Programming manual
CNC 8055
CNC 8055i
CANNED CYCLES
9.
·M· & ·EN· MODELS
SOFT: V02.2X
·181·
G86. Boring cycle with withdrawal in G00
9.12.1 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. Movement at the working feedrate (G01) of the longitudinal axis to the bottom of the machined
hole, and boring.
4. Dwell, if parameter "K" has been programmed.
5. Spindle orientation to the position programmed in parameter Q.
6. The movement of the tool, for interpolated movements and slow feedrates, the distances
programmed for the parameters D and E. If the values are not programmed correctly it could
cause the blade to collide with the wall instead of pulling away from it.
7. Tool withdrawal, in rapid (G00), to the starting plane or to the reference plane depending on
whether G98 or G99 has been programmed.
8. Tool movement, in a rapid interpolated movement, the distances programmed in parameters D
and E with opposite signs (undoing the movement made in step 6).
9. When done with the withdrawal, the spindle will start in the same direction as it was turning
before.
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 selection.
T1
M6
; Starting point.
G0 G90 X0 Y0 Z0
; Canned cycle definition.
G86 G98 G91 X250 Y350 Z-98 I-22 K20 F100 S500
; Cancels the canned cycle.
G80
; Positioning.
G90 X0 Y0
; End of program.
M30
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