Anyone have any ideas on this? I'm really stuck here and would like to have a fix or a work around.
Thanks, Fred --- f m <[EMAIL PROTECTED]> wrote: > Hello, Im having some problems with getting the A > axis on EMC working. Primarily following errors, but > there also appears to be a discrepancy in units > between the stepconfig wizard, (degrees/second) vs. > EMC (degrees/minute), and deceleration at the end of > a > move. > > Im using a 200 step stepper motor. The drive is > microstepping at 25 pulses/step which equates to > 13.8888889 pulses/degree. > > Using the stepconfig wizard, the motor will operate > reliably with speeds to 2400 deg/sec and the > acceleration at 24000 deg/sec^2. 2400 deg/sec should > equate to 144000 deg/min. > > Using EMC, any speed above 25700 deg/min will cause > intermittent following errors, and any speed above > 26100 deg/min will always cause a following error. I > am testing this by entering G code G1FxxxxxA360 to > do > one complete turn, or G1FxxxxxA0 to return to the > starting point. I upgraded to 2.2.3 yesterday, it > didnt seem to make any difference in operation. > > Ive also noticed that a move in a positive > direction, > either from 0 to 360 deg or -360 to 0 deg, at the > end > of the move the motor will always overshoot. It > doesnt appear to be ramping speed down, it just > stops > sending steps. In the negative direction, it works > correctly ramping speed down to the stop. > > Any ideas? > > Thanks, > > Fred > > > > > > ____________________________________________________________________________________ > Never miss a thing. Make Yahoo your home page. > http://www.yahoo.com/r/hs > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio > 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
