Here is a plot with motion.spindle-speed-in http://electronicsam.com/images/KandT/testing/robthreading/latest/robnewandspindlein.png
sam On 12/11/2016 03:52 PM, Robert Ellenberg wrote: > Sam, one last thing, is it possible to put the spindle-speed-in pin on a > halscope channel? I'd like to see what the spindle velocity is when it > transitions out of accel sync. > > On Sun, Dec 11, 2016 at 4:44 PM Robert Ellenberg <rwe...@gmail.com> wrote: > >> Thanks for giving it a spin! >> >> I am still getting the error about the spindle going too fast.. You can >> see the threading is happening at 19.12 ipm and the axis max vel is >> 30ipm. I tried a similar config and got the same result (could be both >> configs have some odd issue we have not figured out.) >> >> http://electronicsam.com/images/KandT/testing/robthreading/latest/newthreadingfix2Error.png >> >> >> There's definitely an edge case there I didn't account for. I'll keep >> working on it and see if I can isolate a test case to reproduce. >> >> Current 2.7 behavior with the blip at the beginning (again - didn't see >> this with your latest push) >> >> http://electronicsam.com/images/KandT/testing/robthreading/latest/current2.png >> >> >> Another thing I'm noticing is that my modified position-error calculation >> seems to perform worse with the stock-like velocity estimate (in terms of >> steady-state error). I'll play with a few approaches and see if I can get >> something better than stock. >> >> Sam, do you do any kind of filtering / averaging in your spindle-speed >> input? It would be interesting to see the effect if so. I suspect that the >> velocity signal could be filtered significantly without impacting the >> position tracking performance. >> >> Best, >> Rob >> > ------------------------------------------------------------------------------ > Developer Access Program for Intel Xeon Phi Processors > Access to Intel Xeon Phi processor-based developer platforms. > With one year of Intel Parallel Studio XE. > Training and support from Colfax. > Order your platform today.http://sdm.link/xeonphi > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
