On Tuesday, July 26, 2011 09:45:35 AM yann jautard did opine:
> Andy Pugh wrote:
> > On 26 July 2011 11:27, yann jautard <[email protected]> wrote:
> >> No one has any idea on this ?
> >
> > Not many. Is it a servo or stepper machine? Does the head move to a
> > new position in a controlled way (like a programmed move) or shoot off
> > to the end stop?
>
> It's a stepper machine, without position feedback, controlled by
> parallel port.
>
> When pressing stop while the tool is moving, it goes to a new position
> in appearance in a controlled way, at the same speed it was moving
> before pressing stop.
> I tested several time, the position it goes seem to be the same at each
> try, but I can't let it go where it want because the trajectory of the
> tool at that moment results in a tool break.
> So I must stop it with Estop before the end of the move, so I can't be
> really sure the final position is always the same, and I'm not sure if
> it is a position corresponding to some point in the program or not. But
> seems to go to the final position it should reach at the end of the
> program.
>
> I should test again for this, but the machine is in production now.
>
I believe the first thing I'd do is update if you have the original 2.4.0
install. ISTR that is about the time frame when I cut 1/3rd of a hold-down
bolts side away, then got into a clamp, finally stalled the spindle and
broke a 1/4 solid carbide bit in my machine. I don't have a separate
estop, and it did that when I hit the esc key. Repeatedly.
If you have backups of the revelent home directories, your configs and
nc_files could be pulled back in and life continues. I back those up with
Amanda every night. Generally those 2 directory's would fit on a USB Key
for safe keeping while doing a fresh install.
Cheers, gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If people drank ink instead of Schlitz, they'd be better off.
-- Edward E. Hippensteel
[What brand of ink? Ed.]
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