On Tue, 11 Aug 2015, andy pugh wrote: > Date: Tue, 11 Aug 2015 01:07:31 +0100 > From: andy pugh <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "[email protected]" <[email protected]>, > "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: Re: [Emc-users] Min spindle encoder resolution for mill rigid > tapping? > > On 11 August 2015 at 00:38, David Bagby <[email protected]> wrote: >> I've looked but not found a spec for the required encoder resolution. > > I guess it will depend on machine rigidity, i.e. how far can you turn > a tap with no head movement before it damages the thread or breaks the > tap. >
With 1/4-20 and 48 counts/turn thats only about a mil per Z step so might be OK. Also I guess you can use position interpolation with the software encoder module so that might smooth things out as well. I'm not sure how well the position interpolator guesses position during reversals though... > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
