I was assembling a system in Solidworks based on a 40x80mm C-Rail and ran into an issue where something is not lining up properly. When I mate my wheels so they are tangent to the V portion of the rail, then the mounting holes for the wheel assemblies are not concentric with the wheel hubs. In the attached picture, I show the distance between the mounting holes on the V-Slot gantry plate, and the distance between the centers of the corresponding locating features on the wheel assemblies. The distance is also such that even turning the eccentric adapter as far as it will go should not be able to correct for it. Am I doing something wrong here, or might there perhaps be a dimension error in the library parts? Thanks!