Am not sure how you post the files up here but I am looking at 2 parts, assembled as a product, all constrained within the component. I have then fixed the one part with clamp, applied a contact connection property to the relative constraint, but only one, this is allowing the part to move on the base, however I have been unable tofind any connections which can be used with the offset constraints. I am sure that there is something very obvious I am missing but have gone through the help files top to bottom trying to ensure the parts are assembled properly. Is it as simple as the package is unable to deal with just a welded assy, the weld features seem not to restrain the parts at all?