Flexible Bellow Deformable

[NutAce]

Hello All...

I'm trying to create a deformable flexible Bellow.

In the attached part Bellow_2 I have 3 important expressions to deform X_Offset, Y_offset and Nominal Length (z_offset).
If I change these expressions in the part itself (move the offset csys) the bellow "Deforms" as expected , the pattern along the path follows nicely.
However if I apply the deform in an assembly the pattern fails... For the deform I have selected everything and used the above mentioned offsets as driving. (number ranges)
What could be the reason here?

Ronald van den Broek
Application Specialist
Winterthur Gas & Diesel Ltd
NX8.5.3 / TC9.1.2
HPZ420 Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz, 32 Gb Win7 64B
Nvidea Quadro4000 2048MB DDR5
HP EliteBook 8570W Intel(R) Core(TM) I7-3740QM CPU @ 2.70GHz, 16Gb Win7 64B

 

[Toost]

I wonder if the pattern feature along curve "flips" the direction. ( I can't prove that, its my assumption)
If you try that in the bellow part the pattern will not update.

Try to only select the spline as the path for the pattern in the bellow part. ( single curve instead of Tangent curves)
Then the deformable part works for me.

Regards,
Tomas

 

[NutAce]

Tried to change the path to only the studio spline...
Doesn't make a difference...I still end up with only one fold after deformation...
Strange thing is , if you make the bellow workpart after deforming it, you can see th esketches are patterned correctly, the extrusions are not created though.


Ronald van den Broek
Application Specialist
Winterthur Gas & Diesel Ltd
NX8.5.3 / TC9.1.2
HPZ420 Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz, 32 Gb Win7 64B
Nvidea Quadro4000 2048MB DDR5
HP EliteBook 8570W Intel(R) Core(TM) I7-3740QM CPU @ 2.70GHz, 16Gb Win7 64B

 

[Toost]

It did work for me, i tried it in NX10 why i didn't post the part.
I changed the selection rule and then re-created the deformable feature in the bellow part.
( btw , i removed the sketch from the pattern feature without thinking too much about it, might that depend ?)

I can try see if it's a difference in NX9

Regards, Tomas

 

[NutAce]

Hi Thomas...

Removing the Sketch from the pattern did work indeed...
I also created a version without the pattern (5 extruded sketches at pitch interval). this also worked (with sketches included).
So there seems to be something wrong with the pattern and how it handels the extruded sketches...

Tested this also in NX9 and there the behavior is the same...

Ronald van den Broek
Application Specialist
Winterthur Gas & Diesel Ltd
NX8.5.3 / TC9.1.2
HPZ420 Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz, 32 Gb Win7 64B
Nvidea Quadro4000 2048MB DDR5
HP EliteBook 8570W Intel(R) Core(TM) I7-3740QM CPU @ 2.70GHz, 16Gb Win7 64B

 

[bellowsmfg]

Ronald,

Have you resolved your issues with the modelling of the below?

Regards

Conor Walshe

http://www.bellowsmfg.com

Bellows Manufacturing and Research, Inc.

https://bellowsmfg.com

 

[NutAce]

Hi Conor,

Like stated in the posting before yours, The removal of the sketch from the pattern sovled the problem.


Ronald van den Broek
Application Specialist
Winterthur Gas & Diesel Ltd
NX8.5.3 / TC9.1.2
HPZ420 Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz, 32 Gb Win7 64B
Nvidea Quadro4000 2048MB DDR5
HP EliteBook 8570W Intel(R) Core(TM) I7-3740QM CPU @ 2.70GHz, 16Gb Win7 64B

 

[bellowsmfg]

Thank you for clarifying Ronald

Bellows Manufacturing and Research, Inc.

https://bellowsmfg.com