[EMAIL PROTECTED] wrote: > > --- [EMAIL PROTECTED] wrote: > > From: Andrew Ayre <[EMAIL PROTECTED]> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Newbie Help Needed - Losing Steps > Date: Tue, 08 Apr 2008 18:08:58 -0700 > > Update - I switched to 1/4 stepping mode. Movement is smoother and > quieter. The top speed of each axis is now limited by the speed of the > real time system on my PC, with no stalls. > > Thanks for the help. :) > > Andy > > A while back I posted a pic of full step torque that was made for a project > in India. It showed full step torque drop to near zero at resonant > frequencies. Glad to hear that the microstepping took care of the problem > for you. > > You can probably tune the loops in EMC and HAL to boost high speed > performance if you need more than you've got. > > Rayh
Ray, learning how to tune loops sounds intriguing and perhaps interesting to play with, but it's probably well beyond my abilities. Is there a tutorial somewhere? The speeds I now get for X and Y is 71.4 IPM, which I think is fine for my small machine (18" x 12"). I'm using a P4 1.6GHz, 512Mb RAM with Ubuntu Gutsy if anyone is interested. Andy -- Andy PGP Key ID: 0xDC1B5864 ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
