4. Motion Control Instructions N0 G17 N1 G3 X100 Y100 Z100 I50 J50 T2 Instruction explanation: Since the variation of Z axis is 100, the motion path is helical curve and the projection on XY plane is a full circle. If there is no variation for Z axis, the motion path is the circular arc on XY plane with the center (50,50) and the arc length of 2.5 times the circumference of a full circle. Example 5 The helical interpolation with the specified radius The G codes to be executed: N0 G0 X0 Y0 Z0 N1 G3 X200 Y200 Z200 R-200 T2 N2 G0 X0 Y0 Z0 N3 G3 X200 Y200 Z200 R200 Instruction explanation:
In this example, T is set in G2 code in N1 row and so the motion path for N1 row of the instruction is the helical curve as the right thick curve in the figure above. Return to the origin after G0 in N2 row is executed and then execute the N3 row of instruction. Since the T parameter is omitted in this row, the T in last row is taken as reference. And the motion path is also the helical curve. 4-206 DVP-MC operating manual