On Fri, 17 Sep 2010, Slavko Kocjancic wrote: > Date: Fri, 17 Sep 2010 11:55:51 +0200 > From: Slavko Kocjancic <esla...@gmail.com> > Reply-To: EMC developers <emc-developers@lists.sourceforge.net> > To: EMC developers <emc-developers@lists.sourceforge.net> > Subject: Re: [Emc-developers] StepGen > > Hmm... > > Interesting.. But that line in docu seems taht something is strange here... > > the stepgen outputs one complete Gray cycle (00 -> 01 -> 11 -> 10 -> 00) > for each "step" it takes.
These gray code steps are taken evenly, that is they are equally spaced at a fixed frequency so there is no loss in precision, the step rate is just 4 times faster so you would need to change the scale numbers. When the table output mode is supported, quadrature is an option there and it would be 1X. > > Why that? In what speed that's take? As I understand this will reduce my > precission by factor of 4! > Now I have one step as 0.0075mm but with this wil came 0.03mm - not > acceptable. > > > Na 17.9.2010 11:35, Andy Pugh je pisal: >> On 17 September 2010 10:18, Slavko Kocjancic<esla...@gmail.com> wrote: >> >>> I looking to mesa for $79 and I can live with that but they doesn't >>> support quadrature output as all my drives are not STEP/DIR but are >>> phase drives or quadrature. >> Hostmot2 does Quadrature output, but not any of the phase drives. >> http://www.linuxcnc.org/docview/html//man/man9/hostmot2.9.html >> > > > ------------------------------------------------------------------------------ > Start uncovering the many advantages of virtual appliances > and start using them to simplify application deployment and > accelerate your shift to cloud computing. > http://p.sf.net/sfu/novell-sfdev2dev > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
