> Date: Mon, 12 Oct 2009 09:40:02 -0600
> From: [email protected]
> To: [email protected]
> Subject: Re: [Emc-developers] hostmot2 stepping folowing error oddity
>
> Chris Morley wrote:
> > I'm having a little problem with a hostmot2 stepper setup.
> > I get following errors that I can't track down a reason for.
> > Interestingly while watching the following error on halmeter
> > I can see that the error is way worse in the negative direction
> > then the positve direction. This is confirmed by the fact the
> > following error is almost always in the negative direction.
> > Can't think of a reason for that.
> > This is while jogging. Going slower makes it worse.
> > If I do go moves in MDI there seems to be less of problem
> > I can move around quite a bit- only occasionally an error.
> > Suggestions
> I'll try to reproduce it too.
>
>
A little more info about this.
a EMC user emailed me about this problem too.
Rick found if he removed the base thread that the following errors went away.
Pncconf always loads a base and servo thread.
if the parport is not used (which was Ricks case) then nothing is added to the
thread.
so I tried this on a test config of mine and low and behold the following error
seems to be
fixed. I have not tested more then moving the axis back and forth.
but with the base period in, the axis follow errors almost immediately - it
made hostmot2
stepping impossible for me to use.
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