2009/9/26 Ray Henry <rehe...@copper.net> > I found the exact same thing with my prototype Sherline setup. Those > neat little laser cut handwheels that Sherline puts right on the motors > would show you the microstep in the wrong direction. Matt Shaver added > in the step and direction delays and that fixed it for Sherline's > driver. After that I ran the same setup with an early Xylotex board and > had to change the delays to fix it as well. > > One step in the wrong direction after each direction change should > cancel out though and not show an accumulated error in one direction. > > Rayh > > I've tried all kinds of setups with the step timing, but I'll try to increase the Direction time to see if it changes. The only thing I really haven't tested is another encoder/servo, I'll try that like I wrote earlier. And see if the tuning app makes the same error.
I got an answer from Tom at Rutex USA and he says that 2us would be fine for the step time. I might change drivers to see if there's a difference. --S ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
