2013/4/10 Tomaz T. <tomaz_...@hotmail.com> > The whole point is that I don't have any feedback from steppers at this > stage, and as I said, the "cheapest" solution would be to simply change the > existing one with the one with closed loop "future" (and also drivers). So > the basic idea might be to use In-Position signal (output) from stepper > driver and when this goes fault, it triggers "following error" in linuxcnc. > Could this work? >
So why don't You put encoders on stepper motors and link encoder position to axis.n.motor-pos-fb pin and let LinuxCNC track actual motor position and it definitely will trigger following error, once it has been reached. This way there are no fancy stepper drives and motors are required. > Anyone using this stepper system from kelinginc? > > > http://www.automationtechnologiesinc.com/products-page/nema23-closed-loop-stepper-motor-system-hybrid-servo-kit/hybrid-servo-drive-kl-5080h No tuning of feedback loop? Well, then I do not see, how does this system achieve its goal and correct for motor's position error. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
