RE: [CAD_CAM_EDM_DRO] Steppers "thunking"

Are you running a parallel port to Driver interface board? Quite possible
that the DELL isn't producing adequate drive signals.

John Dammeyer

> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Ackley,
> Ray (R.J.)
> Sent: Friday, October 13, 2006 9:40 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: RE: [CAD_CAM_EDM_DRO] Steppers "thunking"
>
>
> Eek. Yes, I'm running Mach3. I did the driver test and it's the
> response isn't perfect. It's not totally messed up, but it's not as
> good as my desktop. It's on a new laptop (Dell D620, dual
> core 1.6ghz,
> 1 gig ram, etc). Does the timing sound like it might be the cause?
>
>
>
> Thanks,
>
> Ray
>
>
>
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Lester Caine
> Sent: Friday, October 13, 2006 12:26 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] Steppers "thunking"
>
>
>
> Ackley, Ray (R.J.) wrote:
>
> > I just got my Taig rig up and running last night (w/Xylotex 3-axis
> > driver) and I noticed my steppers "thunk" every few inches
> or so. I'm
> > pretty sure this is them missing a step or two. I'm not making
> anything
> > complicated yet though (mostly straight lines for testing)
> so I can't
> > tell for certain.
> >
> > I'm pretty certain my drive voltage is set correctly for
> the steppers.
> > Is this more likely a problem with the drive voltage or maybe the
> power
> > supply itself?
>
> What are you driving them from?
> That sounds like the usual problem when Mach3 is not running
> cleanly ;)
>
> --
> Lester Caine - G8HFL
> -----------------------------
> L.S.Caine Electronic Services - http://home.lsces.co.uk
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