So I'm not sure of the format for these things, but I am at my wit's end with this CMM program. When I run the routine, the program moves some features (circles specifically) from their position on the CAD model (which I used to define them using auto-circles) to something like a thousandth of an inch along the -Z axis. This is playing havoc with a number of measurements, but the diameters are reported as being within tolerance.
I've tried using positioning dimensions to anchor the circles, reentering the coordinates of the centerpoinso manually, using each circle as a datum for another feature, and I have double-checked to make sure that the CAD model is correctly dimensioned.
Why are features being moved when I run the program, and does anyone know how to make it stop?
As Don said are the Nominals changing or are you visually seeing the measured circles not on cad? When you run your program the points and circles show the measured location on the screen not the nominal location. You can reset measured to nominal to reset the points to get them visually on the screen correct.
As Don said are the Nominals changing or are you visually seeing the measured circles not on cad? When you run your program the points and circles show the measured location on the screen not the nominal location. You can reset measured to nominal to reset the points to get them visually on the screen correct.