·170·
Programming manual
CNC 8055
CNC 8055i
9.
CANNED CYCLES
·M· & ·EN· MODELS
SOFT: V02.2X
G83. Deep-hole drilling canned cycle with constant peck
9.9.1 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. First drilling operation. The longitudinal axis moves in G01 to the programmed incremental depth
"I".
4. Drilling loop. The following steps will be repeated "J-1" times as in the previous step the first
programmed drilling was done.
·1· Withdrawal of the longitudinal axis in rapid (G00) to the reference plane.
·2· Longitudinal axis approach in rapid (G00):
If INPOSW2 < INPOSW1, down to 1mm off the previous drilling peck.
If not, down to twice the value of INPOSW2.
·3· New drilling step. G01 movement of the longitudinal axis to the incremental depth
programmed in "I".
If INPOSW2=0 in G7. If not, in G50.
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.
The first drilling penetration is done in G07 or G50 depending on the value assigned to the parameter
of the longitudinal axis "INPOSW2 (P51)" and to parameter "INPOSW1 (P19)". This is important
to join a drilling operation with another one in multiple drilling so the tool path is faster and smoother.
If INPOSW2 < INPOSW1 in G07 (square corner).
If INPOSW2 >= INPOSW1 in G50 (controlled round corner).
If a scaling factor is applied to this cycle, drilling will be performed proportional to that programmed,
with the same step "I" programmed, but varying the number of steps "J".
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:
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