hi,

The publication is here to "help" you manage the links :

In a CATPart A, you publish a plane.1 as "RefPlane"

In a CATProduct you put your CATPart A and a new CATPart B

You create in CATPart B an offset plane from "RefPlane" (from catpart A)... you then have a link to CATPart A (in fact to a publish element "RefPlane", check parent/children)

Create a new CATPart C alone, create a plane and publish it as "RefPlane" (same name), save the CATPart.

In your CATProduct replace CATPart A with CATPart C.

Then the offset plane in CATPart B is updated according to the new "RefPlane", if you do this without Publication your link is not change to the new CATPart C, and then it's no good.

In Assembly, let say you have a CATPart with a Hole, and another CATPart with an screw. If the axis of the screw is published and a constrainte exists for the 2 axis to be coincidence, then you can replace the screw with another one, the new one will take the old one place, as long as both have a publication of their axis with the same name.

Clear ?

Have fun

Eric N.

catiav5@softhome.net

Thanks Thanks a lot. The answer of using publication had to do with "Replacement". OK I got it clear and thanks again.

beenson