On 7 March 2018 at 14:55, Gene Heskett <ghesk...@shentel.net> wrote: > Price is scary, and still leaves the collet free to slip. I think I'd > rather sacrifice an R8 by grinding a key slot into it for a cap screw in > the side of a brass tap holder,
Or just make a complete R8. Here is a 3D model (viewable online) of an idea. http://a360.co/2Fl8AXO It's a solid R9 bored for the tap shank with a slot milled through to make flats to engage the tap flats. (in theory you could mill only just deep enough to make a 3-sided drive square). And I guess with a bit more work, an insert to add a clampable 4th side. But the design shown is a fairly simple bit of lathe work, with a couple of simple milling ops. I think that Aluminium would probably be entirely adequate. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users