▎ 摘　　要

NOVELTY - The method involves mixing magnetic nano graphene with a printing photo-curing resin. An external parameter of a flexible circuit board needed to-be-printed is obtained. A printed flexible circuit board three-dimensional (3D) model is established through an obtained numerical value. A prepared 3D printing photo-curing resin containing magnetic nano graphene is added to a storage chamber. The 3D model is introduced into a slice software for slicing processing. A blade is utilized to remove a printed model from a fixed base. An outer part of the flexible circuit board is polished. USE - Method for realizing fine electromagnetic field precise locating conductive material 3D printing process. Uses included but are not limited to jewelry, footwear, industrial design, construction, engineering and construction (AEC), automobile, aerospace, dentistry and medical industry, education, geographic information system, civil engineering and firearms. ADVANTAGE - The method enables increasing the fine electromagnetic field so as to realize the secondary arrangement of the magnetic nano graphene in the resin under the action of the electromagnetic field and form a conductive path, thus increasing the efficiency of the 3D printing flexible circuit board and the accuracy of printing, and hence avoiding damage of the circuit board of the printing in the process of discharging.