the
following manner:
1. The tool rapids to initial point level the hole location.
2. The boring tool then rapids to the R point level, slows to the
programmed c utting feedrate and begins the boring operation.
3. The boring tool continues to drill at the programmed feedrate until it
reaches the depth of the hole as programmed with the Z--word.
(G85): Boring Cycle, No
Dwell/Feed Out