Abstract: A stereolithography 3D printer (10) includes: a transporting mechanism (1) having a translucent conveyor belt (11) with its top divided into a discharge area (13) and a receiving area (14); a discharging mechanism (2) installed in the discharge area (13) and including a first material box (21) and a discharge nozzle (22) corresponsive to the first material box (21), and the first material box (21) having a discharge port (211); and a recycling mechanism (3) installed in the receiving area (14) and including a second material box (31) and a receiving sucker tip (32), and the first material box (21) and second material box (31) being disposed adjacent or attached to the translucent conveyor belt (11), and the receiving sucker tip (32) being corresponsive to the second material box (31), and the second material box (31) having a receiving port (311).

Abstract: A photocuring type 3D printer (4) includes a sink (41) for containing a forming liquid (40), a glass layer (42) disposed on the sink (41), a membrane (43) disposed above the glass layer (42), an emitting unit (46) disposed below the sink (41), and a forming platform (45) arranged to immerse in the forming liquid (40) for constructing a model (5). The 3D printer (4) further includes an adjusting unit (44) disposed at one side of the sink (41). One end of the membrane (43) is connected to the adjusting unit (44), and another end of the membrane (43) is connected to the other side of the sink (41) opposite to the adjusting unit (44). The 3D printer (4) controls the adjusting unit (44) to execute homing for tightening the membrane (43) before solidifying the model (5) and controls the adjusting unit (44) to move for relaxing the membrane (43) after the model (5) is solidified, and controls the forming platform (45) to move after the membrane (43) is relaxed for peeling the model (5) from the membrane (43).

Abstract: A printing module and a three-dimensional printing apparatus using the same are provided. The three-dimensional apparatus includes a rack with a printing region and a standby region and a control module. The printing module includes a carriage assembly disposed at the rack and is electrically connected to the control module, a first supporting stand disposed at the carriage assembly to be driven thereby, at least one second supporting stand disposed at the standby region, at least one printing head assembly electrically connected to the control module and having a first buckling portion, and a quick release driving assembly disposed at the first supporting stand and electrically connected to the control module. The control module drives the quick release driving assembly to pick and place the printing head assembly between the first supporting stand and the second supporting stand.

Abstract: A 3D printing method implemented by swaths is disclosed. When printing swaths of a printing layer, a 3D printer first obtains a default swath-width, and adjusts the default swath-width based on a shift value, then controls a nozzle to print the swaths according to the adjusted swath-width. When printing a final swath of the same printing layer, the 3D printer compensates a remained swath-width of the final swath according to the adjusted shift value(s) of previous printed swath(s), and controls the nozzle to print the final swath according to the compensated remained swath-width. When printing different printing layers, the 3D printer uses different shift values to adjust the swath-width of each printing layer. Because swaths of different printing layers have different widths, the positions of seams between each two swaths of each printing layer are staggered, and thus the strength of printed 3D models is enhanced.

Abstract: A 3D printing apparatus including a 3D printing device, a VR display device, and a processing device is provided. The VR display device displays a VR image. The VR display device includes an input device. The input device receives an input signal and the input signal in response to selecting a virtual object in the VR image. The processing device obtains a generic model data corresponding to the virtual object based on the input signal. The processing device executes an edit module to edit a 3D model corresponding to the virtual object based on the generic model data. When the processing device outputs a plurality of layered data corresponding to the 3D model to the 3D printing device, the 3D printing device prints a 3D object corresponding to the 3D model based on the plurality of layered data. Moreover, a 3D printing method is also provided.

Abstract: A three dimensional (3D) printing method and a 3D printing apparatus are provided. The 3D printing method includes: performing a voxelization operation on a space including a 3D model to obtain a plurality of voxels corresponding to the space; selecting a first voxel of the voxels including a first supporting point of supporting points; determining a first merge point of a plurality of merge points according to the first voxel, wherein the first merge point is located at a second voxel of the voxels; printing a first supporting member of supporting members according to the first supporting point and the first merge point.

Abstract: A 3D modeling method based on point cloud data for generating 3D object data corresponding to target object (50, 51) includes activating a 3D scanner (2) to obtain 2D images of the target object (50, 51) from different angles and a plurality of depths of the target object (50, 51); generating a plurality of point cloud data (60-64) based on the 2D images and the depths; performing a pre-modeling process on the plural point cloud data (60-64) to filter the plural point data (70-79) not belonging to the target object (50, 51) out of each point cloud data (60-64); and performing a 3D modeling process on the filtered point cloud data (60-64) to generate the 3D object data. The 3D object data generated by the present disclosed example via execution of the pre-modeling process has minimum noise and is appropriate for 3D print.

Abstract: A protecting method for accessing material data adopted by a printer having a processing unit, a MCU for storing material data, and a transmission interface is disclosed. The method includes following steps of: determining whether to decide a data format at the processing unit once the material data is to be saved or read; generating confirm signal to be transmitted to the MCU through the transmission interface if the data format needs to be decided; looking up a table or performing a calculation according to content of the confirm signal at both the processing unit and the MCU for obtaining a corresponding data format; and, generating and transmitting transmission signal which includes the material data based on the corresponding data format by the processing unit and the MCU.

Abstract: An inkjet width adjustment method adapting to three-dimensional printing equipment is provided. The method in one of exemplary embodiments is provided hereafter. A three-dimensional digital model is obtained, and a slicing procedure is performed on the three-dimensional digital model to produce a layer object, wherein the layer object has a cross-sectional contour. A surface tilt degree corresponding to the cross-sectional contour is obtained from the three-dimensional digital model, and an ideal inkjet width of the layer object is calculated according to the surface tilt degree corresponding to the cross-sectional contour. After a print module is controlled to print the layer object, an inkjet module is controlled to spray ink along the cross-sectional contour of the layer object according to the ideal inkjet width. In addition, the three-dimensional printing equipment is also provided.

Abstract: A 3D printing device and a printing correction method are provided. The 3D printing device includes a printing nozzle, a printing platform and a controller. The printing nozzle is controlled to move on the movement plane. The printing platform includes a first tilt sensor to sense a tilting state of the printing platform. The controller is coupled to the first tilt sensor. The printing correction method adapted to the 3D printing device includes following steps: sensing the tilting state of the printing platform; controlling the printing nozzle to be depressed in a first position on the printing platform to change the tilting state of the printing platform; and, correcting the relative position of the print platform with the movement plane by the first position and the changes of tilting state of the printing platform sensed by the tilt sensor.

Abstract: A method of inwardly decreasing a coloring contour of a color 3D object includes: performing an object-slicing on a 3D object to generate records of object print-route information of printing layers; performing an image-slicing on the 3D object to generate records of color-printing information of the printing layers, wherein each color-printing information respectively involves an original coloring contour (3) of each printing layer; performing an inward decrease on the records of color-printing information to generate records of updated color-printing information, wherein each updated color-printing information involves an inwardly decreased coloring contour (4) of each printing layer, and the inwardly decreased coloring contour (4) is spaced from the original coloring contour (3) by an inwardly decreased distance (D); and causing a storage to store the records of object print-route information as route files, and storing the records of updated color-printing information as image files.

Abstract: An integrated 3D printing system (1) includes a server (6) and multiple 3D printers (4) respectively implementing different printing types. The server (6) opens up a 3D object (50) which is consisted of multiple separable sub-objects (51-57) through a graphic user interface (GUI, 61). The GUI (61) obtains a designated characteristic of each sub-object (51-57) for performing a characteristic-classification to the multiple sub-objects (51-57). The server (6) provides a plurality of configuration tools (31-33) through a processor (62). Each of the plurality of configuration tools (31-33) performs a slicing process on the sub-object (51-57) with the corresponding characteristic for generating slicing data, and transmits the slicing data with the corresponding characteristic to one of the multiple 3D printers (4) with a corresponding printing type for being printed.

Abstract: A three-dimensional (3-D) printing apparatus and an inkjet coloring method thereof are provided. The 3-D printing apparatus includes a platform, a three-dimensional printing head, an inkjet head and the method includes following steps. A layer thickness of at least one layer object forming a 3-D object is obtained. An ink discharge volume of an ink layer is adjusted according to the layer thickness, wherein the ink discharge volume is in positive correlation with the layer thickness. A building material is melted and printed out on the platform according to the layer thickness by the three-dimensional printing head to form the at last one layer object. Ink is dispensed on the at last one layer object according to the adjusted ink discharge volume by the inkjet head to form the ink layer.

Abstract: The disclosure provides a printing layer trimming method and an electronic device using the same. The printing layer trimming method is suitable for the electronic device and includes steps as follows. An original layer is converted into a first printing layer. At least one data region of the first printing layer is identified to identify at least one blank region of the first printing layer. Then, the blank region of the first printing layer is trimmed off The trimmed first printing layer is further converted into a print head signal data and provided to a printing device to print a corresponding three-dimensional structure. The disclosure also provides another printing layer trimming method and an electronic device using the same for trimming a second printing layer generated according to a print head signal data and providing the second printing layer to a printing device to print a corresponding three-dimensional structure.

Abstract: A method for processing printing information of a powder-bed type 3D printer is disclosed. The method comprises following steps of: generating a color image and an adhesive image for each printing slice in accordance with a 3D file; adjusting adhesive information of the adhesive image based on color information of the color image; and, generating a final printing image based on the color image and the adjusted adhesive image. The method prevents the 3D printing from jetting adhesive that may overlap with jetted colored ink by using the final printing image, so as to avoid the jetted color-ink being diluted by the adhesive, and powders being moist because of the overlap of the colored ink and the adhesive.

Abstract: A three-dimensional (3-D) printing apparatus and a three dimensional printing method are provided. The three dimensional printing method includes following steps. A closed printing path of a closed-contour structure is obtained, wherein the closed printing path includes a printing start point and a printing end point. A printing head is controlled to move from the printing start point and along a front segment of the closed printing path according to a first moving speed, and the printing head is controlled to simultaneously extrude a building material. After the printing head moves along the front segment of the closed printing path, the printing head is controlled to move to the printing end point along a rear segment of the closed printing path according to a second moving speed, and the printing head is controlled to simultaneously extrude the building material. The second moving speed is less than the first moving speed.

Abstract: A three-dimensional printing method and a three-dimensional printing device are provided. The three-dimensional printing method includes the following steps: obtaining printing information of a plurality of sliced objects and determine an top surface area of the three-dimensional object according to the printing information; obtaining first printing information of the top surface area in the printing information; driving a nozzle module according to the printing information to print the three-dimensional object. In the process of printing the three-dimensional object, the method further includes: driving the nozzle module to move above the top surface area again according to the first printing information to heat a plurality of printing materials located on the top surface area after the top surface area is printed such that the plurality of printing materials are heated to a molten state to fill gaps between the plurality of printing materials.

Abstract: A formation platform for a three-dimensional printing device is provided. The formation platform includes a base (100), one or more positioning assemblies (200), a substrate (300), and one or more calibration assemblies (400). The positioning assembly (200) includes a damper (210) and a resilient element (220), the damper (210) is movably disposed at the base (100), and the resilient element (220) is associated with the clamper (210) to push the clamper (210) toward the base (100). The substrate (300) is disposed on the base (100), and a portion of an edge of the substrate (300) is compressed by the damper (210) to fix the substrate on the base (100). The calibration assembly (400) includes a screw rod (410); the screw rod (410) is disposed on the base (100) and in contact with the substrate (300). By the positioning assembly (200) collaborating with the calibration assembly (400), horizontal adjustment of the substrate (300) can be made, and the substrate (300) can be easily installed or removed.

Abstract: A three-dimensional (3D) printing method and a 3D printing apparatus are provided. The 3D printing method includes: acquiring a plurality of slice information corresponding to a plurality of sliced objects of a 3D model; obtaining a contour pattern corresponding to one of the sliced objects according to the slice information; determining a plurality of reference points located in the contour pattern; determining a location of at least one support point on the sliced object according to the reference points located in the contour pattern; printing at least one support element connected to the at least one support point on a platform according to the location of the at least one support point, so that the 3D model is supported by the at least one support element and fixed to the platform.

Abstract: A three dimensional printing method and a three dimensional printing apparatus are provided. The three dimensional printing method includes: acquiring a first contour pattern and a first support point corresponding to an Nth sliced object according to a plurality of slice information of the sliced objects of a 3D model, and acquiring a second contour pattern and a plurality of reference points of an (N+1)th sliced object; determining second positions of second support points of the (N+1)th sliced object according to the first contour pattern, a supportable range of the first support point, the second contour pattern, and the reference points; and printing a support element on a platform according to the first position and the second position.