Abstract: A foldable 3D printer includes: a main body having an upper surface parallel to the ground; a stage coupled to the upper surface of the main body and adapted to stack a molding material thereon; a nozzle unit spraying the molding material onto the stage; and a bridge assembly adapted to mount the nozzle unit thereon, the bridge assembly being rotatably coupled to the main body to be positioned parallel to the main body when not in use and to be positioned perpendicular to the main body when in use.

Abstract: An assembly-type axial drive module includes: a first motor having a gear protruding from a rear side thereof; a first board coupled to the rear side of the first motor; a second board coupled to a rear side of the first board; a third board coupled to a rear side of the second board; a fourth board coupled to a rear side of the third board; a fifth board coupled to a rear side of the fourth board; a sixth board coupled to a rear side of the fifth board; a seventh board coupled to a rear side of the sixth board to provide weight balancing; and a second motor coupled to a rear side of the seventh board and connected to a filament storage unit storing filaments to move the filaments.

Abstract: An assembly-type axial drive module includes: a first motor having a gear protruding from a rear side thereof; a first board coupled to the rear side of the first motor; a second board coupled to a rear side of the first board; a third board coupled to a rear side of the second board; a fourth board coupled to a rear side of the third board; a fifth board coupled to a rear side of the fourth board; a sixth board coupled to a rear side of the fifth board; a seventh board coupled to a rear side of the sixth board to provide weight balancing; and a second motor coupled to a rear side of the seventh board and connected to a filamen t storage unit storing filaments to move the filaments.

Abstract: A foldable 3D printer includes: a main body having an upper surface parallel to the ground; a stage coupled to the upper surface of the main body and adapted to stack a molding material thereon; a nozzle unit spraying the molding material onto the stage; and a bridge assembly adapted to mount the nozzle unit thereon, the bridge assembly being rotatably coupled to the main body to be positioned parallel to the main body when not in use and to be positioned perpendicular to the main body when in use.