An apparatus and method for printing an object via additive manufacturing is disclosed. In accordance with an illustrative embodiment, one or more inks are prepared, including a thermo-polymer ink, a nano-filler ink, and a thermo-polymer/nano-filler ink. In some embodiments, an object is printed by depositing alternating layers of thermo-polymer ink and nano-filler ink and exposing the layers to microwave radiation. In some other embodiments, an object is printed by depositing alternating layers of thermo-polymer/nano-filler ink and nano-filler ink and exposing the layers to microwave radiation. In some additional embodiments, an object is printed by depositing successive layers of thermo-polymer/nano-filler ink and exposing them to microwave radiation.