Igor Chudov wrote: > On Thu, Feb 3, 2011 at 7:16 AM, Slavko Kocjancic<esla...@gmail.com> wrote: > > >> That's not problem of friction at all!. >> >> The worst you have is 'sticky' axis. >> That means you need a lot more power to start to move axis and when already >> moving the required power is a way smaller. >> >> > No. > > This is an axis with friction. The opposing force dows not diminish with > movement. > If you can't tune it out with PID (FF1 might be something to look at), try this inverse deadband component: <http://www.anderswallin.net/2008/04/idb-inverse-deadband-component-for-emc2/>
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