The present invention relates to a system consisting of a connection node and at least one first connection body, wherein: the connection node comprises a connection node central body, a first connection element for joining with the connection body, and at least one second connection element for joining with a second connection body; the first connection element and the second connection element are connected or may be connected to the connection node central body; and at least one portion of the connection node central body and/or of the first connection element and/or of the second connection element is manufactured by means of an additive process, for example 3D printing, or by means of a casting process.