HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 180)

180
4.1
1
Lat
er
al Surf
ace Cont
ours
Circular arc in lateral surface contour G112-/
G113-Geo
G112/G113 defines a circular arc in a lateral-surface contour. Direction
of rotation: See help graphic
Parameters
Z End point
C End point (end angle)
CY End point as linear value; reference: unrolled reference
diameter
R Radius
K Center point in Z direction
W Angle of the center point
J Angle of the center point as a linear value
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 circular arc intersects a
line segment or another circular arc (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
„ K, J: Absolute or incremental
„ Program either Z–C or Z–CY, and either K–W or K–J
„ Program either center or radius
„ For radius: Only arcs <= 180° are possible