HEIDENHAIN CNC Pilot 4290 - Manual (Page 115)

HEIDENHAIN CNC PILOT 4290 103
G112 Geo
Circular arc in lateral surface contour G112/G113-Geo
Direction of rotation: see help graphic
Parameters
Z:
End point
C: End point (end angle)
CY: End angle as linear value (referenced to 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
Q: Selection of intersection – default: 0. End point, if the circular arc
intersects a circular arc.
■ Q=0: Far intersection
■ Q=1: Near intersection
B: Chamfer/rounding arc – transition to the next contour element.
Program the theoretical end point when you enter a chamfer/
rounding arc.
■ No entry in B: tangential transition
■ B=0: no tangential transition
■ B>0: Radius of the rounding arc
■ B<0: Width of chamfer
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”
■ With ”radius”: circular arcs possible only <= 180°
G113 Geo
Hole on lateral surface G310-Geo
Hole with countersinking and thread.
Parameters
Z:
Center (Z position)
C: Center (angle)
CY: Angle as linear value (referenced to unrolled reference diameter)
B: Hole diameter
P: Depth of hole (excluding point)
W: Point angle – default: 180°
R: Countersinking diameter
U: Countersinking depth
Continued
4.5 Geometry Commands