3d bioprinter

A three-dimensional (3D) bioprinter comprising:

• a case;
• a printing chamber provided in the case, surrounded by wall surfaces so that an interior thereof is isolatable from the outside, and provided with a chamber door;
• a moving unit including a horizontal moving unit installed in a space under a bottom surface of the printing chamber and a vertical moving unit installed outside a side surface of the printing chamber;
• a bed supported by the horizontal moving unit to be disposed above a bottom surface opening and installed to be movable in X-axis and Y-axis directions, wherein the bottom surface opening is formed in the bottom surface of the printing chamber;
• a first bellows which covers a space between the bed and an inner circumferential surface of the bottom surface opening to isolate the interior of the printing chamber from the space under the bottom surface of the printing chamber and is deformed according to movement of the bed to allow the bed to be moved in the X-axis and Y-axis directions;
• a first print module provided in the printing chamber and installed to be vertically movable by the vertical moving unit in a Z-axis direction;
• a second print module provided at one side of the first print module in the printing chamber and installed to be vertically movable by the vertical moving unit in the Z-axis direction;
• and
• a controller configured to control operation of the moving unit, operation of the first print module, and operation of the second print module.