On 18 August 2010 20:15, Don Stanley <dstanley1...@gmail.com> wrote: > I am getting a lot of backlash (apparently flexing the Y arm) during > static moves and who knows under load.
I am not sure that is "classical" backlash, and might not be as difficult to deal with. It really seems to me that using a PID with only FF0 and I terms (with a limit on I of say 0.01") ought to be worth a try. Effectively that should pass the position command straight through to the stepgen just like a classic step machine, but on heavy cuts the I should be able to wind the spring out of the system and keep the table in position. -- atp ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
