·150·
Programming manual
CNC 8055
CNC 8055i
9.
CANNED CYCLES
·M· & ·EN· MODELS
SOFT: V02.2X
Influence zone of a canned cycle
9.2.1 G79. Modification of the canned cycle parameters
The CNC allows one or several parameters of an active canned cycle to be modified by programming
the G79 function, without any need for redefining the canned cycle.
The CNC will continue to maintain the canned cycle active and will perform the following machinings
of the canned cycle with the updated parameters.
The G79 function must be programmed alone in a block, and this block must not contain any more
information.
Next 2 programming examples are shown assuming that the work plane is formed by the X and Y
axes, and that the longitudinal axis (perpendicular) is the Z axis:
T1
M6
; Starting point.
G00 G90 X0 Y0 Z60
; Defines drilling cycle. Drills in A.
G81 G99 G91 X15 Y25 Z-28 I-14
; Drills in B.
G98 G90 X25
; Modifies reference plane and machining depth.
G79 Z52
; Drills in C.
G99 X35
; Drills in D.
G98 X45
; Modifies reference plane and machining depth.
G79 Z32
; Drills in E.
G99 X55
; Drills in F.
G98 X65
M30
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