Deformable spring

[Myki01]

Hi,

I have made a deformable spring with a helix curve. I have tried to do the same features and expressions except the trim bodies like in this thread:

http://www.eng-tips.com/viewthread.cfm?qid=297924

After I have created the deformable feature, it won’t work in the assembly , I don’t understand why?
It changed the length but with the same pitch….I can not find what did I make wrong.
It’s getting a little bit nerves…

I'm using NX 9.0...

http://files.engineering.com/getfil...1-9027-454b-9104-ad3cc0f47f95&file=Spring.prt

 

[JohnRBaker]

You had 'Height/nr_of_turns' formula assigned to the wrong expression. It should have been assigned to 'p3' instead of 'p13'. In the attached model, I've fixed it up for you.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

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

 

[Myki01]

Many Thanks!!!