Cutaway view impossible

When I want to make a cross-sectional view of certain assemblies, I have the preview of the cross-section, but when I validate I get a message "Making a section in this place will produce invalid bodies. Please select a different section position". No matter how much I postpone the plan, he refuses.

 

My assemblies have almost all WWTP parts from Creo.

 

Does anyone know how to solve this?

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Hello Benoit,

This often happens on large assemblies, especially those composed of parts with many surface bodies.

Sometimes the solution is to move, even very slightly, the cutting plane. But it's not a miracle solution.

Hoping you'll find a solution.

Kind regards.

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Hello

If it is a surface WWTP, you may have to try with solid WWTP. Maybe it's cutting out surfaces that he doesn't like too much.

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A solution make a copy of your assembly and on this copy of the fact an elevation of material to the right of your cut

@+ ;-)

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That's the mason's solution, lol  ;)

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Hello

 

Have you checked the management of surfaces in the cut?

 

@+

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Indeed, it is an alternative. I did it directly in the original assembly, without a copy. There is normally not much risk.

 

 It also allows me to visualize the parts that are causing problems, because SW warns that he will not remove material from certain parts. Once the "cut" is finished, the problematic pieces appear whole.

 

Thank you very much @ gt22

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It was a simple and quick solution (a bit crude I admit) delighted that it suits you

but I would have in your place copy your assembly to make it you never know if you have anything else to do

@+ ;-)

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What are your fears?

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If you still need to make cuts via the same walkthrough you'll end up with a puzzle, that's all

now if it's to intervene inside an assembly to find and modify elements no worries

@+ ;-)

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OK I know what you mean. No, these are light assemblies in terms of the number of parts. I usually only need one cup.

 

A+

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Usually, when I have this kind of problems, it comes from the equivalent of SW's "zero thickness" error.

My usual palliative is to shift the location of the cut by 0.01mm in the property manager.

It doesn't always work, but often. This problem is recurrent with assemblies imported in the surface area.

If you have found a better solution, can you tell me?

Thank you

@Pascal: that's digging!

 

I do practice the technique of shifting. But in the case indicated, it is not enough. The problem comes from parts with errors. Piece that go into wobbly surface. And indeed it's almost always due to "zero thickness"

 

The palliative is, as indicated above, a removal of material in the assembly, throughout. And then he cuts almost everything, except the parts that are problematic for the cut. I can then spot them.