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Datum Target Points in Merged Model

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Datum Target Points in Merged Model

I'm working in CREO 4 and I have a casting model with datum target points defined in it and then I have an external merge setup for the machining model. I need to reference the datum target points from the casting model to establish my machining datums but I can't find out how to get these target points and datums to show.

 

Please help.

13 REPLIES 13
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Re: Datum Target Points in Merged Model

Assuming you have "point display" checked, when you regenerate the merge part the datum points should display.

Also check if the points are associated with a hidden layer.

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Re: Datum Target Points in Merged Model

That works to show the points but is there anyway to carry over the datum annotation feature and datums or do I have to recreate them in the machining model?

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Re: Datum Target Points in Merged Model

Now I see what you want; as far as I can tell, yes you have to recreate them in the machining model

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Re: Datum Target Points in Merged Model

Have you tried making it an Inheritance instead of a merge?

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Re: Datum Target Points in Merged Model

I tried this but couldn't get it to work either.

 

I'm also not sure of the difference between the 2.

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Re: Datum Target Points in Merged Model

If you bring in the casting model as a workpiece in the manufacturing assembly, doesn't it bring in the datum points you need, too?

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Re: Datum Target Points in Merged Model

The points carry over but the datum target annotations do not.

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Re: Datum Target Points in Merged Model

Are the datum targets annotation features? If they are features then you should be able to use an inheritance feature to pass them from the source to the target model. I have not confirmed this (for annotation features) but inheritance allows for feature level control when passing to the target model. Annotation features did not exist when the inheritance was first implemented so they may not behave as other feature classes in this context.

 

One of the use cases for inheritance was specifically for cast/machined designs so it is useful for that. I have some data on the implementation of inheritance vs. merge functionality, I will post that when I dig it up.

 

 

Re: Datum Target Points in Merged Model

I tried to do that and then do "show model annotations" but nothing comes across. I created these using the "datum target" feature under annotations and then created a Datum A with the datum tag feature (names might be wrong since I don't have creo in front of me)

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