SETTING OF COORDINATE SYSTEM D-3
<S type>
The longitudinal axis is the Z-axis; the axis perpendicular to the Z-axis is the X-axis.
The origin of the coordinate systems is taken at the spindle center and the end face of the
workpiece:
The coordinate system for headstock 1:
X0 . . . . .Spindle center
Z0 . . . . .Right end face of the workpiece
The coordinate system for headstock 2:
X0 . . . . .Spindle center
Z0 . . . . .Left end face of the workpiece
Coordinate system plus/minus sign:
<X-axis>
For the X-axis reversed JIS specification machine, positive and negative directions of the
X-axis are reversed from those applied to conventional specification machines.
Positive (+)
Direction in which workpiece diameter increases
Negative (
−
)
Direction in which workpiece diameter
decreases
<Headstock 1 side>
<Headstock 2 side>
X
X
X
X
Z
Z
Z
Z
X
X
Z
Z
<Headstock 1 side>
<Headstock 2 side>
X
Z
Z
X
X0, Z0
X0, Z0
NOTE
