2009/9/10 Ian R Upton <[email protected]>: > Therefore I would expect 50 steps to move the motor shaft 1 rev for a > jog step of 1.00MM. > > But no! I need to have a jog step of 4.00MM to get the motor to move 1 rev.
Wierd. I suspect that something is microstepping somwhere despite being told not to, or that there is internal gearing in the motor. Or pixies. One other thing worth checking, the mark-space ratio of the pulse train might matter. It might also be worth inverting the step pulses in Stepconf. (perhaps your controller switches on the falling edge rather than the rising edge). EMC2 does exactly as it is told when driving the parallel port, (or more people would have mentioned it) so the issue must be either that you haven't set it up the way you think you have, or some issue with the downstream hardware. Or (it just occurs to me), you might be the only person ever to use a 50-step motor, and everyone else has always used 200 step ones and not noticed that the steps/rev setting is ignored. Seems unlikely, though. -- atp ------------------------------------------------------------------------------ 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
