GSK980MDc Milling CNC System User Manual
68
I Programming
//Coordinate system rotation mode (The coordinate system is rotated)
Format： G17
G18 G68 α_ β_ R_； //Start rotation of a coordinate system
G19
...
...
G69； // Cancel rotation of a coordinate system
G68, G69 are G codes of the group 16, which is a modal G code.
Explanations:
G17 (G18 or G19): Because they only support the rotation on two-dimension plane, select related
plane and perform rotation on it.
α, β: The center of rotation. Absolute coordinate commands of two axes of X, Y and Z axes that
correspond to the specified coordinate plane.
R: The positive value of angular displacement indicates CCW rotation. The state parameter NO.5410
（RIN）determines whether the rotary angle is always an absolute value or specified by a specific G code
(G90/G91). When R is not defined, the value specified by the data parameter NO.5410 is taken as the
angular displacement value.
The minimum input unit of the angular displacement: 0.001deg（IS-B）
Effective data range of angular displacement: -360.000~360.000deg（IS-B）
Absolute angle
If the default initial absolute angle is 0 degree, the first specified absolute angle is equivalent to the
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