On 3 July 2017 at 00:56, <tom-...@bgp.nu> wrote: > > I have been playing with G41, G42 trying to understand what the $%%@ cutter > compensation means on a lathe.
It attempts to keep the insert tip tangential to the programmed path. (You can see this quite nicely in the sim, if you make the tool radius nice and big). Tip radius is not important (typically) for straight X or Z moves, bit becomes important for tapered cuts, which is presumably why the routine uses it. Be aware that you absolutely need the correct tool orientation programmed in the tool table for the results to be correct. Also be aware that LinuxCNC assumes a front-toolpost lathe where orientations are concerned. You need to miror the diagram in the docs for a back-toolpost. -- 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
