Referencing a datum from another view
Referencing a datum from another view
(OP)
Please excuse me a little as I am not a trained engineer and am not sure of the terminology.
I am attempting to reference from one drawing view a datum target in another view. Basically, I have to locate a feature based on the location of a feature visible in aother view.
The datum target is the center of a hole. I easily mapped the datum target to this hole center by first drawing a line from the hole center and attaching the datum target to the line.
Now I need to be able to dimension from that datum in other views. I would have thought this was the entire purpose of employing a datum, so I'm sure there is something obvious I am missing.
Thanks.
I am attempting to reference from one drawing view a datum target in another view. Basically, I have to locate a feature based on the location of a feature visible in aother view.
The datum target is the center of a hole. I easily mapped the datum target to this hole center by first drawing a line from the hole center and attaching the datum target to the line.
Now I need to be able to dimension from that datum in other views. I would have thought this was the entire purpose of employing a datum, so I'm sure there is something obvious I am missing.
Thanks.






RE: Referencing a datum from another view
View alignments can be broken, so each view should be 'self-sufficient' and show its own datum.
BTW, forum1103 is the Drafting Standards, GD&T & Tolerance Analysis Forum
RE: Referencing a datum from another view
I am working off a set of published prints where datums are referenced in many different views. In some of the views, there is only the datum floating without reference to its anchoring feature (which is visible in another view). These are necessary because the anchoring feature from which a feature in one view is referenced is invisible in that view.
If datums cannot be referenced across views, what are they used for?