How to view conflicting constraints within a sketch 1

[Buckshott00]

Hello,

I am pretty sure that this is on here somewhere, but I cannot find the solution. If you are checking a sketch and it is over-constrained or has conflicting constraints how do you check to see which constraints or dimensions are in conflict?

Thank you

 

[Buckshott00]

For got to mention NX 7.5.4.4 Windows 7 64Bit

 

[ChaseWichert]

That's a good question, I use trial and error. Delete a constraint if it get's rid of the over constrain I can generally figure it out, if it doesn't I undo and delete another one... I know this doesn't help, but if there was a way I would like to know. I almost think that it might be really difficult, because if you have 2 constraints conflicting that should be conflicting with all of the other over constrained objects. Therefore it wouldn't help, but I haven't tried to think the logic through...

 

[Buckshott00]

I am pretty sure there is an actual feature to view which constraints are in conflict. I am pretty sure it was a menu similar to the ones where you can view the explicit and implicit constraints. Except it would only show or highlight ones that were in conflict

 

[jnikolauk]

Things will usually highlight when they conflict/are overconstrained but due to the interconnectivity of constraints. it can be difficult to weed out just what is conflicted

 

[CAD2015]

Over-constrained would always go red. So, it is very easy to identify them!

 

[JohnRBaker]

While it's true that when a sketch becomes over-constrained the problematic objects turn RED, however it's often the case that more objects are highlighted than what was really causing the conflict condition, as seen in this example from NX 7.5:

I mean looking at this where's the problem? Is it one or more of the 5 curves or the 2 dimensions? Or maybe those Horizontal/Vertical constraints?

Now look at this same sketch with the same conflicts, only this is what you're going to see in the next version of NX:

Now it's pretty obvious that the problem was with the Dimensions and nothing else.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

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http://www.plmworld.org/p/cm/ld/fid=209

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

 

[cubalibre000]

Hi John,
with only one image it's difficult understand if the next release of NX is proposing one possible solution to resolve the conflict or the only one solution.
For what I can understand, equal constraints and double dimension are added manually, so there are two solution; or remove one dimension or remove one equal constraints.
If we want to analyze better, there are other six solutions, removing some inferred constraints.

Thank you...

Using NX 8 and TC8.3

 

[Buckshott00]

I see, I must have been mistaken I thought there was a menu similar to the show/list constraints dialog that listed the constraints and had the conflicting ones highlighted in red or yellow based on if they were over constrained or conflicting.

Thanks everyone