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Critical thing you MUST know about "deformable part" !

Critical thing you MUST know about "deformable part" !

Critical thing you MUST know about "deformable part" !

(OP)
Dear all,

NX 9.0.1.3
I discover something important in "Deformable part" this morning.
I have to share it here.
Maybe it was already explained or reported, I don't know, here it is.


We have and "arrow". Manufactured flat, from a sheet metal, but then wrapped on a cylindrical faces in our assemblies.
We can import it, on Absolute Origin, and we can deform it.
But when you want to move/rotate it or apply some assembly constraints, some feature then failed . Why ?

Because an extrude was using a "fixed" vector as a direction !
So, you must NOT use any "fixed" direction in any of the feature.
Always link the direction to something parametric such a datum axis, a plane/face normal, an edge.


How I discover it ?
During troubleshooting, we had the idea to delete the deformable part definition inside the original component as it was already inserted as such on an assembly.
Doing so, NX is replacing a single line defining it with the all features from the component.
We then understood that the deformable part, at the assembly level, is like an "import part" !
And then, I had the idea of checking if something was fixed in a specific direction.
Seeking within all the "project curves" and "extrude", we find one using a "fixed" direction.
Replacing this "fixed direction" by a datum axis from the first Csys solve the issue.

I think I can apply for a job in GTAC with this one .... !

Stéphane

"My english is bad ? That's why i'am french."

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