·166·
Programming manual
CNC 8055
CNC 8055i
9.
CANNED CYCLES
·M· & ·EN· MODELS
SOFT: V02.2X
G82. Drilling canned cycle with dwell
9.8.1 Basic operation
1. If the spindle was previously running, it maintains the turning direction. If it was not in movement,
it will start by turning clockwise (M03).
2. Rapid movement of the longitudinal axis from the initial plane to the reference plane.
3. Drill the hole. Movement of the longitudinal axis at work feedrate, to the bottom of the hole
programmed in "I".
4. Dwell time K in hundredths of a second.
5. Withdrawal at rapid feedrate (G00) of the longitudinal axis to the initial or reference plane,
depending on whether G98 or G99 has been programmed.
Programming example assuming that the work plane is formed by the X and Y axes, that the Z axis
is the longitudinal axis and that the starting point is X0 Y0 Z0:
Tool withdrawal
While machining, the CNC lets withdraw the tool to the starting plane stopping the spindle when
the tool reaches the starting plane.
Activating PLC mark RETRACYC (M5065) stops the main axis and the tool is withdrawn without
stopping the spindle. The spindle stops when the tool is retracted, once it reaches the starting plane.
; Tool selection.
T1
M6
; Starting point.
G0 G90 X0 Y0 Z0
; Canned cycle definition. Three machining operations are carried out.
G82 G99 G91 X50 Y50 Z-98 I-22 K15 F100 S500 N3
; Positioning and canned cycle
G98 G90 G00 X500 Y500
; Cancels the canned cycle.
G80
; Positioning.
G90 X0 Y0
; End of program.
M30
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