I wonder if this is the same problem Fred is having? I have never used steppers so I am clueless (well okay, more than normal).
On Sat, 2008-02-09 at 15:05 -0800, [EMAIL PROTECTED] wrote: > Hi, > I am confused by an odd stepper problem which I can't understand. The > stepper affected is the one driving my rotary axis and the problem > is > that it won't go fast enough... To explain - if I issue a G1 command > in > MDI, I am limited to a F20 speed as, beyond that, the stepper gets > very > jittery and loses steps (at F40 it gives up altogether). However, if > I > issue a G0 command, the stepper whirls away happily at 3 or 4 times > the > speed and doesn't seem to lose steps at all (i.e. I can send it one > way > and then the other and it returns to where it started.). So, what is > the > difference between a G1 command and a G0 command and how can I get > the > G1 speed to increase reliably up to almost the G0 speed? > I'm running the latest version of EMC2 on Ubuntu (unless I've missed > a > service release in the last 2 weeks ). > -- > Best wishes, > > Ian > ____________ > Ian W. Wright > Sheffield UK > > "The difference between theory and practice is much smaller in theory > than in practice..." > > -- > > [EMAIL PROTECTED] > -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) ------------------------------------------------------------------------- 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
