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AltRep best practice

Solution Partner Legend Solution Partner Legend
Solution Partner Legend

Hello everyone!


I am not experienced with AltReps as of yet, and I have a quesion.


If using AltRep to model alternative states of parts at different levels of the assembly, what is really the best pracitce? I came up myself with the following scheme. Let's assume I have a part that looks different as a piece part, and at the assembly level. Might be some bending or you name it. I see that I can use AltRep the following way:



|___ Part (suppressed)
|___ Part altrep


This way, I can only see altrep at the assembly level, and weight along with other geometric properties will be calculated alright. Higher levels of assembly would also display everything correctly.


This seems to be very useful for complex cases when parts are changes substantially at the different levels and might even change many times - I came across cases like this one. 


Would you call this scenario a good practice to use AltRep? Or maybe some better ways exist?


Re: AltRep best practice

Siemens Esteemed Contributor Siemens Esteemed Contributor
Siemens Esteemed Contributor
I don't know about better ways, just alternatives. Another example would be if your parts are supplied by different manufacturers and may have slight modifications or have different material properties. I've also dealt with cases where there was a right and left hand configuration but they both had the same part number. In these cases you wouldn't necessarily suppress the original part, you just replace it with the alternate representation. Referring to the example you mention, where a part is different at the assembly level, you usually see components WAVE linked and edited, or deformed (using Deformable Part) at the assembly level.

Ben Broad | PLM Enthusiast | Siemens GCSS

NX (v17 - 1876) | Teamcenter (9 - 12)
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Re: AltRep best practice

Solution Partner Legend Solution Partner Legend
Solution Partner Legend
Sure, usually more traditional ways to model changes at the assembly level are applicable. But there are some cases - as the one I am working at currently - which simply exceed capabilities of tools like deformable part or various machining-after-assembly tools available in NX. Shame I can't go into details, for they are strictly proprietary, but the case is interesting.