On 1 August 2017 at 21:56, Gene Heskett <ghesk...@shentel.net> wrote:
> I could take the filter out, but I'd have to reduce Pgain by at least 75% > just to keep it from hammering the gears in the head from the perceived > errors in the velocity signal caused by a 5% quadrature timing error > wobble in a 4 step repeatable sequence. You could feed the filtered signal to the PID and the unfiltered signal to motion.spindle-revs. Though I am not sure that you want _any_ P in a closed-loop spindle. But then both my machines run the spindle-speed open loop. (both have more than adequate power, though). -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
