Just a update. I got the mill moving! Not too sure what the problem was but it's going now.
And I posted another question on a stepgen PID issue. Regards Andrew On Sun, Sep 1, 2019, 9:53 AM andrew beck <[email protected]> wrote: > I can borrow one.. How do your use them? > > On Fri, Aug 30, 2019, 12:31 AM Gene Heskett <[email protected]> wrote: > >> On Thursday 29 August 2019 05:41:14 andrew beck wrote: >> >> > Hi guys >> > >> > I am having trouble with my step and direction pulses running my servo >> > drives on my cnc mill. >> > >> > I did have them all working on the bench 2 weeks ago, but now I must >> > have changed something when I installed the electrical panel on the >> > machine and I am thinking that I may have gotten a bit stuck and have >> > the wires wrong. I checked the pinouts at both ends and it looks good >> > but I think it must be something simple that I have missed.. >> >> Do you have an oscilloscope? Troubleshooting such as this is much easier >> with a nice faster than the eye display. >> >> > I can't even get a simple stepper motor going so the problem is not >> > with the servo drives. The mesa board used to work and I haven't >> > shocked it since and both leds look ok.. The board is not isolated at >> > the moment and is connected with metal stand offs I didn't have any >> > plastic handy. Not sure if that could cause issues.. >> >> It could, you may want to see if some fiber or plastic washers can be >> found. The metal standoffs aren't generally a problem, but too large a >> washer can short passing traces so they shouldn't be metallic. Put one >> on each side of the board. >> > >> > Anyway any ideas let me know please. Hopefully it just needs a good >> > nights sleep and I will find something in the morning. >> > >> > Ps one thing I would love to hear about is some good timing values for >> > servo drives running step and direction. I would love to get from >> > anyone who has some good values to use. >> >> I won't say because whats good for me might be bogus for yours of a >> different make and revision, and those have 10/1 variations, depending >> on who made the driver and how fast the opto-isolators used are. Asking >> the driver maker is the best advice. Or see if your drivers are listed >> in the wiki at wiki-linuxcnc.org. >> > >> > >> > Regards >> > >> > Andrew >> > >> > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_ >> >campaign=sig-email&utm_content=webmail> Virus-free. >> > www.avast.com >> > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_ >> >campaign=sig-email&utm_content=webmail> >> > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> > >> > _______________________________________________ >> > Emc-users mailing list >> > [email protected] >> > 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 >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
