Large Assembly Structure

[MFDO]

I was told that for better performance, the main assembly and its main sub-assemblies should only contain datums and reference geometry (=considered as initiated by Assembly Template) and under those sub-assemblies, parts and components (=considered as initiated by Part Template). Like in other CAD, NX doesn’t have two type of designated Assy/Part templates structure, should it be considered such a method when building a large assembly in NX? Is this true?

Michael Fernando (CSWE)

http://www.solidCADworks.com

Tool and Die Designer
Siemens NX V8.5 + PDW
SWX 2013 SP3.0 X64
PDMWorks 2013
Logopress3
FastForm Advance
FormatWorks

 

[PrintScaffold]

Unified file format used by NX well may be the very best idea ever to emerge in a CAD market.

Industry creates wealth!

 

[MFDO]

It may be a good method but it allows to take shortcuts; dropping parts at any level. In a demanding situations it’s natural to take shortcuts without following the rules and making a messy design that nobody else could work.

My other concern is avoiding circular references in the "LARGE ASS'Y STRUCTURE". I suspect the way NX users are getting around this is by using “Remove Paramerter” at those situations and sacrificing prarmetric behaviour of the design.


Michael Fernando (CSWE)

http://www.solidCADworks.com

Tool and Die Designer
Siemens NX V8.5 + PDW
SWX 2013 SP3.0 X64
PDMWorks 2013
Logopress3
FastForm Advance
FormatWorks

 

[cowski]

My other concern is avoiding circular references in the "LARGE ASS'Y STRUCTURE". I suspect the way NX users are getting around this is by using “Remove Paramerter” at those situations and sacrificing prarmetric behaviour of the design.

No. At least not the users that know (and care about) what they are doing.

In a previous post you mention working with outside design firms. I've also been in that situation, you can get some crazy files from people of questionable skills. Determine some rules that work within your group, then make sure those rules are added to any contract paperwork with these outside firms.

www.nxjournaling.com

 

[PrintScaffold]

It may be a good method but it allows to take shortcuts; dropping parts at any level. In a demanding situations it’s natural to take shortcuts without following the rules and making a messy design that nobody else could work.

My other concern is avoiding circular references in the "LARGE ASS'Y STRUCTURE". I suspect the way NX users are getting around this is by using “Remove Paramerter” at those situations and sacrificing prarmetric behaviour of the design.

The thing that's needed in this case is called 'design methodology'. The set of rules which all designers have to follow. I know from experience that it's not easy to enforce and to get used to using one, but once desinger have taken it into their heads the benefits are obvious for both them and the company.

Also, once good design methodology is developed and implemented at your site you will really understand and appreciate the single part format the NX provides.

Industry creates wealth!