Shifting Circles in Base Alignment

[[Is...]]

Inspecting a pinion that is ran inbetween centers on the grinder, with a bearing dia on top and one on the bottom. I cannot access the centers for my pick up. Engineering wants me to provide shifts reflective of how the part runs between centers. If the machinist was to write down their runout on the top and bottom bearing diameters, and I pick those up as circles, is there a way for me to "shift" those circles individually to reflect where those circles sit relative to the centers? I would then snap those circles into a 3d line and then use that rotation in space, x/y. 

 

Attached is a pic of what im trying to reflect, I would assume 1 circle would be X0/Y0 and the other I would shift the delta in each axis relative to that?

 

 

[[Ma...]]

Really you can not do special probe system and fixture to be able to measure all at once?
For center cones would be perfect self centering point.

From this drawing i can not imagine what is needed to be measured or how you place your part into a machine.

If you place part to have aligned axis with direction of runout, then you can use that axis for rotation from machine.
Then you use what you want as 3d line.
But use ordinary base system from cylinder. Calculations leave for evaluation or program alignment, not for base alignment. It will keep you away from future problems.

If needed we can talk in PM to not share everything to public.

[[Ma...]]

The drawing doesn’t depict how big this part is but I would measure a circle on A, CircleA1, then a circle on B, Circle B1. If the shafts of A & B are long enough I would add another circle on each shaft, CircleA2 and CircleB2.

Create a 3D Line. This will become your Rotation in space and your origin. There appears to be no Planar rotation, or clocking. Now do a self centering point in each of the centers. Report out their deviation from the origin. They should come back close to zero unless the relationship of the centers and the shafts are off.

[[Ri...]]

Use a V-block on the large diameter, this will give you access to the centers and A, B.