4 - Fagor Automation

1.
MILLING CANNED CYCLES.
CNC 8065
(REF: 1209)
·32·
G81. Drilling canned cycle
1.2 G81. Drilling canned cycle
Programming format in Cartesian coordinates:
Parameter definition:
G81 Z I K A
Canned cycles (·M· model)
Z Reference plane.
In G90, coordinate referred to part zero.
In G91, coordinate referred to starting plane (Zi).
If not programmed, it assumes as reference plane the current position of the tool (Z=Zi).
I Drilling depth.
In G90, coordinate referred to part zero.
In G91, coordinate referred to reference plane (Z).
K Delay, in seconds, between the drilling and the withdrawal movement.
If not programmed, it assumes K0.
A Spindle behavior when going into the hole and coming out of it.
A0: The tool goes into the hole and comes out turning.
A1: The tool goes into the hole turning and comes out stopped.
If not programmed, it assumes a value of A0.
Basic operation:
1 If the spindle was previously running, it maintains the turning direction. If it is stopped,
it starts clockwise (M03).
2 Rapid movement (G0) of the longitudinal axis from the starting plane (Zi) to the reference
plane (Z).
3 Drill the hole. Movement of the longitudinal axis at work feedrate, to the bottom of the
hole programmed in "I".
4 Dwell, in seconds, if it has been programmed.
5 Rapid withdrawal (G0) to the starting plane (Zi) if function G98 is active or to the reference
plane (Z) if function G99 is active. The spindle will come out turning or stopped depending
on parameter "A".