Operation Manual

HEIDENHAIN CNC PILOT 4290 179
4.11 Lateral Surface Contours
4.11 Lateral Surface Contours
Starting point of lateral surface contour G110-Geo
G110 defines the starting point of a lateral-surface contour.
Line segment in a lateral surface contour G111-Geo
G111 defines a line segment in a lateral-surface contour.
Parameters
Z Starting point
C Starting point (starting angle)
CY Starting point as linear value; reference: unrolled reference
diameter
Program either Z, C or Z, CY.
Parameters
Z End point
C End point (end angle)
CY End point as linear value; reference: unrolled reference
diameter
A Angle to Z axis
B Chamfer/rounding. Defines the transition to the next contour
element. When entering a chamfer/rounding, program the
theoretical end point.
 No entry: Tangential transition
 B=0: No tangential transition
 B>0: Rounding radius
 B<0: Chamfer width
Q Point of intersection. End point if the line segment intersects
a line (default: 0):
 Q=0: Near point of intersection
 Q=1: Far point of intersection
Programming
 Z, CY: Absolute, incremental, modal or “?”
 C: Absolute, incremental or modal
 Program either Z–C or Z–CY