To mill a hole more than 4 inches deep would seem to be problematic using an endmill plus helically interpolated holes are seldom precisely round. Why wouldn't you use a boring head? The beauty of boring is that it produces a round hole! The cheapie boring heads are hard to adjust but not too bad if you work slowly. If you have access to both the top and bottom of the cylinder you could mount it to your lathe carriage and use a homebrew between centres boring bar.
> -----Original Message----- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: Tuesday, August 01, 2017 2:23 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Cylinder Boring > > On 1 August 2017 at 18:41, Kirk Wallace <kwall...@wallacecompany.com> > wrote: > > > My first thought is to set up a boring bar and do a straight plunge in > > Z > > That is what I would do. But then I have a rather nice boring head. > > -- > 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 ------------------------------------------------------------------------------ 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
