The present disclosure provides a system for printing at least a portion of a three-dimensional (3D) object. The system may comprise a source of at least one feedstock, a support for supporting at least a portion of the 3D object, a feeder for directing at least one feedstock from the source towards the support, and a power supply for supplying electrical current. The system may comprise a controller operatively coupled to the power supply. The controller may receive a computational representation of the 3D object. The controller may direct the at least one feedstock through a feeder towards the support and may direct electrical current through the at least one feedstock and into the support. The controller may subject such feedstock to Joule heating such that at least a portion of such feedstock may deposit adjacent to the support, thereby printing the 3D object in accordance with the computational representation.

A manufacturing device (1), and a method for manufacturing saw blades (2) and for welding or soldering individually fed cutting elements (4) on a fed, toothed base blade (3) uses an electrical pressure welding device (6) having an advance able welding head (14). The relative position of the base blade (3) and the welding head (14) in the process area is detected by an automatic adjusting device (9) and, if necessary, adjusted or readjusted.