On Tuesday 01 December 2020 16:43:49 andy pugh wrote: > On Tue, 1 Dec 2020 at 21:40, Chris Albertson <albertson.ch...@gmail.com> wrote: > > The next step is to see why PID is not very good at this. It is > > reactive and can't plan ahead. For example, it can't say "I am > > only a few floors away from my target I'd better apply the brakes. > > That's exactly what the D term _can_ do.
Does it need blown up in scale like the P term is? So instead of the .0015 we might using with a stepper whose P term might be 20, or less but is 250000 here, so D needs to be scaled similarly? I'll give it a shot after dinner. Set it to 1 and keep adding zeros. 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
