
16.COORDINATE SYSTEM CONVERSION FUNCTION NC FUNCTIONS B-63322EN/03
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16.3 SCALING
A programmed figure can be magnified or reduced (scaling).
Two types of scaling are supported.
Unless specified in the program, the magnification rate specified in the
parameter is applied.
One type applies the same rate of magnification to all axes (X, Y, and
Z). The other type applies a different rate of magnification to each axis.
Which to use is selected according to the setting of the XSC parameter
(bit 4 of parameter No. 7611).
- Scaling along all axes at the same rate of magnification
For a command in scaling mode, the following command specifies
scaling with the center at a point specified by X_Y_Z_ at the scaling
magnification rates specified in P_.
Format Meaning of command
G51 X_Y_Z_P_ ; Scaling start
: Scaling is effective.
: (Scaling mode)
G50 ; Scaling cancel
X_Y_Z_ : Absolute command for center
coordinate value of scaling
P_ : Scaling magnification
Y
X
P
4
P
4’
P
1
P
1’
P
3’
P
2’
P
2
P
3
P
0
P
0
: Scaling center
P
1
- P
4
: Figures of machining program
P
1’
- P
4’
: Figures after scaling
O