Kirk Wallace wrote: > I am losing patience with the Bandit on my Shizuoka mill, so I am > thinking of converting to EMC2 sooner than later. I would like to save > the stepper drivers but they look like they might have a proprietary > integration with the controller. The drives have four inputs that appear > to take in steps as quadrature signals plus their complements; QB, > QA, /QB, /QA. EMC2 can produce these signals. You can generate quadrature outputs and then produce the complements with inverter chips. That still uses only 2 pins/axis. Or, you can make it produce wave drive, and get smoother operation with wave drive, at the cost of going to 4 pins/axis. > > QB ___|```|___|```|_ > QA _|```|___|```|___ > /QB ```|___|```|___|` > /QA `|___|```|___|``` > > ... Darn, I just realized this will only work for the parallel port, > which is too slow. Why is the par. port too slow? I guess, I need new step/direction drivers plus a > hardware clock generator. Unless someone knows of a clock generator with > quadrature outputs. > > For a stepper driver, what do I need to consider to make the best > integration with EMC2? > > My current drivers have a 45 V supply, 8 Amp limit, and 6 wires of which > two are labeled "common". The motors are not labeled and I don't know > how to determine the steps per revolution.
Almost without a doubt, 200 full steps/rev. Jon ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
