Coordinate Transformation Cycles - HEIDENHAIN TNC 426 B User Manual

8.7 Coordinate Transformation
Cycles
Once a contour has been programmed, you can position it on the
workpiece at various locations and in different sizes through the
use of coordinate transformations. The TNC provides the following

coordinate transformation cycles:

Cycle
7 DATUM SHIFT
For shifting contours directly within the program
or with datum tables
8 MIRROR IMAGE
For mirroring contours
10 ROTATION
For rotating contours in the working plane
11 SCALING FACTOR
For increasing or reducing the size of contours
26 AXIS-SPECIFIC SCALING
For increasing or reducing the size of contours
with axis-specific scaling factors
19 WORKING PLANE
For executing machining operations in a tilted
coordinate system on machines with swivel heads
and/or tilting tables
Effect of coordinate transformations
A coordinate transformation becomes effective as soon as it is
defined — it is not called. It remains in effect until it is changed or
canceled.
To cancel coordinate transformations:
Define cycles for basic behavior with a new value, such as scaling
factor 1.0
Execute a miscellaneous function M02, M30, or an END PGM
block (depending on machine parameter 7300)
Select a new program
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