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Tolerance stack up using PMI

Creator
Creator

Hi all,

 Is it possible to perform tolerance stack up analsyis in model itself using PMI dimensions and GD&T .

 

Thanks , 

Kiran 

8 REPLIES

Re: Tolerance stack up using PMI

Pioneer
Pioneer

Hello

 

I have asked the same question in another NX Forum. I wanted to know if there is some kind of an "Envelope around Tolerance Stack-up" Feature, much like a clearance analysis. At that time the answer was no.

 

Happy to know more about the current versions of NX as well

 

Cheers

 

MArco

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Re: Tolerance stack up using PMI

Gears Phenom Gears Phenom
Gears Phenom

Not in NX that I know of.  In the Old I-Deas software we had a 2D tolerance stack analsyis.  Siemens does offer the VSA.  It is an extra license and cost and works with visview I think.  I would like to know more about how this works and how it functions.

Re: Tolerance stack up using PMI

Visionary
Visionary

VSA is the answer to your question. You can load a NX database with PMI applied into TcVis via VSA/Technomatics and utilitize the PMI. There is a bit of a learning curve like with any software but it will allow you to monte carlo stackups and make easy quick changes with quick results. Hope that helps. Siemens offers training and there are other resellers that offer training as well.

Re: Tolerance stack up using PMI

Creator
Creator

In one of the document it is mentioned that tolerance analysis can be perofrmed , but how to do that is not explained.

Re: Tolerance stack up using PMI

Gears Phenom Gears Phenom
Gears Phenom

I remember something years ago when we switch to NX from I-Deas there was a tolerance stack function.  But when NX went to 64 bit this functionality was not updated to work on a 64 bit system.  But My memory about this could be fading also about this.  Good topic.

Re: Tolerance stack up using PMI

Dreamer
Dreamer

There are two apps for NX that can use PMI and GD&T to do stack ups. 

 

3DCS and VisVSA, as previously mentioned. I know 3DCS is integrated, so it is activated as a workbench right on your model. 

 

Here's a quick link if you want to learn more - http://www.3dcs.com/tolerance-analysis-software-and-spc-systems/3dcs-software

Re: Tolerance stack up using PMI

Siemens Phenom Siemens Phenom
Siemens Phenom

TSV (tolerance stack-up validation) was there in NX (cannot remember till what version it was supported but i guess NX8/8.5 was the last supported version and that too with an env variable).

Now we have VSA or the variational stack-up analysis  which can work on the PMI attached to the model.

Best Regards

Kapil

Re: Tolerance stack up using PMI

Siemens Phenom Siemens Phenom
Siemens Phenom

TSV was there till NX 8 which was then replaced with 'Variation Analysis' (known as VSA) and it supports on 64-bit windows platform.

Regards,
Ganesh
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Tolerance stack up using PMI

Creator
Creator

Hi all,

 Is it possible to perform tolerance stack up analsyis in model itself using PMI dimensions and GD&T .

 

Thanks , 

Kiran 

NX PMI MBD
NX PMI MBD

This group is dedicated to the topics of PMI (product and manufacturing information) and MBD (model-based definition) in NX.

If you have a question, please post it in the NX Design Forum.

We also recommend you be a PLM World member, as this group supplements an annual roundtable at PLM Connection.

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