I have holes that I could only create as single point circles (they are 4-40 threaded holes) that have a true position call out. I created a position dimension and matched the feature control frame to the drawing (using 3 datums) but PC-DMIS reports failure that is far out of tolerance. When I looked at each of the basic dimensions I found that the y and z basic dimensions are close to nominal but the x dimension is far out of nominal. With the datum structure i put in and the CAD model, PC-DMIS designated the x axis going into/out of the part which is not relevant to the callout. How do I get PC-DMIS to calculate the position solely on the y and z planes?
generic circle, use the 'point' and the diameter from the single-point-circle, then dimension that, should be able to use all the standard position 'tricks' then (I would think, anyway)
generic circle, use the 'point' and the diameter from the single-point-circle, then dimension that, should be able to use all the standard position 'tricks' then (I would think, anyway)