In addition to what Alex said if you can get Gecko stepper drivers where you are located they work well. If your acceleration is set too high for the voltage you drive your steppers at you will have problems with missed steps. The higher your voltage (more or less) the faster you can drive a stepper motor (within limits).
There also might be some useful info on this page http://www.linuxcnc.org/docs/devel/html/common_Stepper_Diagnostics.html John On 24 Jan 2009 at 18:30, Peter blodow wrote: > Hello Alex, > maybe my English has become rusty those last 40 years without much > practice..., anyway: > I am using stepper driver boards of the 90'ies. So far, using the > software > provided by their producer they were running all right, but rather > weak > (too little amount of current) and the software is unflexible. Now, > with > EMC2, rest of the setup unchanged (except, of course, for Linux > instead of > DOS), the steppers don't perform right because according to Jeff > Epler, the > pulses at the printer port are too short to drive the motors. Or the > other > way around, the old driver board seemingly does not adjust pulse > length and > therefore the motors don't get enough energy during the pulse to > move one > step correctly. That's my diagnosis. > > As I understand, modern driver electronics care for sufficient pulse > length > independently of the trigger from the PC so the motors will run > smooth > again as they used to. And there came my question: will purchase of > new > electronics solve the problem? Apparently, because many participants > of > this mail group seem to use Mesa boards and it's working that way. > > Now, if I had new boards, I would have to adjust the system by means > of > stepconf - is that not right? Why do you say the parport setup by > stepconfig is useless? What else am I to use, and where can I find > more > information? > > Now, I in turn got the feeling that I don't quite get it... > > Peter Blodow ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
