HEIDENHAIN ND 522 - Manual (Page 24)

24 I Operating Instructions
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Scale Factor
The scale factor may be used to scale the part up, or down. All encoder
movements are multiplied by the scale factor. A scale factor of 1.0
creates a part with the exact size as dimensioned on the print.

The numeric keys are used to enter a number greater than zero. The
number range is 0.1000 to 10.000. A negative value may also be
entered.

The scale factor settings will be retained on a power cycle.
 When the scale factor is a value other than 1, the scaling symbol
is shown on the axis display.
 The ON/OFF soft key is used to disable the current scale factors
Mirror
Diameter Axes
Select Diameter Axes to set which axes can be displayed in either
radius, or diameter values. ON indicates that the axis position will be
displayed as a diameter value. When OFF, the Radius/Diameter
feature does not apply. For turning applications see page 65 for the
Radius/Diameter feature.
 Cursor to DIAMETER AXES, and press Enter.
 The cursor will be in the X field. Depending on the parameter used
for that axis press the ON/OFF soft key to turn feature on, or off.

Press Enter.
A scale factor of -1.00 will produce a mirror image of the
part. A part can be both mirrored, and scaled at the same
time.