HEIDENHAIN TNC 426 (280 476) - Manual (Page 356)

HEIDENHAIN TNC 426, TNC 430 329
8.8
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AXIS-SPECIFIC SCALING (Cycle 26)
Effect
The SCALING FACTOR 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 scaling factor is shown in the additional status
display.
7 7 7 7 Axis and scaling factor: Enter the coordinate axis/
axes as well as the factor(s) involved in enlarging or
reducing. Enter a positive value up to 99.999 999.
7 7 7 7 Center coordinates: Enter the center of the axis-
specific enlargement or reduction.
The coordinate axes are selected with soft keys.
Cancellation
Program the SCALING FACTOR cycle once again with a scaling factor
of 1 for the same axis.
Example: NC blocks
25 CALL LBL1
26 CYCL DEF 26.0 AXIS-SPEC. SCALING
27 CYCL DEF 26.1 X 1.4 Y 0.6 CCX+15 CCY+20
28 CALL LBL1
X
Y
CC
Before programming, note the following:
Coordinate axes sharing coordinates for arcs must be
enlarged or reduced by the same factor.
You can program each coordinate axis with its own axis-
specific scaling factor.
In addition, you can enter the coordinates of a center for all
scaling factors.
The size of the contour is enlarged or reduced with
reference to the center, and not necessarily (as in Cycle 11
SCALING FACTOR) with reference to the active datum.