Autodesk Inventor

[#1]

What is the thinking on large assemblies & work geometry

We have large assemblies (1,000 parts, 20,000 occurances).

 I have users leaving work geometry  on in their parts. (work planes, work axis and even sketches)

Typically we turn off visibility of these in the assembly by creating a representation and turning all work features off.

The question is, even with this turned off in the assembly, will it slow the system down?  video and / or processor?

The visibilty may be turned off but the machine could still be calculating in the background.

[#2]

Turning the visibility off will help performance; however, not as much as part suppression. You’ll notice in the shrinkwrap options the option to “include” work geometry is given. This is to remove the work geometry from memory and gain performance. Design views\hiding work geometry will not accomplish the same performance for this reason.

Thanks,

[#3]

Thanks for the reply.  I was being specific with Work geometry and not parts. 

 Is it better to off work geometry in the part or remove visability in the assembly.

The shrinkwrap note is helpful.

[#4 · Accepted solution]

The only way to remove an item from memory is to suppress it. Removing work features from the visibility at either level, part or assembly, will only minutely change performance. Each occurrence regardless of visibility is continually calculated in the background.

The real driving reason to turn off visibility at the part level is it improves the assembly experience. The object visibility filter can be used to manage work features in the assembly instead using it to filter "clutter" from the parts. Hope this helps.