On Fri, 22 Apr 2022 at 16:28, Ted <laser...@gmail.com> wrote: > For example, my CMM now has micron scales. The stylus has more than 1 > micron runout
It doesn't matter, I don't think. You are probing parts relative to themselves, so it doesn't matter if there is a constant offset at the probe tip. > Are there velocity variables exposed I could access Yes, but I don't think it helps. The point is that you can't know where on the sphere the part has touched the probe. Knowing the direction that the probe was moving before contact doesn't give you that information. Potentially you could probe a triangle around the first-probed point and infer a normal vector from that (and a spherical curvature with a central point) but that is still making assumptions. What I have tended to do it (in 2D) import all the points in to CAD, create a profile and then offset it. See, for example: https://youtu.be/wV8aZUNWMCg?t=83 -- 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-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
