On the Fanuc 15MB control G68/G69 allowed the rotation of the XY/YZ/ZX planes. G68 would rotate one plane. Another G68 line would then rotate a second plane combining the two rotations. Tool motion would then be coordinated to the new plane locations. On the bridge mill with the BC head you would be able to work to print dimensions at any chosen orientation. A little tricky as the point of rotation was supremely important as well as the sequence of rotations. Confusion was a very possible result. I only ever used it a couple times. G69 was your friend as it cancelled all rotations.
On Wed, Dec 21, 2022, 8:52 AM andy pugh <bodge...@gmail.com> wrote: > On Tue, 20 Dec 2022 at 09:47, Joachim Franek <j...@pibf.de> wrote: > > BTW: > > http://wiki.linuxcnc.org/cgi-bin/wiki.pl?NURBS > > Here is a link to a pdf from Leto: but I do only > > get a pdf with 0 file length. > > I got the original papers from Ernesto Lo Valvo and have uploaded them > to that page. > In the email that he sent me with them he mentioned a significant > performance improvement in the G6.2 algorithm that is supposedly > outlined in the second paper, but has not been submitted to LinuxCNC. > > -- > 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, 1912 > > > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
