> andyholcomb wrote: >> core_stepper.hal >> http://pastebin.ca/1192190 >> pluto_pinout.hal >> http://pastebin.ca/1192191 >> sim_pinout.hal >> http://pastebin.ca/1192193 >> standard_pinout.hal >> http://pastebin.ca/1192194 >> stepper_inch.ini >> http://pastebin.ca/1192195 >> xylotex_pinout.hal >> http://pastebin.ca/1192196 >> >> > > Are you absolutely sure these are the files you are using? > > There are several problems, starting with the fact that the ini file > only invokes two .hal files, but you posted five .hal files. That isn't > a technical issue - you only need the two - but it just adds to the > confusion. > > Technical problems: you have a max velocity of 1, which means 1 inch > per second. You have a scale of 40000, which means 40,000 steps per > inch. Combined, that means 40,000 steps per second. To do that, you > would need a base period no longer than 12500 nanoseconds (which is very > fast). You have 14000 nanoseconds (which is also quite fast, but not > fast enough to get the speed you are asking for). I think you'll need > to lower your top speed. > i just interesting, is pulse per revolution same as steps per revolution (x something to get steps per inch)? can i say that 1 step/pulse = 0.3125 nanoseconds and when it comes close to 12500-13000 is is too fast? thanks
> Jeff Epler tried running the config, and got a following error, because > of the speed limit, and/or an acceleration limit. He had to lower the > max speed to 0.7 and raise STEPGEN_MAXACCEL to 45 just to get it to run. > When he did that, the position commands are rock-stable. > > If you don't get on IRC this evening, or we are gone when you arrive, > you can see the discussion so far at: > http://www.linuxcnc.org/irc/irc.freenode.net:6667/emcdevel/2008-09-03.txt > starting at 01:34:50. Please read that so you know where we stand. > > By the way, better info about how to use IRC is here: > http://www.linuxcnc.org/content/view/4/8/lang,en/ > > Regards, > > John Kasunich > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > Grand prize is a trip for two to an Open Source event anywhere in the > world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
