On Tuesday 24 November 2020 16:08:41 Viesturs Lācis wrote: > I have worked on that machine for some time now and what I have > managed so far is that machine actually works nice, when I execute a > sample g-code file. I saved it, edited to scale up 10x and then ran > it. Everything is nice, rapids are smooth at 15 m/min. > > The problem is that the velocity is fluctuating, when I am jogging the > machine. And the thing is that it is fluctuating not only when I jog > it with keyboard, but also when I jog it from Axis GUI by selecting > particular axis and pressing "+" or "-" (I had almost exact issue with > another machine last week, but for that machine somehow I discovered > that velocity is fluctuating when I jog with keyboard, it moved > smoothly if I jogged from GUI, so I decided that it is crappy > keyboard, probably too much dust under the keys). > Here is a velocity graph for one particular attempt of jogging it: > https://www.picpasteplus.com/v.php?i=5f646fd6db
Humm, somethings wonky, your .ini file says the servo-thread is running at a millisecond, but the halscope picture says 250 hz=4 milliseconds. what kernel are you seeing in a uname -a report? > Here is INI file: > https://pastebin.com/8MLwCVw5 > > Here is HAL file: > https://pastebin.com/9eqSSNtX > > As you can see, the section related plasma torch and thc are in > progress. And here I have another issue - encoder rawcounts value does > not change, if I apply +12V on thc board inputs (that is 300V version, > so I would expect at least some pulses). I suspect that THCAD would > output pulses even if there is no voltage applied to input. Is that > correct? > Here is a picture of THCAD board in the cabinet: > https://www.picpasteplus.com/v.php?i=0cbcca94b0 > My first question - is the wiring correct? I mean, what is minimum > wiring required? I have +5V and GND to power the THCAD and the third > is FOUT+, all three wires connected to "encoder" on 7i96 - 5V and GND > to the respective pins, FOUT+ to A. > Here is the 7i96 board: > https://www.picpasteplus.com/v.php?i=d238f584b4 > Am I missing something? I think that the jumpers are correct for > single-ended pulse signal. And I have set it in HAL for counter_mode = > 1. I am all out of ideas. > > Viesturs > > ceturtd., 2020. g. 12. nov., plkst. 23:43 — lietotājs Peter C. Wallace > > (<p...@mesanet.com>) rakstīja: > > >Any ideas about those oscillations? > > > > > >Viesturs > > > > Can you post your hal/ini files? > > > > Peter Wallace > > Mesa Electronics > > > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
