HEIDENHAIN CNC PILOT 640 - Circular Arc in Front;Rear Face Contour G102-;G103-Geo

DIN/ISO programming | Front/Rear face contours
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HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
Circular arc in front/rear face contour G102-/G103-Geo
G102 and G103 define a circular arc in a front or rear face contour.
Direction of rotation:
G102: In clockwise direction
G103: In counterclockwise direction
Parameter:
X: Final point (polar; diameter value)
C: End angle (polar)
XK: Final point (Cartesian)
YK: Final point (Cartesian)
R: Radius
I: Center (Cartesian)
J: Center (Cartesian)
Q: Intersect. pt. or Final point if the circular arc intersects a
line segment or another circular arc (default: 0)
0: Near point of intersection
1: Far point of intersection
BR: Chamf./round. – defines the transition to the next contour
element
When entering a Chamf./round., program the theoretical end
point.
No entry: Tangential transition
BR = 0: No tangential transition
BR > 0: Rounding radius
BR < 0: Width of chamfer
XM: Center (polar radius; reference: workpiece datum)
CM: Center – polar angle (reference: workpiece datum)
AR: Start angle – tangential angle to rotary axis
AN: Final angle – tangential angle to rotary axis
Programming:
XK, YK: Absolute, incremental, modal or ?
X, C: Absolute, incremental or modal
I, J: Absolute, incremental or ?
XM, CM: Absolute or incremental
ARi: Angle to the previous element
ANi: Angle to the subsequent element
End point must not be the starting point (no full circle).