"The novel 3D printing platform was capable of printing an electric linear motor, a simple type of electric motor that is widely used in CNC machining and other industrial robots, by using just five different materials in only three hours. The total cost of materials: just 50 cents."
"This study demonstrates the capability of multi-modal, multi-material extrusion 3D printing to fabricate all critical components of electrical machines, with magnetization of the hard magnets being the only post-printing step."
"The team came up with a retrofitted 3D printer, which features four separate extruders that can deposit a wide variety of printable materials, including magnetic and conductive ones, by squeezing them through a nozzle."
MIT researchers have created an advanced 3D printing technology that can manufacture entire complex machines with moving parts in just hours. The system uses a retrofitted printer with four separate extruders capable of depositing various printable materials, including magnetic and conductive ones. The team successfully printed an electric linear motor—a device commonly used in industrial robots and CNC machining—using only five different materials in three hours at a material cost of just 50 cents. The printed motor incorporated solenoids, hard magnets, and springs, with magnetization being the only post-printing step required. This breakthrough demonstrates multi-material extrusion 3D printing's capability to fabricate all critical components of electrical machines, representing significant advancement in additive manufacturing technology.
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