The timings in the chart seem a bit better but still not good enough. Yes I can jog and the motors sound reasonable,
When I try to engrave a line of text the individual letters look good, but they get progressively, and randomly, miss-aligned on the y axis. Also the total length of the text seems a little small. When I try to engrave a series of 3 squares and a circle, the squares get rounded corners and the circle is miss-placed in the pattern. Does this help to diagnose the problem? Is it a question of tweaking the timings? When a motor looses steps does it do so in the same place every time you run a program? Any and all help gratefully received Aaron > ----- Original Message ----- > From: "John Thornton" <[EMAIL PROTECTED]> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Micro stepper driver MSD542 / KL-5042 > Date: Sun, 18 May 2008 17:00:26 -0600 > > > There is a step timing chart here: > > http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Stepper_Drive_Timing > > note that the MSD542 timing is not confirmed but should get you started. > > Does it move at all when you try and jog? Tell us a bit more about > what you do and > what you get and what you expected... > > John > > > On 18 May 2008 at 21:39, aaron Moore wrote: > > > Hi > > I am still having trouble configuring a stepper machine with MSD542 > > aka KL-5042 micro stepper drivers. I am getting far better results > > when configured with MACH 3 and can only think that it is the way it > > configures the drivers. In the data sheet it reads.. 'For > > reliable response, pulse width should be longer than 2.5us. and > > For reliable motion response, DIR signal should be ahead of PUL > > signal > > by 5us at least' > > > > How can I set up EMC with these values? I very much want to use open > > source software as much as possible, so if any one is using these > > drivers I would very much like to hear from them. > > > > Thanks > > Aaron > > > > -- Powered by Outblaze > > > > ---------------------------------------------------------------------- > > --- 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 > > > > > > ------------------------------------------------------------------------- > 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 > -- Powered by Outblaze ------------------------------------------------------------------------- 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
