I have seen such S-shaped velocity curves like this: http://www1.adept.com/main/ke/data/controller/smartmotion_developer/images/S-curve%20profile_575x281.gif which is even slower than simple speed curve in case main sloap is the same.
In the picture attached 1st curve is like turbocnc does, 3rd is simple (LinuxCNC), 4th is S-shaped and 2nd is like it might look for stepper motors (provided that velocity starts from zero) because their torque at low speeds is higher. I remember that OEM controller has such parameters like axis starting velocity, axis acceleration, and some parameter for common acceleration when several axes are moving simultaneously in curve. "Przemek Klosowski" <[email protected]> wrote in message news:CAC=1GgGX3bv3vO=xLStkk2Frc9fk0nJ9M5N-g+q-an5NduVK=w...@mail.gmail.com... > On Wed, Apr 4, 2012 at 3:00 AM, propcoder > <[email protected]> wrote: > > 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? 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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
