CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: EMC:  why do I h ave so many problems?

Posted by Eric Keller
on 2001-10-13 14:25:36 UTC
> Would you consider the current real-time linux/EMC to be stable enough to
be
> viable in a commercial environment?
>
> I can handle an occasional crash but not a system that would lock up every
> time I used it.
>
> Oh, another thing on my mind... is the stg2 driver stable? (i.e.
> being used to make parts)

Real Time linux is definitely being used commercially. It does take some
work to keep it stable, but not nearly as much work as Windows doing
similar kinds of work. If you have a computer that only does one thing, it
is
a lot easier to keep it stable.

EMC is definitly being used to make parts. The STG driver is so simple that
it is not really part of the consideration. It is definitly stable.

Running step and direction seems a little scarier to me, since it is much
more
timing dependent at a much lower level. If you get it to work, it should
work
well.

The only thing thad does not seem to be under total control in RTLinux seems
to be the video hardware. Some boards seem to cause long delays. Matrox
is one that I remember, some of the new fancy ones too.

None of this answers the question "why do I have so many problems." which
is a brother of the question "why ain't nothin easy?" They didn't teach the
answer
to either of those questions in any of the schools I have been in, from
kindergarden
to engineering school to military to grad school.
Eric

Discussion Thread

Les Watts 2001-10-13 08:37:39 UTC Re: [CAD_CAM_EDM_DRO] Re: EMC:  why do I h ave so many problems? Eric Keller 2001-10-13 14:25:36 UTC Re: [CAD_CAM_EDM_DRO] Re: EMC:  why do I h ave so many problems?