A team of researchers from the Massachusetts Institute of Technology (MIT) have developed a 3D printer that is capable of printing a fully functional linear motor in just a few hours. According to the paper published on Virtual and Physical Prototyping, the device is equipped with four different extruders — a filament extruder, a pellet extruder, an ink extruder, and a heater — and outputted five different materials — dielectric, electrically conductive, soft magnetic, hard magnetic, and flexible. The team aimed to build a multi-model, multi-material extrusion 3D printer that can build an electric motor with as few steps as possible.
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