On Wed, Jun 29, 2016, at 12:39 PM, Gene Heskett wrote: > On Wednesday 29 June 2016 11:16:26 Ralph Stirling wrote: > > > Have any of you come across cheap collet spindles that > > have a through-bore? I am toying with an idea for a > > simple, special-purpose lathe, and need a hollow spindle. > > > > Thanks, > > -- Ralph > > Looking around on eBay for 5C collet kits, I stumbled over a 5C to ER40 > tool and a big box of ER40 collets. That adaptor claims to be bored > internally for stoppers, so I'd have to assume its bored thru. So if you > need less that its passthru, I'm guessing an inch or a few thou more,
The original poster was looking for ER16, not ER40. Huge difference... > There are ER40 adaptors for lots of > smaller spindles but the 5C would probably be only one of two bored > thru, as I'd expect the R8-ER40 adaptor is too. R8 to anything adapter is highly unlikely to be bored thru. R8 uses a 7/16-20 drawbar thread, and a solid drawBAR not a hollow drawTUBE. -- John Kasunich jmkasun...@fastmail.fm ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
