Siemens SINUMERIK 840D Operation/Programming Manual page 197

3
10.04
L Length of line
α1 Starting angle to X axis
Angle to preceding element
α2
Tangential transition: α2=0
Transition to FS: Chamfer as transition element to next contour element
following R: Radius as transition element to next contour element
element
Additional Any additional command in G code format
command
Parameters
Direction of
rotation
R Radius of circle
Cartesian:
X End point in the X direction (abs. or inc.)
Incremental dimensions: The plus/minus sign is evaluated.
Y End point in the Y direction (abs. or inc.)
Incremental dimensions: The plus/minus sign is evaluated.
I Circle center point in X direction (abs. or inc.)
Incremental dimensions: The plus/minus sign is evaluated.
J Circle center point in Y direction (abs. or inc.)
Incremental dimensions: The plus/minus sign is evaluated.
α1 Starting angle to X axis
Angle to preceding element
α2
Tangential transition: α2=0
End angle to X axis
β1
Angle of aperture of circle
β2
Polar:
L1 abs: distance between pole and end point
inc: distance between final point and end point
Incremental dimensions: The plus/minus sign is evaluated.
ϕ1 abs: polar angle between pole and end point
inc: polar angle between final point and end point
Incremental dimensions: The plus/minus sign is evaluated.
abs: distance between pole and center of circle
L2
inc: distance between final point and center of circle
Incremental dimensions: The plus/minus sign is evaluated.
abs: polar angle between pole and center of circle
ϕ2
inc: polar angle between final point and center of circle
Incremental dimensions: The plus/minus sign is evaluated.
Starting angle to X axis
α1
Angle to preceding element
α2
Tangential transition: α2=0
End angle to X axis
β1
Angle of aperture of circle
β2
Transition to FS: Chamfer as transition element to next contour element
following R: Radius as transition element to next contour element
element
Additional Any additional command in G code format
command
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
Description for contour element "circle"
Clockwise rotation
Counterclockwise rotation
Programming with ShopMill
3.5 Contour milling
3
mm
Degr.
Degr.
mm
mm
Unit
mm
mm
mm
mm
mm
Degr.
Degr.
Degr.
Degr.
mm
mm
Degr.
Degr.
mm
mm
Degr.
Degr.
Degr.
Degr.
Degr.
Degr.
mm
mm
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