Nicklas, when I built a pcb drilling machine some years ago, I found constant acceleration and deceleration to top speed worked best, as for the most part trying to go instantly to the maximum speed the motors are capable of results in lost steps. You will need a bit of experimentation to determine the rate and length of both acceleration ramps as it will depend on the mass of your machine and the motors and power supply you are using.
Ken. On Sat, Mar 19, 2016 at 5:46 AM, Nicklas Karlsson <nicklas.karlsso...@gmail.com> wrote: > I am planning to use a micro controller for stepper step pulse generation. I > have considered to use an inverter card but special purpose stepper circuits > are cheap so I use one of these instead. It should be possible to feed timer > values then toggle should happen via DMA timer output compare values. > > Can anyone suggest how an ideal step generation curve should look? Constant > acceleration up to top speed? Constant deceleration from top speed to zero? > Or just stop generating pulses? > > Regards Nicklas Karlsson > > ------------------------------------------------------------------------------ > Transform Data into Opportunity. > Accelerate data analysis in your applications with > Intel Data Analytics Acceleration Library. > Click to learn more. > http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
