Anyone used a coordinate measurement machine and know how they do? Maybe I happen to have manual but will probably not have to much time to look into it this week.
> I think it comes down to constructing lines perp to the profile at > probed points. CMM's obviously take care of this somehow. > > I've done it the hard way by drawing circles the diameter of the probe > and then doing three pt arcs to fit. Certainly there are better and > considerably more elegant ways to do this. What I can visualize in > concept I cannot convert to good calculations. ;-) I passed calculus > but knew better than to try dif-e-q. A second order curve fit tangent to > multiple circles might be a better approach. > > "Implementation is left as an exercise for the student." :-) > > Dave > > On 2/4/20 3:57 AM, andy pugh wrote: > > Does anyone have a G-code routine to probe around a profile to trace it out? > > > > I imagine some sort of "keep turning right" algorithm should be able > > to walk round a profile, though exactly how you compensate for probe > > diameter on external corners has me a bit stumped. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
