Thanks for the replies. This is a plastic molded part. This part, along with a mirror of this part use these holes align mating components (rods) between them. Just to be clear, only two holes are datums. This was done for measurement purposes.
My remaining question; is there a way to...
I was given a drawing by my design to review and forward to a supplier. I will describe a simple version of the part. Consider a bar with three holes in them. The face of the bar is Datum A. The center lines of holes 1 and 2, most important holes, are Datums B and C. Hole 3 is also important...
