4. Motion Control Instructions Example 3 Specify the center of a circle and circular interpolation with T in relative mode Current position (2000, 0), axis parameters: default values, the G codes to be executed: N0 G91 N1 G17 N2 G2 X-2000 Y2000 I0 J2000 T3 After G codes are executed, the path of the circular arc is 3 circles plus thick 1/4 of a circle and the Y/X curve for the whole movement process is shown below: 4000 2000 X Example 4 (0,0) Start point The helical interpolation with the center of a circle specified by XY plane Current position (0, 0), axis parameters: default values, the G codes to be executed:
N0 G17 N1 G91 N2 G2 X200 Y200 Z200 I100 J100 E+10000 E-20000 F1000 Instruction explanation: While G2 is being executed, the axis regards 0 as the start point and axis parameters as the terminal points; produces the circular arc in clockwise direction; finally the motion path is helical curve. The projection on XY plane is an half of the circle with the center of a circle (100,100). 4-198 DVP-MC operating manual Y Terminal point Center of a circle 2000 40