On Thursday 13 February 2020 12:00:41 Jon Elson wrote: > On 02/12/2020 09:42 PM, Gene Heskett wrote: > > quadrature is way off, but what concerns me in that these ATS-667's > > are running on 5 volts, normally switch rail to rail. But at the > > hm2-encoder-0 a b or Index, I am seeing a decent square wave, but > > its only 1 volt p-p. For all three ATS-667's. > > HUH? On digital signals, Halscope displays 1 and 0, these > are not analog values, just > logic, on and off. How do you suppose the Mesa digital > input logic gives you an analog > reading? > It can so do analog, like the waveforms around a PID. So how does it determine which is which?
And after reglueing one of the ATS-667's its dead. I had spares in a bag on top of the g0704 furniture but can't find them this morning. Going back out to get up on a ladder and take a better look, got Dee some lunch and the Orkin guy was here checking baits for additional distraction. I need someone to cross check my math for quadrature spacings, the OD of the bull gear is exactly 6" and it has 60 teeth. But then it gets into trig because of the curvature and I don't get the correct answers. ?? Looking at the duty cycles of the output, it appears the bent spindle error is causing a couple thou of runout of the bull gear. Figuratively speaking I paid 2G's for a $200 lathe. A heavy chuck was mounted when it fell over, smashed the compound and striped threads out of the crossfeed nut. Way before it followed me home where I found 80 thou of backlash in the crossfeed because some one in the distant past had repaired it with a helicoil kit. The crossfeed screw was in good shape but a good hammer would have sheared what was left of the helicoil, it was a very good knife. All rebuilt with a smallish ball screw anchored by putting 100% bearings in the front crank axle. X backlash is around a thou now. Thanks Jon. > > > _______________________________________________ > 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
