Orientation of Coincidence constraints - What defines this .?

Michael Laursen

Orientation of Coincidence constraints - What defines this .?

Hey fellow COE members,

So, trying to do some EKL coincidence constraints. No problem doing so. But.. Orientation. What defines the orientation when constraining two parts(Plane/surfaces) together..? 

As far as i can test.. the parts are always oriented the same way no matter the "Orientation" of the planes used.. Only the parameter (Same/Opposite) changes. Yes.. if i change that the part flips over to the other side. 

Is the only way to make sure of this orientation to use the AxisSystem to make sure it's constrained with the correct orientation..? 

 I hope you get my question.. :-) 

/Michael - That Catia Guy

 

 

Cliff Johnson, Cliff

RE: Orientation of Coincidence constraints - What defines this .?
(in response to Michael Laursen)

When constraining two planes, the solution chosen by CATIA seems to be "solution closest to the current position"

I don't use constraints much, but a have used them in a few special purpose templates. In those cases I included extra hidden "constraint" part bodies in the part, with selected faces published. Then I used contact constraints. No ambiguity. 

 

How to ask questions 

Michael Laursen

RE: Orientation of Coincidence constraints - What defines this .?
(in response to Cliff Johnson, Cliff)

Thx Cliff,

I have never done it that way... Thx for the suggestion.

However, we have decided to use AxisSystems as much as posible. This will reduce the amount of constraints needed and avoid the redundant extra bodies for the contact constraints.

I did create a Service Request hoping that i could get a more precise explanation on how constraints work. :-) I will post here if i get an answer. :-)

Again thx for the replay and contribution to COE..

 

/Michael