·188·
Programming manual
CNC 8055
CNC 8055i
9.
CANNED CYCLES
·M· & ·EN· MODELS
SOFT: V02.2X
G88. Circular pocket canned cycle
9.14 G88. Circular pocket canned cycle
This cycle executes a circular pocket at the point indicated until the final programmed coordinate
is reached.
It is possible to program, in addition to milling pass and feedrate, a final finishing step with its
corresponding milling feedrate.
Working in Cartesian coordinates, the basic structure of the block is as follows:
G88 G98/G99 X Y Z I J B C D H L V
[ G98/G99 ] Withdrawal plane
G98 The tool withdraws to the Initial Plane, once the pocket has been made.
G99 The tool withdraws to the Reference Plane, once the pocket has been made.
[ 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 may be programmed either in absolute or incremental coordinates, in which case it will be referred
to the starting plane. If not programmed, it assumes as reference plane the current position of the
tool.
[ I±5.5 ] Machining depth
Defines the machining depth. It may be programmed either in absolute or incremental coordinates,
in which case it will be referred to the reference plane.
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