Programming manual
CNC 8055
CNC 8055i
CANNED CYCLES
9.
·M· & ·EN· MODELS
SOFT: V02.2X
·179·
G86. Boring cycle with withdrawal in G00
9.12 G86. Boring cycle with withdrawal in G00
This cycle bores at the point indicated until the final programmed coordinate is reached. It is possible
to program a dwell at the bottom of the machined hole.
After the quail has penetrated, it is possible to orient the spindle and retract the quail before the exit
movement, thus preventing the part from scratching. This is only available when using spindle
orientation.
Working in Cartesian coordinates, the basic structure of the block is as follows:
G86 G98/G99 X Y Z I K Q D E
[ G98/G99 ] Withdrawal plane
G98 The tool withdraws to the Initial Plane, once the hole has been bored.
G99 The tool withdraws to the Reference Plane, once the hole has been bored.
[ X/Y±5.5 ] Machining coordinates
These are optional and define the movement of the axes of the main plane to position the tool at
the machining point.
This point can be programmed in Cartesian coordinates or in polar coordinates, and the coordinates
may be absolute or incremental, according to whether the machine is operating in G90 or G91.
[ Z±5.5 ] Reference plane
Defines the reference plane coordinate. It can be programmed in absolute coordinates or
incremental coordinates, in which case it will be referred to the initial plane.
If not programmed, it assumes as reference plane the current position of the tool.
[ I±5.5 ] Reaming depth.
Defines boring depth. It can be programmed in absolute coordinates or incremental coordinates and
in this case will be referred to the reference plane.
[ K5 ] Dwell
Defines the dwell, in hundredths of a second, after boring until the withdrawal begins. If not
programmed, the CNC will take the value of "K0".
[ Q±5.5 ] Spindle position for the withdrawal
It defines the spindle position, in degrees, to separate the cutter from the wall of the hole.
If not programmed, the withdrawal will be done without separating the cutter from the wall of the
hole, the spindle stopped and in rapid.
K
G01
G00
I
M03
M04
M03
M04
G98
G99
M05
D
E
Q