Abstract: A printing head module including a body, a feeding roller assembly and a feeding sensor is provided. The body includes a material-supplying channel and a nozzle connected to the material-supplying channel. The feeding roller assembly is disposed at the material-supplying channel to transmit the modeling material to the nozzle. The feeding sensor is disposed at the feeding roller assembly to detect whether the feeding roller assembly rotates. The feeding sensor is coupled to a control unit, such that the control unit generates a notice according to a detection result of the feeding sensor.

Abstract: A three-dimensional printing apparatus including a tank, a moving platform, a light source disposed below the tank, a detecting unit and a control unit is provided. The tank is filled with a liquid forming material and a separating liquid, wherein the specific density of the separating liquid is larger than the specific density of the liquid forming material, so that the separating liquid sinks between the tank and the liquid forming material. The control unit controls an initial depth at which the moving platform immerses into the liquid forming material, so as to form a three-dimensional object. A three-dimensional printing apparatus is also provided, wherein the light source thereof is disposed above the tank, and the specific density of the liquid forming material is larger than the specific density of the separating liquid, so that the liquid forming material sinks between the tank and the separating liquid.

Abstract: A three-dimensional (3-D) printing apparatus includes a base, a printing head module and a control unit. The base includes a carrying surface and a guiding mechanism. The guiding mechanism extends along a long-axis direction of the base. The printing head module movably disposed on the guiding mechanism. The length of the base is greater than the length of the printing head module, such that the printing head module is suitable for moving relatively to the guiding mechanism. The control unit coupled to the base and the printing head module controls the printing head module to move relatively to the base according to extensional information of the digital 3-D model along the long-axis direction, such that the printing head module dispenses a material on the carrying surface to form a 3-D object when moving relatively to the base.

Abstract: A cleaning device for removing a residue adhered to a discharging nozzle of a three-dimensional printing apparatus is provided. The cleaning device includes a plate and at least one flexible cleaning member disposed on the plate. The flexible cleaning member has a notch corresponding to an outer profile of the discharging nozzle.

Abstract: A three-dimensional printing apparatus including a chassis, a tank, an outer cover and a shielding module is provided. The tank is disposed at the chassis and adapted to be filled with a liquid forming material. The outer cover is pivoted on the chassis. The shielding module includes a pivot and a mask. The pivot is disposed on the chassis and beside the tank. The mask is winding on the pivot and connected with the outer cover. When the outer cover rotates to a first position and covers the tank, the mask is winding on the pivot. When the outer cover rotates to a second and exposes the tank, the outer cover pulls the mask out of the pivot, so that the mask covers the tank in order to shield the liquid forming material filled in the tank.

Abstract: A printing system and a data transmission method thereof are provided. The printing system includes a peripheral unit and a controller. The peripheral unit is configured to execute a data printing function and includes a digital data. The controller is coupled to the peripheral unit. The controller converts a digital control command to obtain an analog control signal, and transmits the analog control signal to the peripheral unit. The peripheral unit converts the analog control signal into the digital control command when the analog control signal is received by the peripheral unit. The peripheral unit converts a corresponding digital data into an analog signal according to the digital control command to transmit the analog signal to the controller.

Abstract: A printing system and a data transmission method thereof are provided. The printing system includes a peripheral unit and a controller. The peripheral unit is configured to execute a data printing function and includes a digital data. The controller is coupled to the peripheral unit. The controller converts a digital control command to obtain an analog control signal, and transmits the analog control signal to the peripheral unit. The peripheral unit converts the analog control signal into the digital control command when the analog control signal is received by the peripheral unit. The peripheral unit converts a corresponding digital data into an analog signal according to the digital control command to transmit the analog signal to the controller.

Abstract: A three-dimensional printing method for forming a three-dimensional object on a base is provided. The method comprises providing a model library comprising at least one supporting member, selecting the at least one supporting member from the model library and disposing the at least one supporting member onto the base. The three-dimensional object is printed over the base and the at the least supporting member, and the three-dimensional object has an overhanging portion relative to the base and the at least one supporting member is filled between the overhanging portion and the base.

Abstract: A 3-D printing apparatus of the invention includes a process unit, a 3-D display unit, a base and a printing head. The processing unit is configured to read and process a digital 3-D model information. The base has a carrying surface. The 3-D display unit is coupled to and controlled by the processing unit and configured to display a digital 3-D image related to the digital 3-D model on the carrying surface for previewing, wherein the 3-D image is corresponding to a 3-D object related to the digital 3-D model. The printing head is disposed above the base and coupled to the processing unit, wherein the processing unit controls the printing head to dispense a base material formed on the carrying surface layer by layer so as to form the 3-D object according to the digital 3-D model information and following an image contour of the 3-D image.

Abstract: A printing head module and a three dimensional (3-D) printing apparatus using the same are provided. The 3-D printing apparatus includes a base and the printing head module. The printing head module is disposed above the base and includes a printing head and at least one material spool. The printing head includes a plurality of assembling pieces assembled with each other to form the printing head and define a nozzle of the printing head. Each of the assembling pieces includes at least one material-supply groove. The material-supply grooves of any two adjacent assembling pieces are located corresponding to each other to form at least one material-supply channel together. Each material spool is connected to the material-supply channel for providing at least one fluid material to the material-supply channel. The fluid material is transmitted via the material-supply channel to be dispensed on the base.

Abstract: A three-dimensional (3-D) printing apparatus includes a processing unit, a base, and a printing head. The processing unit is configured to read and process a first digital 3-D model and is adapted to receive an adjustment signal to adjust the first digital 3-D model to a second digital 3-D model according to the adjustment signal. The printing head is coupled to and controlled by the processing unit. If the second digital 3-D model is confirmed, the processing unit saves the second digital 3-D model and controls the printing head to dispense a construction material in a layer-by-layer manner on the base to form a 3-D object associated with the second digital 3-D model.

Abstract: A three-dimensional printing apparatus is provided. The three-dimensional printing apparatus includes a base, a printing head, a plurality of material-supplying spools and a switching unit. The base has a carrying surface. The printing head is disposed above the base. The material-supplying spools respectively include a plurality of construction materials. The construction materials have a plurality of characteristics, and the characteristics are different from each other. The switching unit is configured to selectively connect at least one of the spools to the printing head according to the characteristics. The construction materials of the selected material-supplying spools are dispensed on the carrying surface by the printing head.

Abstract: A three-dimensional (3D) scanner including a light-source module, a screen, a rotary platform, an image capturing unit and a process unit is provided. The light source module is configured to emit a beam. The screen disposed on a transmission path of the beam has a projection surface facing the light source module. The rotary platform carrying a 3D object is disposed between the light source module and the screen. The 3D object is rotated to a plurality of object orientations about a rotating axis to form a plurality of object shadows on the projection surface. The image capturing unit is configured to capture the object shadows from the projection surface to obtain a plurality of object contour images. The process unit is configured to read and process the object contour images to build the digital 3D model related to the 3D object according to the object contour images.

Abstract: A three-dimensional (3-D) printer and a method for adjusting a working coordinate of a platform thereof are provided. The 3-D printer includes a platform, a printing head and a control unit. The platform includes a carrying surface and adjustment points located on the carrying surface. The printing head disposed above the platform for moving along a datum plane and a normal direction of the datum plane. The control unit controls the printing head to move from the datum plane toward the platform to contact each of the adjustment points for obtaining a coordinate offset of the carrying surface corresponding to the datum plane, and adjusts a model coordinate of a digital 3-D model information according to the coordinate offset. The control unit moves the printing head according to the adjusted model coordinate to print a 3-D object related to the digital 3-D model information on the carrying surface.

Abstract: A three-dimensional printing apparatus including a tank filled with a liquid-state forming material, a platform disposed at the tank, a rotating shaft, a rotating arm, and at least one light source is provided. The rotating shaft is disposed under the tank or above the tank. The rotating arm connects to the rotating shaft such that the rotating arm is driven by the rotating shaft to rotate. The light source disposed on the rotating arm rotates along with the rotating arm and generates light projecting toward the forming material along with the part of the platform moving in the forming material, such that the forming material is solidified in layers and forms a three-dimensional object on the platform.