Why not ball bearings? Then there is no relative movement between the rest and the part.
As for friction of solid fingers lowest friction is a lead/copper alloy, next best phosphor bronze. Motor oil helps. On Sat, Jul 15, 2017 at 7:00 PM, Trent Hejazi <[email protected]> wrote: > I have brass contact fingers and they work well. When supporting the > barrel tennon, they ride on the threads without damaging them. Otherwise, > they will always leave an annoying ring on a barrel. Only way to > circumvent is to make a collar to slip over barrel, then skim cut > concentric with the bore. Other option is to make a set of inboard and > outboard cat-heads so you can work near the head stock. This really > depends on the spindle bore dia and barrel dimensions you are working > with. > > Marshall > > On 7/15/17, 8:46 PM, "Gene Heskett" <[email protected]> wrote: > > >Greetings all; > > > >My steady rest has steel sliders, which will not do for working on > >finished parts. So I need to order a foot of 1/2x1" brass or copper to > >make some more better shoes. > > > >Which will do the least damage to a pre-finished part, such as the fairly > >high polished SS barrel? Brass or copper? > > > >Thanks everybody. > > > >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 > > > > ------------------------------------------------------------ > ------------------ > 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 > -- Chris Albertson Redondo Beach, California ------------------------------------------------------------------------------ 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
