Let's say I have a thin plate with a hole in it:
I'd like to control the position of the hole relative to the midplane of the part. Is a single datum as shown sufficient, or should I also have a datum on the large surface perpendicular to the hole? If so, is it necessary to qualify Datum A...
I have a 2D (die cut) part, where I'd like to dimension the distance between a hole and a curved edge. The measurement needs to be taken parallel to the long straight edges of the part; if it's measured at an angle the nominal would change. Is the measurement orientation implied already? How do...
What's the best way to apply a 'flushness' tolerance to two nominally coincident surfaces? Is there a good way of doing so without needing to specify a datum?
In this example, axis C is a tertiary datum for several other features, locating them in the left-right direction. If axis C is not perfectly perpendicular to datums A & B, this seems to create an ambiguous datum. Each end of axis C could be at a slightly different left-right position. How would...
I have a grey part (A) with two concentric holes, that form a hinge along with a blue mating part (B) and two pins:
I want to ensure that part B will be aligned with datum Y on part A once assembled, so need an axis between the two holes in A to be perpendicular to datum Y. I can think of two...
