I am measuring how far apart 2 the centers of 2 cylinders are plus their radi. This is to see how wide this cavity is. So I selected distance measurement, clicked my 2 cylinders across an axis and then selected add radi. Is that calculation taking into effect the size of the cylinder? So if 1 diameter is larger than the other, that distance will be longer? That tolerance is huge with +/-0.020". I am also measuring the location of the centers of the cylinders with a +/-0.0025" tolerance which is failing. I'm having a hard time explain this to the designer who says the CMM isn't correct.
