Chapter 11 Motion Control Instructions 
11-277 
 Example 1 
  Specify the center of a circle and circular interpolation in absolute mode 
Current position (4000, 2000), axis parameters: default values, the G codes to be executed are: 
N0 G90 
N1 G17 
N2 G3 X1000 Y3000 I-2000 J-1000 
After G codes are executed, the Y/X curve for the whole movement process is shown below: 
 
1000
X
Y
1000
2000
3000
2000
4000
I=-2000
J=-1000
(0,0)
 
 Example 2  
  Specify the center of a circle and circular interpolation in relative mode 
Current position (4000, 2000), axis parameters: default values, the G codes to be executed are: 
N0 G91 
N1 G17 
N2 G3 X-3000 Y1000 I-2000 J-1000 
After G codes are executed, the Y/X curve for the whole movement process is shown below: