Re: EMC steps/rev calibration-SOLVED

My pleasure:

http://www.linuxcnc.org/handbook/faq/faq/x524.html

also useful

http://www.linuxcnc.org/handbook/faq/faq/book1.html

While I have now properly set my INPUT_SCALE value, I am still
fighting this slow down by persistent processes. I've seen several
posts from others with the same behavior.

I've put a lot of work into getting EMC running. I hope doesn't turn
out to be so flakey it's not useable.

r

--- In CAD_CAM_EDM_DRO@y..., "studleylee" <indigo_red@q...> wrote:
> Hi,
> Could you point me to the FAQ's mentioned, I'd like to read them
also.
> Thanks,
> Lee
>
> --- In CAD_CAM_EDM_DRO@y..., "nahydro" <r_fl_z@h...> wrote:
> . I atributed this behavior to the changes I'd been
> > making in INPUT_SCALE. I've since located a FAQ or two that
detail
> > this behavior. Knowing about this behavior in advance would have
> > saved me 50 hours of debug time...grrrrr.
> >
> > After 3 EMC reinstallations, and dozens of hard shutdowns due to
a
> > hung system, all is now forgiven now that it's running fine :)
> >
> > Thanks to all,
> >
> > r
> >
> >
> > --- In CAD_CAM_EDM_DRO@y..., "Tim Goldstein" <timg@k...> wrote:
> > > I think you have the wrong value. Your encoders are likely 500
> line
> > > which gives you 2000 counts per rev. So, you really need 10,000
> as
> > your
> > > factor.
> > >
> > > Tim
> > > [Denver, CO]
> > >
> > > > Alan:
> > > >
> > > > Thanks for trying. I wish it was as simple as mis reading
the
> > jumper
> > > > setting. I've tried all four positions, and am convinced I
> have
> > that
> > > > part right.
> > > >
> > > > I am now running the G340 at 1x, 500 cpr encoder, and 5 tpi
> > > > screw...which should make INPUT_SCALE 500*5 or 2500. I am
using
> > > > steppermod. A one inch jog results in the motor turning
about
> > 1.25
> > > > revs instead of 5.