On Saturday 08 September 2018 22:34:06 Phillip Carter wrote: > On 9/9/18 5:18 am, Gene Heskett wrote: > > Greetings all; > > > > I am about to give up on this bedwear comp project. > > > > How I determine the amount of correction needed has been tried by > > watching the dial as Z is moved, taking notes as to which way the > > center of the wobble (the spindle is running about 15 rpms) moves, > > and putting that DRO's RAD in the hal files lincurve "setp" list. > > Makes it worse, change sign of lincurve y-val, still worse. Seems > > like the correction is being multiplied by 3 or more. > > > > I have run it to a lincurve X-val-nn point, and using the jog dial, > > centered the dials wobble on zero, then put the obtained rad into a > > y-val-nn, again making it worse with either sign. > > > > So how do you folks derive the correction needed? > > > > I'm assuming the offset itself is in radius, not diameter. In which > > case the needed radius correction max's at about 2.5 thou. And that > > the sign is the "tricky" part. > > > > Thanks everybody. > > This lathe bedwear may be a good candidate for the > dgarr/external_offsets branch. > Humm, can't say I've ever heard of that. URL?
> Cheers, Phill Thanks Phill.> > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > 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> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
