THREAD <0
This mode is used for the automatic turning of threads. This mode does NOT go beyond 0 when
resetting in Z direction! Attention: Maximum speed is 1200 rpm!
This mode is like „external thread“, except that the Z axis is never moved beyond 0.
Since the stepper motor on the Z-axis requires a certain distance to accelerate to the nominal
feed rate, it needs a „start-up“ to the thread. This path is indicated as „S“ in the graphic above.
The longer the higher the feedrate and the higher the spindle speed, the longer the path will be.
If the zero point is set in this mode directly at the workpiece edge, the rst threads become
very narrow, and only at the end of the acceleration path does the thread pitch correspond to
the set nominal feedrate value F. The rst thread pitch is then set at the end of the acceleration
path. It may therefore be necessary to remove the rst threads after the thread is ready.
This mode does not go beyond 0 when pulling back in Z-direction and thus prevents collisions
with the tailstock.
74
To Next Page
Loading...