Abstract: A printing method for printing a multi-material 3D model comprises the following steps: perform a slicing process on a multi-material 3D object to generate the multi-material object slices and the object slices of a useful object; compute a material-switching point and a retrieving point during the slicing process; print the multi-material object slices of a multi-material 3D model with one of the materials; when print to the material-switching point, switch to another different material and print useful objects with the material used before the material switching; when print to the retrieving point, print the multi-material object slices with the material used after the material switching; and repeat the above steps until completing the multi-material 3D model printing. The present disclosed example prints the useful object via the remaining materials after the material switching which effectively reduces the cost with of multi-materials printing.

Abstract: A wire fusing apparatus including a first body having a first surface, a second body having a second surface, and a heating unit is provided. The second body is pivoted to the first body to rotate relatively to the first body enabling the first and second bodies to be in an expanded or a closed state. When the first and second bodies are in the closed state, the first and second surfaces define a closed containing groove for containing two independent wires butt jointed with each other. The first surface, the second surface and the containing groove each has a heat-conducting region, and the heat-conducting regions contact each other when the first and second bodies are in the closed state. The heating unit disposed on the first or second body contacts one of the heat-conducting regions for heat-fusing a butt-jointing point of the wires to form a fused wire.

Abstract: A method of slicing and printing colour 3D model is disclosed. The method includes following steps: loading a model data corresponding to a colour 3D model; adding a pollution-blocking structure next to the colour 3D model; executing a slicing process to the pollution-blocking structure and the colour 3D model for generating a plurality of pollution-blocking slices and a plurality of model slices and configuring colour each of the model slices; and, controlling a modeling nozzle (100) of a multi-colour 3D printer (1) to print the pollution-blocking slices and the model slices layer by layer and controlling a coloring nozzle (102) of the multi-colour 3D printer (1) to color each of the model slices.

Abstract: A printing head module for a 3-D printing apparatus includes a 3-D print head, an ink-jet print head and a baking module. The 3-D print head includes a melting module and a base-material nozzle to print a plurality of staking layers. The ink-jet print head is connected to the 3-D print head and includes an ink nozzle to dispense ink on each stacking layer. The baking module is disposed between the 3-D print head and the ink-jet print head and includes a fan, a discharge casing and a heating module. The fan includes an air-discharge side facing the base to provide an air flow. The discharge casing is disposed on the air-discharge side. The heating module is disposed between the fan and the discharge casing to heat the air flow and the heated air flow being blown out via the discharge casing for drying the ink layer.

Abstract: A nozzle cleaning module including a base housing, a main carrier, a sub-carrier, a driving assembly and an interference structure is provided. The main carrier is received in the base housing, a wiper protrudes upwardly from the main carrier, and the main carrier has a sub-slope. The sub-carrier is received in the main carrier, a cover protrudes upwardly from the sub-carrier, and at least a portion of the sub-carrier is in contact with the sub-slope. The driving assembly is connected to the main carrier and obliquely lifts the main carrier in relation to the base housing to lift the wiper. The sub-carrier moves along with the main carrier at the same time. The interference structure is arranged corresponding to the sub-carrier to move the sub-carrier along the sub-slope, so the cover can be raised.

Abstract: A 3D color printing mechanism includes a sliding track (100), a slider (200), a painting nozzle (300) and a modeling nozzle (400). The slider (200) is arranged on the sliding track (100) and capable of sliding between two ends of the sliding track (100). The painting nozzle (300) is arranged on the slider (200) and comprises at least one ink jet head (310). The modeling nozzle (400) is connected to the slider (200) and includes a material squeezer head (410). The material squeezer head (410) is arranged non-collinearly with the ink jet head (310) at a direction parallel to the sliding track (100).

Abstract: An alignment method adopted by a 3D printer having a 3D nozzle for jetting material and a 2D pen-module for jetting colored ink is disclosed. The 3D printer first controls the 3D nozzle to print an alignment template on a printing platform, wherein the alignment template comprises multiple alignment blocks respectively and separately printed along an axis, and each alignment block respectively deviates from each center-line according to an accumulated offset. Next, the 3D printer controls the 2D pen-module to print an ink matrix on the alignment template, wherein the ink matrix comprises multiple ink blocks respectively and separately printed along the same axis, and each ink block is exactly corresponding to each center-line respectively. The 3D printer uses covering status of each alignment block and each ink block to determine a deviation between the 3D nozzle and the 2D pen-module, so as to perform an alignment action thereupon.

Abstract: A three dimensional printing apparatus and a printing head module are provided. The three dimensional printing apparatus includes a base, a printing head module and a controller. The base has a carrying surface. The printing head module includes a printing head, a fan and a nozzle guiding cover. The printing head includes a heating element, a feeding channel and a nozzle. The feeding channel connects the nozzle. The nozzle guiding cover is disposed correspondingly to the fan and extended to the nozzle. The nozzle guiding cover includes a nozzle outlet located between the nozzle and the carrying surface. The controller is coupled to the printing head module to control a hot-melt material transmitting to the nozzle, and the heating element is configured to heat the nozzle so the hot-melt material is melted and dispensed on the carrying surface to form a three dimensional object.

Abstract: A three-dimensional printer includes: a machine mainframe, formed with a carrying plane; a three-dimensional printing module, installed on the machine mainframe, and used for forming a three-dimensional object on the carrying plane according to a three-dimensional model data; and a color spraying nozzle module, installed on the machine mainframe and used for coloring a surface of the three-dimensional object according to the three-dimensional model data, wherein the color spraying nozzle module includes at least one color spraying nozzle and at least one screen member, the color spraying nozzle is formed with at least one nozzle hole, the screen member is formed with at least one screen hole, the screen hole is arranged corresponding to the nozzle hole, and the area of the screen hole is smaller than the area of the nozzle hole thereby enabling the color spraying nozzle module to more efficiently color the three-dimensional object.

Abstract: A printing method for printing a multi-material 3D model comprises the following steps: perform a slicing process on a multi-material 3D object to generate the multi-material object slices and the object slices of a useful object; compute a material-switching point and a retrieving point during the slicing process; print the multi-material object slices of a multi-material 3D model with one of the materials; when print to the material-switching point, switch to another different material and print useful objects with the material used before the material switching; when print to the retrieving point, print the multi-material object slices with the material used after the material switching; and repeat the above steps until completing the multi-material 3D model printing. The present disclosed example prints the useful object via the remaining materials after the material switching which effectively reduces the cost with of multi-materials printing.

Abstract: A three-dimensional printing head includes a housing (100), a fusing module (200) arranged in the housing (100), and a heat dissipation module (300). The fusing module (200) is disposed in the housing (100) and includes a feeding tube (210) with both ends open. A feeding inlet (211) for receiving a filament material (20) is at one end of the feeding tube (210), a supplying nozzle (220) is at the other end of the feeding tube (210), and multiple fins (212) are formed outside of the feeding tube (210). A heater (230) is disposed at the supplying nozzle (220) to heat the same for melting the filament material (20). The heat dissipation module (300) includes a fan (310) arranged in the housing (100), and the fan (310) has an inlet side (311) and an outlet side (312) opposite thereto. The outlet side (312) is arranged toward the fusing module (200).

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 (3D) printing apparatus, a printing calibration board and a three dimensional printing calibration method thereof are provided. The three-dimensional printing apparatus is adapted to spray the printing material. The three-dimensional printing apparatus includes a nozzle module, a printing platform and a control unit. The printing platform has a carrying surface, where the calibration pattern is disposed on the carrying surface. The calibration pattern at least includes a datum path and a first auxiliary path. The control unit controls the nozzle module coupled to the control unit to spray the printing material along the datum path, and the printing speed of the nozzle module is adjusted in response to the width of coverage of the printing material on the calibration pattern.

Abstract: A 3D printer includes a machine body, a printing platform, a scanning and driving module, and a scanning and supporting module. The machine body has a bottom plate. The printing platform and the scanning and driving module are disposed on the bottom plate. The printing platform includes a slide track and a movable printing substrate. The scanning and driving module and the slide track are staggeredly disposed such that the scanning and driving module and the slide track do not interfere with the movement of the printing substrate. The scanning and supporting module is detachably combined with the scanning and driving module and is driven by the scanning and driving module.

Abstract: A detachable scanning and supporting module of a 3D printer includes a machine body, a printing platform, a scanning and driving module, and a scanning and supporting module. The machine body has a bottom plate. The printing platform and the scanning and driving module are disposed on the bottom plate. The printing platform includes a slide track and a movable printing substrate. The scanning and driving module and the slide track are staggeredly disposed such that the scanning and driving module and the slide track do not interfere with the movement of the printing substrate. The scanning and supporting module is detachably combined with the scanning and driving module and is driven by the scanning and driving module.

Abstract: A filament-fusing apparatus includes a first body, a first-heating element, a second body and a second-heating element. The first body includes a first surface and a first-filament groove disposed thereon. The first-heating element disposed on the first surface has a first-connecting groove and a first-overflow groove. Two opposite sides of the first-connecting groove connect the first-filament groove. An axial side of the first-connecting groove connects the first-overflow groove. The second body includes a second surface and a second-filament groove disposed thereon. The second-heating element disposed on the second surface has a second-connecting groove and a second-overflow groove. Two opposite sides of the second-connecting groove connect the second-filament groove. An axial side of the second-connecting groove connects the second-overflow groove.

Abstract: In an aligning mechanism of a 3D printer scanning device, a scan driving module includes a base and a motor, and the motor has a driving gear. The scan loading module includes a loading table, a turntable, and an engaging gear connected to the turntable, and the loading table has a notch, and the engaging gear is exposed from the notch. The driving gear of the scan driving module and the engaging gear of the scan loading module have a rounded corner or a positioning portion, so that the driving gear is engaged precisely with the engaging gear.

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.