Fig. 1: Hybrid AM platform.

A printhead for mixing and extruding two materials (A, B); and an atmospheric plasma jet (A, C) were developed and mounted on a commercial printer platform (A). B Schematic of the printhead, capable of varying the extruded material composition during the printing, by varying the ratio of the two feed materials using gas pressure applied to each material. C Schematic of the plasma jet used to activate surfaces with an inert gas (Ar tested here) plasma, as well as of depositing films of plasma-polymerized precursors (up to two precursors, fed to the plasma using carrier gas bubbling in the precursors and controlling precursor amount using gas mass flow meters).