On Oct 30, 2008, at 9:06 PM, John Kasunich wrote: > Dave Engvall wrote: > > ay have to try something else. Will check for a menu. >> >> After the comments (JMK) this afternoon about problems with the Mazak >> at Galesburg I >> tried running a program on my machine while doing other things. >> The program was a pretty generic mill a bunch of identical blocks, >> first roughing at 4.5 ipm >> and the finishing at more like 12 ipm. Meanwhile I fired up the web >> browser since that makes the numbers on >> my latency test increase about as fast and anything I can do. Didn't >> even get a bump; even on the rapids between >> blocks. So while my latency numbers are really horrible, i.e. in the >> 96K range, I can't demonstrate any degradation >> in the performance of the mill. >> > > 96K is NOT horrible at all on a servo machine. It is step generation > that requires latencies of a few microseconds. Servo machines with > hardware encoder counters and DACs only need to run EMC's servo > thread, > at 1mS. Latencies of a hundred microseconds aren't going to seriously > hurt things. > > The "bumps" at Galesburg were the result of latencies of several > milliseconds, not a hundred microseconds or so. > > Regards, > > John Kasunich
Thanks John. I guess I can quit worrying about the messages and concentrate on making parts. Dave > > ---------------------------------------------------------------------- > --- > 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 > [email protected] > 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
