Owner's manual

Coordinate Control
Chapter 13
13-15
Figure 13.8
Results of Example 13.5
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10
9
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2
1
Scaled
Original
X
Y
When incremental mode (G91) is active, the control ignores the
programmed centers of scaling. The control performs scaling on the axes
programmed in the G14.1 block, but the scaling moves are referenced from
their c urrent axis positions not
the programmed center of scaling or the
active coordinate zero point.
Important: The center of scaling may be specified in either incremental or
absolute mode (G90/G91) in the G14.1 block. But, unlike other features in
the control, both modes may not be programmed in the same block.
Example 13.6
Scaling with Incremental Mode Active
Program block Comment
N01 G91;
incremental mode
N02 G14.1 X6. Y6. P0.5;
scaleXand Yby .5 (X,Yvaluesignored)
N03 G91 X2 Y2 F100;
axispositioning move
N04 X8.;
feedratemoveX
N05 Y8.;
feedratemoveY
N06 X -8.;
feedratemoveX
N07 Y -8.;
feedratemoveY
N08 G14;
cancelscaling