Abstract: A method determines overlap regions by identifying a face on a first component part of an assembly that is less than a specified gap distance from a face on a second component part of the assembly. The method is also for determining if a minimum width of each of one or more the overlap regions exceeds a specified maximum value, and if the minimum width of an overlap region does not exceed the specified maximum value, determining a guide curve along a centerline of the overlap region. If the minimum width of an overlap region exceeds the specified maximum value, the method is further for determining two or more guide curves along an offset of two or more edges of the overlap region. The method also is for determining one or more joint locations along the guide curve or curves based upon one or more parameters.