• Multimaterial 3D printer builds fully functional electric motor from scratch in hours MIT researchers printed a working electric motor in hours using a multimaterial 3D-printing platform. • MIT researchers have built a 3D-printing platform that can fabricate fully functional electric machines in a single process, potentially allowing factories to produce replacement motors on-site within hours. • The system uses multimaterial extrusion to print complex devices made of conductive, magnetic, and structural materials without the need for specialized manufacturing facilities. • In a demonstration, the team printed a working electric linear motor in about three hours. • Electric machines are typically manufactured in centralized facilities using multiple fabrication steps and specialized equipment. • When a motor fails on a factory floor, replacing it often requires ordering parts from far away, leading to downtime and added costs.
Article Summaries:
- MIT researchers have demonstrated a multimaterial 3D‑printing platform that can fabricate a fully functional electric motor in a single build, completing a linear motor in about three hours. The printer uses four extruders-each handling conductive, magnetic, structural, or pressure‑driven feedstocks-along with integrated sensors and a control framework to maintain precise layer alignment. The printed motor cost roughly 50 ¢ and delivered several times the actuation of a conventional linear engine. The team views the prototype as proof of concept for on‑site, distributed manufacturing of electromechanical devices, aiming to integrate magnetization steps and produce rotary motors in future iterations.
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