Re: following error

["Ed Okerson" <eokerson-at-fw.telenic.net>]

How would changing the INPUT_SCALE on the Z axis affect that?

Ed Okerson

----- Original Message -----
From: "Darrell" <dgehlsen-at-earthlink.net>
To: "Multiple recipients of list" <emc-at-nist.gov>
Sent: Wednesday, November 14, 2001 10:28 AM
Subject: Re: following error


>
> It could be that you gave a move that required Z to retract before an X or
Y
> move.
> Darrell
>
> http://www.machinemaster.com
>
>
> ----- Original Message -----
> From: "Ed Okerson" <eokerson-at-fw.telenic.net>
> To: "Multiple recipients of list" <emc-at-nist.gov>
> Sent: Tuesday, November 13, 2001 8:46 PM
> Subject: Re: following error
>
>
> >
> > I don't understand why, but this did in fact fix the problem!  Thanks.
Now
> > that I have constructed a complicated plotter, I guess it is time to
start
> > working on how to make a Z axis with a cutting tool.
> >
> > Ed Okerson
> >
> > ----- Original Message -----
> > From: "Darrell" <dgehlsen-at-earthlink.net>
> > To: "Multiple recipients of list" <emc-at-nist.gov>
> > Sent: Tuesday, November 13, 2001 6:30 PM
> > Subject: Re: following error
> >
> >
> > >
> > > Set the axis 2 parameters the same as you have in axis 0 & 1 until you
> > have
> > > something connected. Then after you have Z connected, play with the
> > settings.
> > > Darrell
> > >
> > > http://www.machinemaster.com
> > >
> > >
> > > ----- Original Message -----
> > > From: "Ed Okerson" <eokerson-at-fw.telenic.net>
> > > To: "Multiple recipients of list" <emc-at-nist.gov>
> > > Sent: Tuesday, November 13, 2001 10:33 AM
> > > Subject: Re: following error
> > >
> > >
> > > >
> > > > You are correct, I changed the INPUT_SCALE values to make my X and Y
> > axis
> > > > move 1 inch when commanded.  But isn't axis 2 the Z axis?  That is
the
> > way
> > > > it is labeled in the GUI.  I have not made any changes to the Z axis
> > scales
> > > > as I don't actually have that part of the machine built yet!  I was
> > simply
> > > > trying to get the X-Y part moving before I continued any further.
> > > >
> > > > Ed Okerson
> > > >
> > > > ----- Original Message -----
> > > > From: "John Sheahan" <jrsheahan-at-optushome.com.au>
> > > > To: "Multiple recipients of list" <emc-at-nist.gov>
> > > > Sent: Tuesday, November 13, 2001 2:12 AM
> > > > Subject: Re: following error
> > > >
> > > >
> > > > >
> > > > > Ed
> > > > > it means the internal PID-like algorithm EMC uses
> > > > > has accumulated an error bigger than the error limit.
> > > > >
> > > > > You have probably (rightfully) changed the scale values to
> > > > > match your hardware,
> > > > > the gain and error terms will need tweaking
> > > > > to reflect that.
> > > > >
> > > > > There's a page in the handbook regarding freqmod tuning, that
> > > > > may give you some hints here.
> > > > >
> > > > > regards, john
> > > > >
> > > > >
> > > > > On Mon, Nov 12, 2001 at 08:17:53PM -0500, Ed Okerson wrote:
> > > > > >
> > > > > > Well, I got EMC to control the steppers. :)  When running the
> > > > > CDS.ngc that
> > > > > > comes with it, all seems fine for a while.  It runs down the
first
> > > > > side of
> > > > > > the circle and comes across the bottom, then pulls the tool up
and
> > > > > pops up
> > > > > > an error box that says "Axis 2 following error".  What the heck
> > > > > doesthat
> > > > > > mean?  I have no encoders hooked up to anything, and am running
> > > > > > steppermod.o.  Any suggestions?
> > > > > >
> > > > > > Ed Okerson
> > > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>