HEIDENHAIN TNC 128 (77184x-02) - Manual (Page 456)

Cycles: Coordinate Transformations
18.5 MIRRORING (Cycle 8)
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TNC 128 | User's Manual HEIDENHAIN Conversational Programming | 5/2014
18.5 MIRRORING (Cycle 8)
Effect
The TNC can machine the mirror image of a contour in the working
plane.
The mirroring cycle becomes effective as soon as it is defined in
the program. It is also effective in the Positioning with MDI mode
of operation. The active mirrored axes are shown in the additional
status display.
If you mirror only one axis, the machining direction of the tool is
reversed (except in SL cycles).
If you mirror two axes, the machining direction remains the
same.
The result of the mirroring depends on the location of the datum:
If the datum lies on the contour to be mirrored, the element
simply flips over.
If the datum lies outside the contour to be mirrored, the
element also "jumps" to another location.
Resetting
Program the MIRROR IMAGE cycle once again with
NO ENT.
Please note while programming:
If you mirror only one axis, the machining direction
is reversed during contour milling. If the machining
direction is defined in the cycle, it is retained.
Cycle parameters
Mirrored axis?: Enter the axis to be mirrored. You
can mirror all axes except for the spindle axis—
including rotary axes—with the exception of the
spindle axis and its associated auxiliary axis. You can
enter up to three axes. Input range: Up to three NC
axes
X, Y, Z, U, V, W, A, B, C
NC blocks
79 CYCL DEF 8.0 MIRROR IMAGE
80 CYCL DEF 8.1 X Y Z