Thanks for all your replies.
The "second" XYZ datum set will be used in machining the castings.
Unfortunately, the print doesn't reference the ASME spec. Some of this customer's prints do, but bot this one. It ref's their own internal spec, which really doesn't cover this. So, technically...
As fabricated the parts would seat differently, depending on which datum setup they were in. For instance, if I was required to inspect a point on the root surface, I wouldn't be surprised to get different readings on that point in the different setups. Depending on how badly the part was...
Hopefully this is a simple question.
Do Datum planes need to be UNIQUELY defined?
I've got a customer blueprint in front of me. Note 5 says Plane X is defined using Datum Target Points X1, X2 and X3. Plane Y is perpendicular to -X-, through Target Pts Y1 and Y2. Plane Z is perpendicular to...
Looks like they spent all their time and money on developing the ribbon interface. I see almost nothing in the way of new functionality (versus Q11).
Also, I was never a fan of FEATURES... I preferred using DATUMS in Q11. But datums are gone in Q12. Ouch.
They need more tools in their...
Typically, when we DO see datums specified on a surface profile callout, that tells us to set the part up to datums and measure the surface relative to those datums. No best-fitting allowed.
Also typically, if we DO NOT see a datum reference frame on a surface profile tolerance, that tells us...
Typically, when we DO see datums specified on a surface profile callout, that tells us to set the part up to datums and measure the surface relative to those datums. No best-fitting allowed.
Also typically, if we DO NOT see a datum reference frame on the tolerance, that tells us we are allowed...
