On Tuesday 07 August 2018 18:37:38 Mark Wendt wrote: > On Tue, Aug 7, 2018, 18:06 andy pugh <bodge...@gmail.com> wrote: > > On 7 August 2018 at 20:35, Mark <wendt.m...@gmail.com> wrote: > > >Velocity went up to the usual and got a Joint > > > 2 following error. None of the steppers moved. Cleared > > > error,clicked on orange power button, hit the home button again, > > > same same. > > > > ... > > > > > Anybody run into this glitch before? > > > > Stepper power OK? > > Seems to be at this point. Control box powers up and all the lights in > the box come up. The stepper motors lock up with the hold power and I > definitely can't move them by hand. > > I've noticed previously when I forget to power the control box up > after bringing up LinuxCNC the display showed the Z axis counting up > as if it was trying to move the axis. Since it's a stepper system and > not a closed loop system like if I was running servos shouldn't it > still be counting up as if the axis were moving awaiting the tripping > of the home switch for that axis? > > Mark
The joint 2 following error is likely stopping it before it can move the on-screen DRO more than 2 or 3 counts if that far. Double-check all your db25's to make sure they are screwed together solidly, and if thats not it, double check the interface card (if using one, like a 5i25 etc, and not a mobo parport) to make sure its sitting solidly in the motherboard socket. The Oak shoe-boxes intel shipped with the MW525 mobo's, have a tendency to lift the rear of the interface board out of its pci socket. A different instance in one of my machines, the G0704, I had to cut 1/2" off the ends of the ribbon, and put my vice to good use by reinstalling the plugs to the cable, padding the open side of the connector with a stick of pine so as not to crush the metallic shell. That was 2 or 3 years ago, and has given me no further trouble. It had worked the cable back out of the idc pins almost 1/16", enough to kill some of the connections. No stress on it, thermal effects maybe? > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > 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) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
