Jon, Am 07.12.2012 um 04:37 schrieb Jon Elson:
> Michael Haberler wrote: >> sorry for what maybe sounds like a dumb question, but having read the >> Proctor/Shackleford paper on the influence of jitter on steppers which >> basically say: "all it causes is a loss of torque on the order of 10%" >> (given the figures at the time the paper was written), >> > That's a bit dismissive of Fred and/or Will, a major RT stutter will > cause more > than a 10% loss of torque. this is the way I understood the gist of the paper, and I found that a quite interesting summary not being a native speaker: can you fill me in what you consider "dismissive" about that? > I did an experiment a LONG time ago when I > developed the first hardware step generator for EMC(1) in 2001. I was able > to improve the top speed of a Sherline mill by a factor of about 5 by > creating much smoother step pulse trains than the software step generator. > I don't know the latency that machine had, but it was not terrible. what I'd be interested in: was that a consequence of the capability to generate more continuous frequencies or a consequence of less jitter (which was the point in the original question)? -m > > Jon > > ------------------------------------------------------------------------------ > LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial > Remotely access PCs and mobile devices and provide instant support > Improve your efficiency, and focus on delivering more value-add services > Discover what IT Professionals Know. Rescue delivers > http://p.sf.net/sfu/logmein_12329d2d > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
