> > Second future was deceleration (for a settable distance) before hitting 
> > limit switch or software limit, so if you are not careful and jog with 
> > "high speed" all the way to the limit, you have no chance to hit limit with 
> > that speed and cause sudden stop and "mechanical" stress to machine...Can 
> > be this done with customization of hal?
> 
> LinuxCNC simply won't allow itself to hit the limit switch. If it
> knows where the limit switch is. (ie, if it is homed)
> If it doesn't know where the limit switch is, then it has no way to
> decelerate before hitting it.
> 

That's also why I have home offset programmed, but ie. if I jog thoward limit 
with 3000mm/min and "hit" it, what will happen?  machine will immediately stop 
(like hitting e-stop) and pop out message. I think stopping machine with 
"e-stop" like is not very "healthy" for machine at higher speeds (mechanical 
reasons), so that is the reason why I think deceleration would be better...     
                               
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