On 30 March 2017 at 12:38, Stephen Dubovsky <smdubov...@gmail.com> wrote: > Why not swap 2&3? Machine base flat and machine keyway for the table. > Then mount to the table and indicate off the table slot to bore the hole > exactly on center? By default they will be parallel.
The slots run the wrong way for this to work quite that easily, but I have considered a variant. I have been wondering about machining the keyway slot as part of the first step and making it deep enough at the front face to be able to probe it. However, I would prefer the freedom to centre the main mounting bore in the semi-machined casting at step 2, rather than have to get the key slot in the correct place first. The reason I initially mentioned the radial-hole situation with a vertical mill is that I think this is a very common operation, so there must be a common way of doing the setup. However, my Google-fu seems weak, and all I seem to be able to find are instructions on how to square up the machines themselves rather than ways to set up to workpieces. -- 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
