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. -- John Kasunich [email protected] ------------------------------------------------------------------------------ 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
