PROBLEMS OF ACCURACY OF BASE OF PIPE CONNECTIONS
Standards is not discussed the connection of the pin with the item, but it is in pinning that redundancy occurs, and as a result problems during assembly and operation of products appear. One of the foundations of a new methodology are geometric models of real components and connections. The article presents solving of the problem of precision of connections using geometric models, informativeness of coordinate systems are discovered. Geometric models disclosesystem interconnection between elements and their primary errors.