Abstract: A printing head module includes a driving gear, a bi-directional motor, a first feeding module and a second feeding module. The bi-directional motor selectively drives the driving gear to rotate along a first direction and a second direction. The first feeding module disposed at a first side of the driving gear includes a first unidirectional gear and a first idler gear. The driving gear is engaged with the first unidirectional gear, and the first unidirectional gear unidirectionally drives the first idler gear to rotate. The second feeding module is disposed at a second side of the driving gear opposite to the first side, and includes a second unidirectional gear and a second idler gear, the driving gear is engaged with the second unidirectional gear to drive the second unidirectional gear to rotate, and the second unidirectional gear unidirectionally drive the second idler gear to rotate.

Abstract: A material level detecting mechanism of three-dimensional system includes a bracket, a printing head, first piston, a second piston, a first detecting unit and a second detecting unit. The bracket includes an aligner holder and a supporter. The printing head detachably located in the aligner holder, and including a nozzle with an outlet for extruding the modeling material. The first piston includes a piston rod attached to a piston head, and the second piston slidably located inside the cartridge is adapted to be pushed by the first piston toward the direction of the outlet. The first detecting unit is adapted to detect the home position of the first piston and the second detecting unit is adapted to detect the touching of the first piston and the second piston which provide the initial amount of material present in the cartridge which is subject to print.

Abstract: A material level detecting mechanism of three-dimensional system includes a bracket, a printing head, first piston, a second piston, a first detecting unit and a second detecting unit. The bracket includes an aligner holder and a supporter. The printing head detachably located in the aligner holder, and including a nozzle with an outlet for extruding the modeling material. The first piston includes a piston rod attached to a piston head, and the second piston slidably located inside the cartridge is adapted to be pushed by the first piston toward the direction of the outlet. The first detecting unit is adapted to detect the home position of the first piston and the second detecting unit is adapted to detect the touching of the first piston and the second piston which provide the initial amount of material present in the cartridge which is subject to print.

Abstract: A printing head module includes a bracket, a plurality of printing heads, a pivot shaft, a wiper unit, and a control unit. The bracket includes a plurality of through holes. The printing heads are parallelly aligned with each other, each of the printing heads a nozzle for extruding the modeling material. The pivot shaft connected to the bracket is adapted to rotate the printing heads to a target position. The wiper unit includes a holder, a plurality of wipers, and a wiper opener. The holder is connected to the pivot shaft to be rotated with the bracket and the printing heads. The wipers rotatably connected to the holder and disposed correspondingly to the openings. The wiper opener is disposed at the target position to interfere with the wiper rotated to the target position, so as to drive the corresponding wiper to rotate to the opening position.

Abstract: A printing head module includes a bracket, a plurality of printing heads, a pivot shaft, a wiper unit, and a control unit. The bracket includes a plurality of through holes. The printing heads are parallely aligned with each other, each of the printing heads a nozzle for extruding the modeling material. The pivot shaft connected to the bracket is adapted to rotate the printing heads to a target position. The wiper unit includes a holder, a plurality of wipers, and a wiper opener. The holder is connected to the pivot shaft to be rotated with the bracket and the printing heads. The wipers rotatably connected to the holder and disposed correspondingly to the openings. The wiper opener is disposed at the target position to interfere with the wiper rotated to the target position, so as to drive the corresponding wiper to rotate to the opening position.

Abstract: A printing head module includes a driving gear, a bi-directional motor, a first feeding module and a second feeding module. The bi-directional motor selectively drives the driving gear to rotate along a first direction and a second direction. The first feeding module disposed at a first side of the driving gear includes a first unidirectional gear and a first idler gear. The driving gear is engaged with the first unidirectional gear, and the first unidirectional gear unidirectionally drives the first idler gear to rotate. The second feeding module is disposed at a second side of the driving gear opposite to the first side, and includes a second unidirectional gear and a second idler gear, the driving gear is engaged with the second unidirectional gear to drive the second unidirectional gear to rotate, and the second unidirectional gear unidirectionally drive the second idler gear to rotate.

Abstract: The printing head module includes a bracket, a plurality of cartridges, a first piston, a pivot shaft, and a control unit. The bracket includes a plurality of through holes. The cartridges coaxially aligned with each other, each of the cartridges includes a leaning portion and contains the modeling material and a nozzle for extruding the modeling material. The leaning portion is leaning against the bracket when the cartridge is located at the printing position. The first piston is configured to slide along an extensional axis of the cartridge and drive the cartridge to move toward the printing position. The pivot shaft is connected to the bracket and adapted to rotate the cartridge to a working location. The control unit is coupled to the pivot shaft and the first piston for controlling the first piston and the rotation of the bracket.