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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
