ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,138, issued on May 20.
"High speed FDM 3D printer with closed loop motion system" was invented by Jacob J. Consalvi (Vienna, Va.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention and its variations provide a method of Fused Deposition Modeling (FDM) 3D Printing at a high rate of speed, much higher than that of a conventional 3d printer (e.g. 5 meters per second travel, depositing 3 cubic centimeters of material per second). The invention uses a closed loop brushless motor control system to rapidly move a carriage to a precise position. This carriage contains on itself a high-flow-rate hot end, which is a device which can liquify m...