HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 513)

HEIDENHAIN MANUALplus 620, CNC PILOT 640 513
6.3 Cont
ours in the YZ plane
6.3 Contours in the YZ plane
Starting point of contour in YZ plane G180-Geo
G180 defines the starting point of a contour in the YZ plane.
Line segment in YZ plane G181-Geo
G181 defines a line segment in a contour of the YZ plane.
Parameters
Y
Starting point of contour
Z Starting point of contour
PZ Starting point of contour (polar radius)
W Starting point of contour (polar angle)
Parameters
Y
End point
Z End point
AN Angle to positive Z axis
Q Point of intersection. End point if the line segment intersects a
circular arc (default: 0):
 0: Near point of intersection
 1: Far point of intersection
BR Chamfer/rounding. Defines the transition to the next contour
element. When entering a chamfer/rounding, program the
theoretical end point.
 No entry: Tangential transition
 BR=0: No tangential transition
 BR>0: Radius of rounding
 BR<0: Width of chamfer
PZ End point (polar radius; reference: workpiece zero point)
W End point (polar angle; reference: workpiece zero point)
AR Angle to positive Z axis (AR corresponds to AN)
R Length (polar radius; reference: last contour point)
Programming
 Y, Z: Absolute, incremental, modal or "?"
 ANi: Angle to the subsequent element
 ARi: Angle to the previous element