Link between analysis result values and expression 2

[Anilkuber]

Hi,

Please help me to use Values displayed after Analysis>Measure body command.
Actually in one of my task I have to use centroid value along Z axis displayed in Analysis result window for expression given in sketch.

Is it possible to do so.

Best regards,
Anil Kuber

 

[cowski]

What version of NX are you using?

www.nxjournaling.com

 

[Anilkuber]

NX7.5

 

[cowski]

Make sure the "associative" option is turned on when you create the body measurement; this will create a point at the body COG. This point object can then be referenced in your sketch.

www.nxjournaling.com

 

[Anilkuber]

Thanks Cowski,

I tried it and it is working. But I am checking that position of that changes or not after modification in model.

Thanks.

 

[cowski]

Well, here's the problem...

The body measurement is timestamped in the feature tree; any modifications made after the measurement will not be taken into account.

www.nxjournaling.com

 

[Anilkuber]

Oopps It dosen't work. But this solution is helpful in some cases. Thanks again.

 

[cowski]

What exactly are you trying to do with the centroid information?
I ask because there is a trick involving an extracted body that will keep the COG up to date. If you only need the COG for informational purposes it may work for you, but if you want to use the COG to drive the location of a new feature, it may not be useful.

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[Anilkuber]

I want to show location of COG tuning wheel (Flywheel) along rotational axis on drawing. Therefore it is necessary to have associative point or sketch which changes as per changes in model.

 

[cowski]

The body measurement creates a point object which you can reference on your drawing. If no other features in the part make reference to this point object, you can simply reorder the body measurement to be the last feature in the tree after making changes to your model.

The trick I mentioned previously may help in this case. Create an "extract body" feature, making sure that the "fix at current timestamp" option is turned off. Now use the measure body function on this extracted body. The extract body is an associative copy of your model, and by turning off the timestamp option, it will always appear at the bottom of the feature tree (it will be an associative copy of your most current model). In this way, the body measurement will reflect the changes made in your model without the need to manually reorder the feature. Be sure to remove the extracted body from any reference sets so that it is not accidentally included in any drawings or assemblies.

www.nxjournaling.com