Siemens SINUMERIK 840DE

Frames
6.7 Programmable mirroring (MIRROR, AMIRROR)
Fundamentals
6-30 Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
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N10 G17 G54 ;Working plane X/Y, workpiece zero
N20 L10 ;Machine first contour, top right
N30 MIRROR X0 ;Mirror X axis (the direction is changed in
;X)
N40 L10 ;Machine second contour, top left
N50 AMIRROR Y0 ;Mirror Y axis (the direction is changed in
;Y)
N60 L10 ;Machine third contour, bottom left
N70 MIRROR Y0 ;MIRROR cancels previous frames. Mirror
;Y axis (the direction is changed in Y)
N80 L10 ;Machine fourth contour, bottom right
N90 MIRROR ;Deactivate mirroring
N100 G0 X300 Y100 M30 ;Retraction, end of program
Example of rotating mirroring
The actual machining is stored as a subprogram and the execution at the respective spindles
is done by means of mirrorings and offsets.