here's (assuming this works) a pic of an approximated version of the part we're discussing. I've simplified and modified things a bit. The dims I've put on here are just for the sake of...
I'm not really trying to withhold information, it just seemed more interesting to discuss it without getting bogged down in the specific details of my example. The two bores which I'm going to call B and C are not the same size. They are sized to press fit off-the-shelf round and slotted...
Thanks for the responses. I think this confirms my thought which was that I could have 0,0 wherever it "needs" to be even if that is not a datum which will be used to locate critical features. I think this introduces the possibility for confusion by vendors, but my alternatives are worse in...
It's a round part with a round bore in the middle (approx 24" bore). The issue is that the round bore is just clearance and is not critical to part function and so I'd like to not have it be datum. The other (smaller ~ .5") bores are not at center but ARE critical to part function and serve as...
This is not how I would prefer to detail a part, but there is a specific motivation I won't go into.
What I have is a large part with many features. I have 3 datums selected (a plane, and two bores). The part is round and neither of the bore datums has axis at the center. Now, for a few...