HEIDENHAIN TNC 360 ISO Programming - Manual (Page 182)

8-29
8 Cycles
TNC 360
Fig. 8.35: Examples of coordinate transformations
8.4 Cycles for Coordinate Transformations
Coordinate transformations enable a programmed
contour to be changed in its position, orientation or
size. A contour can be:
• shifted (DATUM SHIFT cycles G53/G54)
• mirrored (MIRROR IMAGE cycle G28)
• rotated (ROTATION cycle G73)
• made smaller or larger
(SCALING FACTOR cycle G72)
The original contour must be identified as a subpro-
gram or program section.
Activation of coordinate transformations
Immediate activation: A coordinate transformation
becomes effective as soon as it is defined (it does
not have to be called). The transformation remains
effective until it is changed or cancelled.
To cancel a coordinate transformation:
• Define cycle for basic behavior with new values,
for example scaling factor 1.
• Execute miscellaneous function M02, M30 or
block N 9999 % ... (depending on machine
parameters).
• Select a new program.