On Mon, Oct 11, 2010 at 05:18:14PM -0500, Stuart Stevenson wrote: > no regression > > http://www.mpm1.com:8080/machines/Screenshot1.png > http://www.mpm1.com:8080/machines/Screenshot2.png > http://www.mpm1.com:8080/machines/Screenshot3.png > http://www.mpm1.com:8080/machines/Screenshot4.png > > The pictures show some of the progression during tuning. Number 4 is the > final result. My questions have been trying to figure out why the traces > have the spikes like they do.
Oops, you are right - that last trace looks excellent. I do not think you can improve it. Our planner does not limit jerk (derivative of acceleration) and you are seeing your machine's mechanical response to being told to transition from one acceleration to another instantaneously. The only thing in Screenshot4 I think you could do is tweak the offset pot on the amp just a bit to eliminate that .0001-2 offset. Chris ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
