On Wed, Apr 4, 2012 at 3:00 AM, propcoder <[email protected]> wrote:
> turbocnc have such parameter as starting velocity. This is velocity, at > which motor can instantly run (I think it actually comes to controlled phase > in time without loosing a step). OEM solution had acceleration setting of > 600mm/s2. The same setting on LinuxCNC makes machine too slow. Raising it to > 1500 makes good speed, but too much vibrations. Is it possible that your old controller used S shape speed profiles, i.e. it started by limiting acceleration to 600m/s2 but then used higher acceleration? I seem to remember that LinuxCNC uses trapezoidal profile, i.e. the initial acceleration is never exceeded, and the speed linearly ramps to max speed ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
