Elaborating on my own post: On Thu, Mar 30, 2017, at 03:21 PM, John Kasunich wrote: > Why can't it be as 120mm diameter x 5mm thick disk?
Turn said disk on the lathe, and bore a concentric but much smaller hole in the center. Then you can indicate to either the hole or a dowel inserted in the hole. There would be at least two, maybe four, other holes, non-critical, for bolting the disk down to the table. Bolt it down loosely with the table empty, indicate such that spindle points thru the center of the vertical dowel, tighten bolts and check again. Then set the part over the disk, indicate base perpendicular to spindle, and clamp part down. > On Thu, Mar 30, 2017, at 09:00 AM, andy pugh wrote: > > On 30 March 2017 at 13:41, Cristian Bontas <cristianbonta...@gmail.com> > > wrote: > > > You could turn a cylinder that fits snugly in the large hole. > > > > Certainly a possibility, but at 120mm quite a big chunk of material to > > use just as a jig. > > > > -- > > 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 > > > -- > John Kasunich > jmkasun...@fastmail.fm -- John Kasunich jmkasun...@fastmail.fm ------------------------------------------------------------------------------ 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
