On 9 September 2017 at 08:50, Gene Heskett <[email protected]> wrote:
> So I am still puzzled by dialing in a -0.0500" cut, and only getting > a .0324" radius change. My experience is that lathes are just like that. Some tools cut the same at any chip load, some cut extra with a bigger cut, some cut less with a bigger cut. In production you just dial in the last cut, with an one off, when you really care, you have to creep up on it. (This is exactly the same with a manual lathe, but you don't notice because manual lathes are always used in incremental mode[1] [1] Which makes the dials on on Holbrook lovely, but pointless. They have internal gearing so the the metric and imperial scales are both always correct. If you turn the knob one turn then the carriage moves 0.1", The imperial scale moves one turn, but the metric dial graduated in 2.5mm per turn actually rotates 2.5 / 2.54 of turn. -- 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
