On Tuesday 24 October 2017 08:14:25 andy pugh wrote: > On 24 October 2017 at 12:10, Gene Heskett <[email protected]> wrote: > > Correct, except encoder.nn.velocity is fed thru a last 4 edges > > averager to remove some of the noise in the encoders output. That > > unforch also affects the spindle to Z phaseing in the G33.1 backout. > > You might want to filter the velociity, but I see no point in > filtering the position, which is what G33.1 uses > I'll have to dbl-check that, its another error causer if not so, and it would solve a problem with the turnaround at the bottom phasing of a peck cycle wrapped around G33.1.
> You could also try using the DPLL timer to take jitter out of your > encoder sampling. That's a pretty simple setting with the right > firmware (one that ends in "D" for DPLL) The 7i90HD has that, and I've enabled it on the pi driving the sheldon, but I do not believe the 5i25 has that feature. If so, it would show up as a pin IIRC. But nothing there. Stuff to check, thanks Andy. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
