A method and system for demultiplexing packets of a message is provided. In order to provide advantageous deburring conditions it is proposed that the annular support comprises at least two sets of planing tools which are radially adjustable to the metal strand cut to length, which sets are arranged behind one another in the longitudinal direction of the metal strand cut to length and which are staggered against each other set by set. If the main controller is idle or will be available within a second predetermined time, the sub-controller provides the first data to the main controller for rendering and the main controller renders the first printing data. ECA material can be deposited on either the wafer contacts or the substrate pads.