On Saturday 18 August 2018 15:53:15 Gene Heskett wrote: Ping?
> Greetings guys; > > I have a little over 2 feet of 1/2" A2 chucked in the ER40 kit on the > Sheldon, and I have pushed and pulled on the middle of it so its > within about 6 thou to dead straight watching it turn slowly with a > dial. I had, when only about 1/4" was projecting from the ER40, put a > center drill into the end of it, cutting very slowly so it would be > fairly close to center, and watching the dial, it has about a 3.8 thou > wobble about 1/4" from a snugged up dead center, and I've used that to > center the tailstock. Elevation of course is still iffy. We'll ignore > that for the moment. > > I'm about to install a lincurve/offset kit and adjust it to center the > wobble up on the zero of the dial at as many places as I can, but to > do that accurately, the lincurve reference input must not be effected > by Z touch offs etc, only by the absolute Z position established when > it was homed. > > It appears the bed is worn such that it would be turning about 3 thou > small in the max wear in front of the spindle area, then fades in a > relatively straight pattern from about a foot away to the end of my A2 > rod. So It's not quite Moglic time yet if lincurve and offset can be > made to compensate. > > So, where do I get this absolute Z position to feed lincurve from? > > Poking around with a halmeter, I can't find it. And the man page > makes no mention of enabling motion.debug pins, which are 100% > missing. > > Cheers all, 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 > [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) 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
