On Monday 16 October 2017 07:56:47 Gene Heskett wrote: > On Monday 16 October 2017 04:38:53 andy pugh wrote: > > On 15 October 2017 at 23:07, Gene Heskett <ghesk...@shentel.net> wrote: > > > motion.spindle-revs IN FLOAT > > > For correct operation of spindle synchronized moves, > > > this signal must be hooked to the position pin of the spindle > > > encoder. > > > > > > should be satisfied by: > > > net spindle-vel-fb-rps <= hm2_5i25.0.encoder.00.velocity > > > net spindle-vel-fb-rps => scaleX60.in abs.encdir.in enc0.in0 > > > comp.filter.in0 motion.spindle-revs > > > > This is wrong. motion.spindle-revs should be spindle position, not > > velocity, and should increase by 1 for each revolution of the > > spindle. > > I didn't think it looked right when I started to post this. > > > You say that this worked before? I can't see how. > > > > > But the 5i25's builtin encoder does not have a "position". Would > > > count do? > > > > It does have a position.
Which until I ask for it in the hal file, apparently did not exist. I "hooked" it up and now it does. Crazy... > > I can't find it in the halmeter or halscope menu's. And its been > working for nearly 2 years. > > But I'll certainly look some more today. But this "hardware" problem > with the Z drive's driver in the 5i25, all of them, is new yesterday. > So I'll probably buy another Dell from pcliquidaters for about $95 > w/shipping today. Supposedly the same as this one. > > > https://github.com/LinuxCNC/linuxcnc/blob/master/src/hal/drivers/mes > >a- hostmot2/encoder.c#L454 And I may be a little schmardter. Checking grounds from the computer to the bob and beyond with an ohmmeter, I am getting intermittent and variable readings, often 0.00 but hold the connection for a few seconds it may go as high as 200 ohms! Since the ptc says its an amp, and it was destroyed on that 5i25, I am now printing the 5i25 manual. I am thinking the ground(s) on the pci socket may be duff now. So I've unplugged the cable from the bob, and will next check for a good ground on all 4 of the grounded pins next at the bob end of the cable. And I think the bob is running on the optional 5 volts the 5i25 says it can supply. Its pwr led has not flickered. Before that, I found the crazyness affected all 3 axises, and to an extent, the spindle drive as you can hear it hammering the backlash in the head gearing like its drive isn't exactly steady either. 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-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
