I believe I bought my initial set of TT Tools and R8 Collect (marked 19.05 R8) from LittleMachineShop,com. The photo in this link shows how the R8 collet is flat. https://littlemachineshop.com/products/product_view.php?ProductID=2441&category=
Back then mine didn't come with grooves for the tool changer even though they are marked Tormach. There was an offer to return them for grinding the groove but shipping and the border made that a non-starter. I have since bought a set of 5 collet holders from the far east that also fit. However they have a much smaller shoulder and also wouldn't really fit a tool changer. If you look at this tool holder you can see there is a recess that clears even the little bit that the R8 collet sticks out. https://littlemachineshop.com/products/product_view.php?ProductID=2435&category= One day I really need to order a few more drill chucks so I can hold more than one drill bit. John > -----Original Message----- > From: Gene Heskett [mailto:[email protected]] > Sent: April-21-19 6:51 PM > To: [email protected] > Subject: Re: [Emc-users] ER ATC tool idea > > On Sunday 21 April 2019 21:05:23 Ken Strauss wrote: > > > Is it possible that the 3/4-inch shank is not properly relieved at the > > end where it meets the inside of the special TTS flange? If so and the > > nose of the R8 is not flat it might keep the collet from gripping > > firmly. > > Its been around 4 years since I first met the TTS tool holders, and this > thread is, I believe, the first mention of this. I have about a rack and > a half of R8's, all of which are a bit convex. I also have a couple > rotary tables with chucks mounted, and a 4.5" CBN cup, so fixing this > will take little but lots of time and a round tuit. > > There is no hope of tramming the g0704 unless one wants to spend days > fitting shim stock as the post leans forward about a degree, maybe more. > Another demonstration of TANSTAAFL as applied to an $1189 machine. > > And yes, its solidly mounted to the bed casting, with all 4 12mm bolts > about 1/8th turn from broke. Just crooked enough to notice when a drill > bit in a chuck is mounted facing up in order to drill the taps socket > hole well centered in a 7/8" diameter brass tap hat mounted face down in > a 7/8" R8. > > Thanks Ken. > > 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 > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
