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"Flex" in NX

"Flex" in NX

RE: "Flex" in NX

There is a flexible component command in NX. Looking at the video of the tube, that seems doable today. The gear I am not sure of, but I am guessing that it is Parasolids that is doing the actual flexing, not SW, so NX would only need to have an interface to those PS routines. Wildfire also has a flexible command, but I haven't tried it with a gear like that.
One caution of doing that to a gear is that the tooth shape may not match the specs when done because it is a twist of the straight tooth shape.

 

"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

RE: "Flex" in NX

afaik is SW working in this case/command not witk parasolid it is done with CGM /spatial

RE: "Flex" in NX

(OP)
actualy the gear for me is not intresting so much :) much more i am interested in this rectangular tube (video link nr.1). we are working with rails. so imagine 25meter long rail with drilled holes in the neck. then this rail is bended (radius 200-1200meters).
it is quite dificult to "drill" holes in swept rail (no planar faces). John suggested one method, but this method is not very handy, if there are a lot of holes.
http://www.eng-tips.com/viewthread.cfm?qid=291360&page=2
 

RE: "Flex" in NX

(OP)
to looslib: what "flexible component" command in nx7 (nx7.5) you mean?

 

RE: "Flex" in NX

I haven't used NX in over a year and the last time I played with flexible components was in NX1!
If I remember, you build your piece part, then define an axis or line as driving the flexibility. When you bring that part into an assembly, you create a spline or whatever shape you need, then tell NX to 'map' the defined flexible line of the component to the shaped curve in the assembly file.
 

"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

RE: "Flex" in NX

In NX we call this a 'Deformable Component'.  What you do is create a parametric model where there are either expressions or referenced object, such as a curve used as a profile or a path for a sweep, etc which is what you wish to be 'deformed' when used in an Assembly.  You then use the function found at...

Tools -> Define Deformable Part...

...to define which parameters/reference objects (these are the ones that will control the 'defomation') that you wish to be supplied at the time you instanciate the component into your assembly.

For a very simple example, see the attached video which shows a set of compression springs (the video is rather short, but if you turn on the repeat option in the media player it looks pretty good) being compressed/uncompressed.  In this example the springs are 'deformable' and as the components in the assembly move in the animation, measurement expressions are used to modify the lengths of the springs which causes them to compress/uncompress as seen in the video.

John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/

To an Engineer, the glass is twice as big as it needs to be.
 

RE: "Flex" in NX

... to cut it short:
we can do it in Nx but not as sexy...

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