Gentlemen,
although I understand much more now about EMC than in January, I still have 
problems with my stepper motors. They do pretty much what they ought to now 
( I can scribe the AXIS logo with my PCB drill), but their sound still 
isn't what we all are used to from photo copiers and other stepping gear. 
My motor gives about a constant tone, which is not very distinct, however. 
The turning isn't "easy going", I seem to feel a reluctance to follow each 
step impulse.

I reduced the problem to the X-axis only to make it simpler to follow. At 
any rate, there is no "singing" or whining of the motor, I can't hear the 
familiar accelerating and decelerating sound, it makes no difference in 
sound when I change the stepping frequency. I can vary all the params in 
stepconf and test their axis within the program, it makes no difference. 
Understand me right, the motor sure varies speed and acceleration visibly, 
so the configuration shows effect all right, but it's not an audible 
change. And I don't think I can rely on the true count of steps, surely not 
when it comes to work under load. This phenomenon is what I called 
"rattling" in a former thread (end of Jan.).

I tried, as I was adviced then, to eliminate doublestep, I changed polarity 
of puls an direction, varied pulse and pause times, chose extreme pulse and 
pause rates manually editing the hal and ini files, it all makes no change 
in this behaviour.

The driver card can't be the reason because with my old DOS program things 
work still ok.

What can be wrong with my setup?
Thanks in advance
Peter Blodow


------------------------------------------------------------------------------
Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are
powering Web 2.0 with engaging, cross-platform capabilities. Quickly and
easily build your RIAs with Flex Builder, the Eclipse(TM)based development
software that enables intelligent coding and step-through debugging.
Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Reply via email to