
16. COORDINATE SYSTEM
CONVERSION B–63682EN/01
NC FUNCTION
116
Scaling can be commanded to figures commanded in the machining
programs.
When each axis is scaling of the same magnification
G51 X_ Y_ P_ ;
X_Y_ : Absolute command of
center coordinate value of
scaling
P_ : Magnification of scaling
G50 ;
Format Sign explanation
Scaling start
Scaling is effective.
(Scaling mode)
Scaling cancellation
By this command, scaling of the magnification specified by P is
commanded with the point commanded by X, Y as its center. G50 cancels
to scaling mode.
G50 : Scaling mode cancel
G51 : Scaling mode command
Commandable magnification is as follows :
0.00001 - 9.99999 times or 0.001 - 999.999
Y
X
P
4
P
4
l
P
1
P
1
l
P
3
l
P
2
l
P
2
P
3
P
0
P
1
- P
4
: Pattern of machining program
P
1
- P
4
: Pattern after scaling
P
0
: Center of scaling
0
If P was not commanded, the magnification set by parameters is applied.
When X, Y are omitted, the point where G51 was commanded becomes
the center of scaling.
Scaling cannot be done to offset amounts such as tool length
compensation, cutter radius compensation.
Scaling
down to 1/2
16.2
SCALING (G50, G51)
Format