Brain failure: Interaction of Skeletons, Configurations, Equations

Perhaps I'm missing something here, but I'm having a devil of a job
trying to acheive something that I think should be reasonably easy.
I want to create a product assembly that is driven by a skeleton part
so that I can change the overall dimensions in the skeleton and have
all the parts reconfigure accordingly. (so that I can experiment with
the appearance/proportions of the product till its right).
I read that to produce robust assemblies one should place the skeleton
as the first part in each assembly, and refernce everything to it.
The product comprises 3 pieces of the same assembly in 3 different
configurations ie:
Product
Assy1-ConfigA
SkeletonPart
PartX-ConfigA
Lots of Other parts
Assy1-ConfigB
SkeletonPart
PartX-ConfigB
Lots of Other parts
Assy1-ConfigC
SkeletonPart
PartX-ConfigC
Lots of Other parts
The dimensions in PartX are inevitably driven by equations (because
they reference dimensions in the Skeleton part). But when I change the
Skeleton part, the configs do not adjust correctly.
Is there a way to do this so all the changes cascade thru the product
automatically? Where can I find detailed info on how best to handle
this?
Thanks
Mitch
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Mitch,
We have done some work with skeletons, largely based on techniques learned through Pro/E.
The most useful info I have found on handling this comes from a Pro/E user conference. You can download the presentation from:
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Its called "Top-Down Design, An Evolving Process at John Deere".
The presentation focuses on planning a top down design, pitfalls to be wary of, and alternative ways to achieve skeleton-driven assemblies.
Some of the Pro/E functions can be replicated using SolidWx tricks like envelope, joined part, saving and re-importing parasolids, assembly sketches, multiple solid bodies etc.
Good luck,
Anthony
Reply to
Ant.
There is a KB article on equations in assemblies and sub assemblies. Try CTRL-Q twice or more. Does that help?
snipped-for-privacy@yahoo.com wrote:
skeleton
Reply to
P.
If you are suppressing equations on a config-specific basis, USE A DESIGN TABLE to control equation suppression state. Not doing so results in erratic behavior.
Also, if the skeleton part has multiple configs, perhaps PartX is reading the wrong instance or config of SkeletonPart.
TIP: Use envelope components for skeleton parts, as they don't show up in the BOM.
Reply to
That70sTick
Many thanks. Very helpful. After reading the presentation I realise I'm not alone in this!
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