BL3D-2M2 dual-material 3D/4D printer is the latest multi-material 3D printer developed by BRIC full 3D laboratory, with a resolution of 35 microns to ensure high precision of molding, and a double tray configuration to ensure that 2 materials can be printed from XY direction or Z direction at the same time.At present, the BL3D-2M2 dual-material 3D printer can print ordinary resin, flexible resin, magnetic material resin, ceramic paste, metal paste, functional gradient material, etc., plus the excitation of acousto-optic electromagnetic field, 4D printing can be realized, which is one of the best tools for scientific research.