I have just started a new job with a foundry company. My first goal was to certify or calibrate, what ever you want to call it, between three different fixtures. One of the CMM holding fixtures used to do PPAP layouts, in the lab and one out on the floor for production checks of gate height and center bore Dia. w/ T.P., the third is a variable gauge used to check true position of the part, using a digital indicator spinning it on top of a center post at the theoretical center. The fixtures are all alike in that their datum setups are the same basic 3,2,1, with the exception that all of them are offset from each other.
Example z plane pt. 1 = 0 , pt 2 = 45.0, pt. 3 = -39.7 ; y line pt.1 = 0, pt. 2 = 1.18 ; x pt. = 0. The previous people in this position did not have a written procedure for this task. I have been told to touch the datum pts. setting up the alignment systems that way and also us the base plate to setup the alignment system and check the location of all other datums based off of the z1 datum pad. I have found every little correlation if any at all between the fixtures using the same part to verify each of them. I am looking for any and all help in resolving the proper method.

THANKS FOR READING AND RESPONDING TO ALL WHOM DO!!!!

TROY D. MORRIS