Hi,
its help but i cant always be sure all nc file customer use will have all axess movment
in my pp i can control and add,but in other??
No I don't think you can stop it by programming Mach, I suspect its a shared issue between Machs trajectory planner and your motion controller.
The only time I have observed it is when an un-commanded or referenced axis's Direction signal will change state, but even if it does change state who cares,
the axis will not shift UNLESS there is also a Step signal.
What I found was that Machs output, being essentially numeric is active high. If however your motion controller output or BoB output is naturally active
low then an un-commanded move MAY OCCASIONALLY STILL experience a change of state. I found that if I reversed the active high/active low circuit arrangement without reversing
the direction of the motor that the natural state of the motion controller/BoB output matches the un-commanded state of Mach the issue largely disappeared.
Craig