Stick something on the stepper shaft to be used as a pointer (a triangular piece of paper) and then tell it to move 200 steps. If it moves a complete revolution, you're done. Other wise try some other common values, 50, 400.
> -----Original Message----- > From: Ian R Upton [mailto:[email protected]] > Sent: Friday, 11 September 2009 4:35 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Stepper motor setup and test > > Gentlefolk, > > Thanks for all the comments and suggestions. > > Back looking at the basics. How do I know the motor is 50 steps/rev??? > > The motor is an Epson EM-257 which I have not been able to > find much about on the Internet. > > I held the shaft of the motor and rotated it carefully. 50 "steps" > (harder movements) per rev. > > Originally the thing seemed to go beserk when run at 200 > steps/rev. But this may have been effected by my early > settings, excess current, velocity, etc. > > I have just set the steps/rev to 200 and am now starting to > fiddle current, velocity, etc. Looks encouraging. > > So how do I determine the number of steps per rev accurately?? > > Ian > > > > -------------------------------------------------------------- > ---------------- > Let Crystal Reports handle the reporting - Free Crystal > Reports 2008 30-Day trial. Simplify your report design, > integration and deployment - and focus on what you do best, > core application coding. Discover what's new with Crystal > Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
