Thanks guys, things are clearing up a lot.
While you guys are talking about using CMM to get center plane form 2 surfaces. I was wondering, will the Datum plane C be different when using CMM vs using Angle blocks/gauge blocks?
I came across a post about gd&t with this drawing
I am struggle to make sense of it.
Datum plane B is created by 2 faces while perpendicular to Datum plane A.
Datum plane B already control the 2nd translational and 3rd rotational freedom.
Datum plane C is supposed to be perpendicular to Datum...
I am working on a drawing with a bunch of holes. Those holes were scattered around the product with another set of similar looking holes. How should I indicate which hole belongs to which set? (apart from dimensioning them on different view)
I was wondering if it is ok to use annotations...