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GSK980TDi Turning CNC System User Manual
62
Ⅰ
Programming
3.6 Ellipse Interpolation G6.2, G6.3
Command format:
G6.2
X(U)__ Z(W)__ A__ B__ Q__
G6.3
Command function:
G6.2 motion path is the CW(rear tool post coordinates)/CCW(front tool
post coordinates) ellipse.
G6.3 motion path is the CCW(rear tool post coordinates)/CW(front tool
post coordinates) ellipse.
Command path:
Fig. 3-15
G6.2 path sketch map
Fig. 3-16
G6.3 path sketch map
Explanation:
A: Length of ellipse’s long radius (0<A<= 99999.999mm, no sign )
B: Length of ellipse’s short radius (0<B<= 99999.999mm, no sign )
Q: angle between the long axis and Z coordinate system of ellipse (CCW 0-99999999,
unit: 0.001°)
Ellipse direction:
defined by that of G6.2/G6.3, they are the reverse in the front and rear tool
post coordinates.
Fig. 3-17
Front tool post coordinate system
Fig. 3-18
Rear tool post coordinate system
X
Z
Z
X
