Matt Shaver wrote: >On Mon, 2008-09-15 at 20:50 -0600, Sebastian Kuzminsky wrote: > > >>Sebastian Kuzminsky wrote: >>Nope, i'm off by 10. 5 us/step is 200K steps/second. The >>stepgen.maxvel of 10 inches/second is too high but the trajectory >>planner's MAX_VELOCITY of 4.8 inches/second should be fine. >> >>Nevermind me, i'll crawl back into my sewer pipe now. >> >> > >I'll admit it, you had me when I read your first message! I thought, "Oh >crap! I've made a math mistake!". Keep checking my work with a skeptical >eye, PLEASE! I make plenty of mistakes! > > In that case :)
>200 Motor Steps * 200 uSteps * 4 Screw Turns/Inch = 80000 Steps per Inch >(200000 Hz Max Step Rate / 80000 Steps per Inch) * 60 Seconds per Minute >= 150 Inches per Minute Maximum Feed Rate > 200 steps * 200 usteps * 4 TPI = 160000, not 80000 steps/inch (2*2*4 = 16, plus 4 zeroes). So you're at 80000 when using 100 ustep mode. - Steve ------------------------------------------------------------------------- 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
