On Saturday 09 September 2017 03:20:44 Erik Christiansen wrote: > On 09.09.17 02:55, Gene Heskett wrote: > > I am gradually learning how to grind HSS tooling, which is usually > > sharper than a fresh carbide tool insert. That generally negates a > > spring pass need after the 2nd one. > > That helps, but if it's enough, then winding the cross-slide against > no more load than a dial gauge will show the same 10% error as you > have when cutting with the boring bar. _Then_ it's time to doubt the > screw pitch, I figure. > > ISTR that TLM is made of cheese, based on previous experience, so > excess elasticity here and there would have to be high on the list of > probable culprits. (Jus' sayin') > On TLM, expected Erik, but I got rid of the majority of that by putting tapered gibs in it and ditching the compound. Easily 10 times stiffer now, but they need re-adjustment frequently FWIW.
But this isn't TLM, its the 11x36 Sheldon, 1500 lbs of well aged, good cast iron, not that box of cottage cheese that tries to tell me its a lathe. > Erik > > ---------------------------------------------------------------------- >-------- 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
