On 10/12/2015 08:08 AM, andy pugh wrote: > I think we need to consider whether we want arbitrary arcs or > arbitrary working planes. They are not really the same thing. Out of > interest, with the Heidenhain code, what happens to the apparent XYZ > when you change plane? Are XYZ still in machine cartesian space, or > does the entire coordinate system shift?
If you decide that arbitrary working plane is the way to go, you might also consider the Fanuc model. G68 X Y Z I J K R X, Y, and Z specify the origin of the transformed coordinate system. I, J, and K specify a vector about which the coordinate system is rotated by angle R. It is possible to have two G68 transformations active at once, the second applied on top of the first. G69 cancels all G68 coordinate transformations. -- Chris Lesiak Principal Design Engineer, Software LI-COR, Inc. [email protected] Any opinions expressed are those of the author and do not necessarily represent those of his employer. ------------------------------------------------------------------------------ _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
