Drawing of assembly

[Michel1978]

Hello,

For some reason I can't create a drawing of an assembly. The assy itself is about 12MB big with one component of about the same size. When NX starts to make the drawing it begins to update and never stopts updating.
What settings can I change to get quick a drawing of a big assy?
See also picture of assy. And its not even detailed yet! This is only a concept design.

I use NX5.

 

[looslib]

When you say 'never stops updating', how long are you waiting?
What is your hardware specs?

Just looking at that image, it will take a while to generate a hidden-line drafting view.



"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

 

[hudson888]

I don't know why it is really taking so long the model while reasonably complex and large does not seem to be beyond what I would expect NX to be able to handle on reasonable hardware. Try adding the view based on "Faceted Representation". Just begin to add a base view as per normal, then before adding it click on the style button under the settings heading and change from "transfer annotation" to "Faceted Representation" using the tick box. This is under the base tab of the View Style dialog, but usually presents as such without your needing to navigate to it.

This technique is the recommended method for working in drafting with larger models. It does render more crudely but you can add dimensions in most cases with no noticeable difference.

However if you have need of the original to work then I'd suggest running examine geometry over most of what you've built to check whether it is some geometric anomaly rather than the size of it that is terrorising your system!

Best Regards

Hudson

www.jamb.com.au

Nil Desperandum illegitimi non carborundum

 

[Michel1978]

Thanks for the replies.

I waited for more then 10 minutes and nothing happened.

But I tried the "Faceted Representation" and that worked! A disadvantage of that, I found out, is that it's not possible to place a dimension on virtual edges, like the "edge" of a sphere. And the plots are also as facet. Is it possible to change the facet view to normal view or to change the tolerance of the facet?

Thanks for your help.



I use NX5.

 

[hudson888]

Okay we've found out that the facet view makes an improvement which means we've learned something. Try examining the geometry or hiding most of the components before you create a normal view so that you can sneak up on the point where you system fails. At the same time perform clearance analysis to ensure that overlapping and intersecting components are well understood. By the end of such an exercise you may be able to identify some changes that you could make to help things work much better.

Best Regards

Hudson

www.jamb.com.au

Nil Desperandum illegitimi non carborundum

 

[looslib]

I have a 64bit machine with 8GB of ram and a quad core processor, Nvidea 512MB FX1700. I am currently regenerating a 21 sheet drawing, split into 2 files to keep size down. A single view sheet is taking about 8 minutes to regenerate. I had 1 sheet with multiple views Friday night that ran for 24 minutes.

Patience works wonders at times. Not ideal, but that is the nature of the beast. I am writting this while regenerating another sheet.


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

 

[hudson888]

Running a lesser spec that yours I similarly created a 1Gb vehicle body in white assembly and was able to get views to regenerate with hidden line removal within a few minutes each using solid geometry.

I expect large models to take some time but I suspect that when they take too long their could always be some problems with the geometry.

One tip for new players is to turn off shaded previews and hidden line erasures in views that you are adding while you're adding them to the drawing if the geometry is very large. You can always change the view style afterwards to produce the final result.

Best Regards

Hudson

www.jamb.com.au

Nil Desperandum illegitimi non carborundum