I'm using Mach3 and have a question.  Is it typical for the machine to halt a secound or two after the space bar is pressed or the cycle stop button clicked on with the mouse.  Both seem to act exactly the same.  This happens every time.  In other words if I really wanted to stop last secound it might be to late as it keeps feeding some after the switch is activated.  Any idea?

Thanks
BONE

This is a limitation of the software It can be fixed but only with hardware like the Grex.. The problem comes from the CV buffer and the moves that are stored in the ring zero buffer. The buffer must be drained to stop the machine.

There is a place where you can set the buffer to be a little shorter but you will giveup some of the CV..
Hope that helps
Brian

That add's an equation to things don't it.  Make sure all the offsets are correct.   It's just that there has been times that I couldn't hardly get to the button in times as it is and I've been working in job shops for ever.  No answer to this problem with windows and is this a common problem on other controls running through windows?  This is why I was hoping the single step worked a little better.  It could at least be a prodictable way of telling where it's going to stop.

Thanks much for the help,
BONE

shuttle mode is what I use in Mach 3 you can have an MPG set up so the more you crank the MPG the more it will run the program also the faster you turn the MPG the faster the program runs (Up to the feedrate that is programed)

hope that is a little better for you
Brian

In other words if I really wanted to stop last secound it might be to late as it keeps feeding some after the switch is activated.  Any idea?

For emergencies you should really have a physical E-Stop button connected via the charge pump if your breakout supports it, as soon as that is hit all should stop instantly. You will of course have lost reference but at least your machine will be safe and you can then reference and start again from where you left off.
Hood