Siemens SINUMERIK 840D Operation/Programming Manual page 256

3
Programming with ShopMill
3.7 Drilling
Parameters
Z0 Height of workpiece (abs. or inc.)
X0 X position of pitch circle center point (abs. or inc.)
Y0 Y position of pitch circle center point (abs. or inc.)
α0 Basic angle of rotation; angle of 1st position in relation to X axis.
α1 Advance angle; after the first hole has been drilled, all further positions are
advanced by this angle.
Positive angle:
Negative angle: Further positions are rotated clockwise.
R Radius of pitch circle
N Number of positions (holes) on the pitch circle
FP Feed for positioning on a circular path.
Positioning Linear: Next position is approached linearly at rapid traverse.
Circular: Next position is approached at the programmed feedrate (FP) along a
Parameters
Z0 Height of workpiece surface (abs. or inc.)
X0 Reference position (abs. or inc.)
A0 Start angle (abs.)
Angle of 1st position relative to X axis.
A1 Advance angle (abs.)
after the first hole has been drilled, all further positions are advanced by this angle.
Positive angle: Further positions are rotated counterclockwise.
Negative angle: Further positions are rotated clockwise.
N Number of positions on pitch circle
3-256
Description normal/XY
(without A/B axis)
Further positions are rotated counterclockwise.
circular path.
Description XA
(with A/B axis)
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
3
10.04
Unit
mm
mm
mm
Degr.
Degr.
mm
mm/min
Unit
mm
mm
Degr.
Degr.
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