On Sunday 22 January 2017 09:40:09 Peter Blodow wrote: > Never touch a running system. > Peter > Why not Peter, since it isn't yet running at a usable level?
My target of this particular exercise is to make, from 1/2" 7076 alu plate about 60 yo, a double set of "drawbolt" clamped rings, one that grabs the rim of the spindle flange, and one that grabs the hub of the chuck mount faceplate. bolted together about 1/3 of a turn from the milled slot the drawbolt will pull closed until each has a death grip, one of the spindle flange, and one on the faceplate hub. The idea is to, as long as the drawbolts are tight, lock the chuck to the spindle, absolutely preventing it from being unscrewed by a violent reversal, say at the bottom of a g33.1 operation. The faceplate hub looks and measures pretty close to cylindrical, but it is a rough surfaced forgeing or cast steel surface I am looking at, and I'd druther it was trued, which means I'd have to separate it from the chuck and turn it around on the spindle to gain access to taking off a thou or 5 while making it cylindrical and concentric. This is a combo of restoration where needed and cnc'ing it. Its working just well enough I made the chess pawn out of cherry a couple nights ago, but have not made any metallic swarf yet. Trueing up that hub would be the first metallic operation I've done on it. I'll take that back, the first operation would be to make an alu copy of those two, the spindles flange, and the hub of the faceplate, to be used as a plug gage when locating the two bolts that will bolt these circular rings together so they are concentric. Its no biggie to me if I have to chuck up a 1/2" piece of A2, put a dial of it and work the chuck over with a dead blow hammer to restore its grippers to .0001" runout when I'm done. Its a medium priced 3 jaw with 2 piece jaws. I have serious doubts it even has the ability to match that if the 1/2" A2 is loosened & retightened. But I'll find out in due time... I do appreciate the concern though, thanks Peter > Am 21.01.2017 20:24, schrieb Gene Heskett: > > Greetings everybody. > > > > My 3 jaw chuck atm, runs pretty true. But to be able to turn the > > faceplate around and clean up the OD of the hub for a grab surface > > for my clamp concoction so it can't unscrew itself during a violent > > reversal, I'll have to remove the chuck, removing its 5.16" socket > > cap screws. > > > > Whats my chances of getting it remounted so it runs true again once > > I have made a 2 or 3 thou cleanup cut on the rear hubs OD with the > > the faceplate reversed on the spindle? > > > > Cheers, Gene Heskett > > --- > Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. > https://www.avast.com/antivirus > > > ---------------------------------------------------------------------- >-------- 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
