On Thu, May 07, 2009 at 07:00:06AM +1000, Frank Tkalcevic wrote: > Thanks. I used "limit3" and it produced nice looking s-curves. Start up > was fine, but the stop was a bit painful. I use the motion.enable signal to > enable the pid and pwgen on my 5i20. When the spindle is stopped, the motor > would halt. I had to use a combination of "near", "or2", and "not" to > monitor the output of "limit3" and not disable the drive until the commanded > speed was near 0.
I hadn't even considered that part -- it sounds like you found a workable solution, though. cool! did you test limit2 and limit3, or just limit3? I'm not sure whether second-derivative limiting (since command is speed, I guess that makes it a jerk limit) is useful for spindle speed, and it would be nice to hear real-world results. Jeff ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
