HEIDENHAIN CNC Pilot 4290 Pilot - Manual (Page 54)

54
D
a
tum shif
t
G121 contour mirror and shift
G121 mirrors and/or shifts the position of roughed and finished part
contours. The contour is mirrored in the X axis and shifted in the Z
direction. The workpiece datum is not affected.
Parameters
H:
Mirroring – default: 0
■ H=0: Contour shift – no mirroring
■ H=1: Contour shift, mirroring, and reversal of the direction of
contour description
Q: Mirroring the coordinate system (direction of the Z axis) - default: 0
■ Q=0: No mirroring
■ Q=1: Mirroring
Z: Shift – default: 0
D: Mirroring XC/XCR (mirroring/shifting the front and rear face
contours) - default: 0
■ D=0: No mirroring/shifting
■ D=1: Mirroring/shifting
• Lateral surface contours are mirrored/shifted like turning
contours.
• Auxiliary contours are not mirrored.
• Please note for Q=1: The coordinate system including the
contour is mirrored – H=1 mirrors only the contour.