2009/12/18 John Dunn <[email protected]>: > I also have 2 size 23 stepper > motors from a printer which I believe are 5 volts 1 amp 6 wire unipolar. The > next thing I need are 2 stepper motor drivers. I'm a bit confused about > these, will any type match up with emc2 or do they have to be a particular > type?
If you are just messing about, and if you only have 2 axes, and if you only need 1A per motor and if your motors are unipolar (note all those "if"s quite carefully) then you can get away with not using any drivers at all. You can run the motors using a pair of very cheap chips (ULN2803) which have 8 channels rated at 500mA. Double up the channels (sharing a parallel port pin) and use one chip per motor. You can then use step signals generated directly by EMC2. See: http://www.doc.ic.ac.uk/~ih/doc/stepper/control2/connect.html (The ULN2803 is an octal version of the 7-channel ULN2003) And also look at stepgen type 9 at: http://linuxcnc.org/docs/html/man/man9/stepgen.9.html -- atp ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
