Forgive my ignorance. i just finished up cmm 101 and have not been using a cmm for quite some time. attached is a photo of what i am trying to measure. A and C are planes and B and D can be circles or cylinders I am trying to get this aligned so i can check the bores for roundness as well as concintricity any suggestions i was going thru my notes and have not seen anything to help. is it possible to make B and D a compound datum?
