Thanks John, I'll check the EMC manual. The machine is pretty new and there does not seem to be any backlash.
> ------------------------------ > > Message: 7 > Date: Thu, 29 Sep 2011 06:03:48 -0500 > From: John Thornton <bjt...@gmail.com> > Subject: Re: [Emc-users] calibrating stepper motor cnc > To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > Message-ID: <4e845094.1080...@gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > There is some good info in the EMC manual on testing for lost steps. > Have you checked for backlash? > > John > > On 9/29/2011 12:10 AM, Martin Patton wrote: > > Hi EMC users, > > I have EMC running on an old pc, latency number about 25000. I got an > > occasional real time error with latency number set at 22000. > > I drew a part in CamBam, generated some g-code and cut a part. The > part > > looked right but the caliper says every dimension cut a little small. A > > circle pocket drawn 1.50 diameter cut about 1.42 in diameter, The tool > > diameter matched the tool specified in the cad program. Is there a good > post > > on calibrating for a stepper motor machine? > > Thanks, > > Marty > > > ------------------------------------------------------------------------------ > > All the data continuously generated in your IT infrastructure contains a > > definitive record of customers, application performance, security > > threats, fraudulent activity and more. Splunk takes this data and makes > > sense of it. Business sense. IT sense. Common sense. > > http://p.sf.net/sfu/splunk-d2dcopy1 > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > ------------------------------ > > > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure contains a > definitive record of customers, application performance, security > threats, fraudulent activity and more. Splunk takes this data and makes > sense of it. Business sense. IT sense. Common sense. > http://p.sf.net/sfu/splunk-d2dcopy1 > > ------------------------------ > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > End of Emc-users Digest, Vol 65, Issue 66 > ***************************************** > ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
