HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 202)

202
4.16 Zer
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P
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int Shif
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Mirror/shift contour G121
G121 mirrors and/or shifts the blank and finished part contours. The
contour is mirrored at the X axis and shifted in Z direction. The
workpiece zero point is not affected.
G121 allows you to use the blank and finished part descriptions for
front and rear-face machining.
Parameters
H Type of transformation (default: 0)
„ H=0: Contour shift, not mirroring
„ H=1: Contour shift, mirroring and reversing the direction of
the contour description
Q Mirroring the Z axis of the coordinate system (default: 0)
„ Q=0: Do not mirror
„ Q=1: Mirror
Z Shift. Shift coordinate system in Z direction (default: 0)
D Mirror XC/XCR (mirroring and shifting front and rear face
contours) – (default: 0)
„ Q=0: Do not mirror/shift
„ Q=1: Mirror/shift
„ Cylindrical surface contours are mirrored/shifted like
turning contours.
„ Auxiliary contours are not mirrored.
„ Note: Q=1 mirrors the coordinate system and the
contour; H=1 mirrors only the contour.