NX6 Assembly Constraint Limit/Range

[Mid7night]

In NX6: I'm trying to limit the motion of an over-center link in an assembly. It needs to be free to fold, but not past 180°. Is this possible with Assembly Constraints? Can you define an upper/lower bound for an expression? Thanks!

 

[JohnRBaker]

You could create a 'Measurement' expression of say the angle and then test the value so that it stays within the desired rnage.

John R. Baker, P.E.
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[Mid7night]

I tried that, but it's not dynamic when you move the assembly. I've worked out another solution, but I have a new question:

Is there a way to make an expression step through a range of values, say from 0 to 1, aside from manually doing it and recording your actions with a macro? Is there a slider/animation bar that I can hook to an expression? You can do it in Catia, so I'm really frustrated that I can't find it in UG.

 

[JohnRBaker]

Starting with NX 8.0 you will be able to create Attributes using a scheme like that (explicit values, upper/lower limits, etc.) and these can then be used to drive expressions.

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

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

 

[Mid7night]

Aww crap. Really? That's a bummer. Guess I'll have to go back to macros for now...