On Monday 10 October 2016 10:42:08 Gene Heskett wrote: > On Monday 10 October 2016 09:58:16 John Kasunich wrote: > > On Mon, Oct 10, 2016, at 09:39 AM, Gene Heskett wrote: > > > Greetings all; > > > The problem slippage is because these Chinese TTS holders > > > can't be tightened in by the drawbar bolt, tight enough to stop > > > the TTS from turning in the R8 when I am tightening the nut on the > > > TTS. IMO these should have been keyed into the R8, but wasn't. > > > > > > I need a longer, 100 mm's doesn't give me enough leverage, square > > > box end, not open end, wrench for the drawbar bolt. > > > > Are you talking about tightening the ER collet nut on the collet > > chuck? > > > > If so, you should be using two wrenches _on the collet chuck_ > > There are wrench flats on the body of the collet chuck for exactly > > that purpose. > > > > The required torque for ER collets is surprisingly high, don't have > > the number at my fingertips but its going to be hard to get proper > > torque with only one wrench and relying on the spindle brake and > > R8 collet. > > You are no doubt correct and I'll see if I can find another wrench (I > have bunches in both standards) to slide off the chip tray when the > cutting gets noisy. I get my exercise picking stuff up off the floor. > My back doesn't need it. :( > > Thanks John. > > Cheers, Gene Heskett
Turns out its a sloppy 22mm fit, and the only one in captivity out here in the Wilds of West Virginia was at Advance Auto for about a tenner. Got home & found it was too thick and I took about a millimeter off each side with an angle grinder. Then it worked. But I get the feeling I would spin the Chinese TTS in this one if I really hauled on it. I'm wondering if it was supposed to be 22 mm's. I measured several of those Chinese holders, and came up with an amazingly consistent 21.67 mm's. Is there an American size thats a better fit? I know theres' a few of us who bought those things, is 22 mm's the size wrench the rest of you are using on those? Thanks. Between that and a fresh tool, I finished that side of the 4 holders and if some company later this evening or in the morning doesn't tire my back, I _may_ be able to finish those up in TLM tomorrow. I haven't been anyplace for the aquarium pump yet, nor have I tapped the bearing mounts to mount the end pieces yet. 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-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
