Abstract: A forming device for a three-dimensional printing machine is connected to a height adjusting mechanism of the three-dimensional printing machine, and is driven by the height adjusting mechanism to move vertically. The forming device includes an universal joint, a forming platform, a coupling shaft interconnecting the universal joint and the forming platform, and a clamping mechanism. The clamping mechanism includes a clamping arm adapted to interconnect the height adjusting mechanism and the universal joint, and having first and second arm portions movable relative to each other between a locking state to tightly clamp the universal joint, and a releasing state to release the universal joint so that the forming platform is movable relative to the clamping mechanism.

Abstract: A 3-D printing apparatus includes a base and a printing head disposed above the base. The base includes an adjustment platform having an adjustment side and a top surface, a first-adjustment mechanism, second-adjustment mechanisms and a printing bed. The first-adjustment mechanism includes an adjustment shaft, first and second gears and a linkage rod. The first gear disposed under the adjustment platform is engaged with the adjustment shaft to drive it to move along a normal direction of the top surface. The second gear is engaged with the first gear to drive it to rotate. The linkage rod extended to the adjustment side connects the second gear to drive it to rotate. The second-adjustment mechanisms arranged along the adjustment side are adapted to move along the normal direction. The printing bed disposed on the adjustment platform is engaged with the adjustment shaft and the second adjustment mechanisms to move therewith.

Abstract: A three dimensional printing apparatus including a tank filled with liquid forming material, a platform disposed in the tank and immersed in the liquid forming material, and a curing tool disposed next to the tank is provided. The tank has at least two forming areas in step manner. The tank and the platform are controlled to generate a relative planer motion, wherein the platform moves from a forming area in higher step towards another forming area in lower step. When the platform moves to one of the forming areas, the curing tool cures the liquid forming material between the platform and the forming area to form a solidification layer on the platform. As the platform moves by at least two forming areas to form at least two solidification layers, the solidification layers are stacked to form a three dimensional object.

Abstract: A three-dimensional printing apparatus and a printing method thereof are provided. The three-dimensional printing apparatus includes a tank, a movable platform, a light source module, and a controller. The bottom of the tank includes an irradiated area and a non-irradiated area. The movable platform is movably disposed above the tank. The light source module is disposed under the tank and only provides light to the irradiated area to irradiate a liquid-formation material. The controller controls the movable platform to move along a first axis direction, such that at least one layer object of a three-dimensional object is cured on the movable platform layer by layer. The layer object is composed of object sections. During a period of forming one layer object, the controller controls the movable platform to move on a horizontal plane, such that the object sections of the layer object are cured sequentially above the irradiated area.

Abstract: A three-dimensional printing device including a processing unit and a mixing unit is provided. The processing unit formats a sliced file into a printing head signal file, wherein the sliced file and the printing head signal file correspond to a three-dimensional structure, the sliced file includes layer data corresponding to a plurality of layers of the three-dimensional structure, and the print head signal file includes layer printing data corresponding to the layers of the three-dimensional structure. The mixing unit combines part of the layer data in the sliced file and part of the layer printing data in the printing head signal file to derive a hybrid file, and stores the hybrid file in a storing unit of the electronic device, wherein the layer data and the layer printing data in the hybrid file correspond to different layers of the three-dimensional structure.

Abstract: A 3-D printing apparatus including a base and a printing head module is provided. The base includes a first supplying platform, a printing bed and a second supplying platform disposed in order along a printing path. The first supplying platform and the second supplying platform carry building powder respectively; the first supplying platform and the second supplying platform are alternately lifted to a printing-reference plane of the base for supplying the building powder to the printing bed. The printing head module is movably disposed above the base and configured to move along a forward direction of the print path to transfer the building powder of the first supplying platform onto the printing bed, and move along a backward direction of the printing path to transfer building powder of the second supplying platform onto the printing bed to form bonded powder layers stacked together to form a 3-D object.

Abstract: A 3D printing device, which is adapted to print a second object on a first object. The 3D printing device includes a body, a 3D printing unit, a sensor unit, a storage unit, a control unit and a carrier plate. The control unit is electrically connected to the 3D printing unit, the storage unit and the sensor unit. The storage unit stores initial coordinates, and the initial coordinates correspond to an initial printing position of the 3D printing unit. The carrier plate is located at a bottom of the body and has a ocular mark. The first object is adapted to be placed on the carrier plate. The sensor unit senses a height of the first object relative to the carrier plate, and the control unit drives the 3D printing unit to print the second object on the first object according to the height and the initial coordinates.

Abstract: The invention provides a lead screw guide assembly and a three-dimensional (3D) printing apparatus, wherein the lead screw guide assembly includes a base, a first guiding member, a second guiding member and a lead screw guide. The first guiding member is disposed on the base and has a first channel extending along an axis. The second guiding member is movably coupled to the first guiding member along the axis. The lead screw guide is movably disposed on the base along the axis and located in the first channel. The lead screw guide is coupled to the second guiding member, so as to drive the second guiding member to move along the axis and hide in the first channel or protrude from the first channel.

Abstract: A 3D printing device, which is adapted to print a second object on a first object. The 3D printing device includes a body, a 3D printing unit, a sensor unit, a storage unit, a control unit and a carrier plate. The control unit is electrically connected to the 3D printing unit, the storage unit and the sensor unit. The storage unit stores initial coordinates, and the initial coordinates correspond to an initial printing position of the 3D printing unit. The carrier plate is located at a bottom of the body and has a ocular mark. The first object is adapted to be placed on the carrier plate. The sensor unit senses a height of the first object relative to the carrier plate, and the control unit drives the 3D printing unit to print the second object on the first object according to the height and the initial coordinates.

Abstract: A method for arranging joints to a 3D model is present. The method first obtains a 3D file, and executes a slice process to a 3D model recorded in the 3D file for obtaining a plurality of cross sections. During the slice process, the method determines if differences between each two cross-section areas of two adjoined cross sections is larger than a threshold. If the difference between the two cross-section areas of two adjoined cross sections is larger than the threshold, the method obtains a corresponding joint data from a database, and arranges the joint data into a position between the two adjoined cross sections. The method finally outputs the arranged 3D model to a 3D printer.

Abstract: A 3D printing device is provided. The 3D printing device is adapted to print a 3D object including a plurality of layer objects. The 3D printing device includes a weight sensor, which is configured to measure an actual weight value of the layer objects formed on a carrying surface or configured to measure an actual weight value of a feed tray. A controller of the 3D printing device estimates an ideal weight value corresponding to a first layer object according to a printing sequence of the first layer object in the layer objects. The controller receives the actual weight value corresponding to the first layer object from the weight sensor, and compares the ideal weight value with the actual weight value to determine whether printing abnormity is occurred. According to the disclosure, the printing quality of the 3D printing device is improved.

Abstract: A three-dimensional image file searching method and a three-dimensional image file searching system are provided, and the three-dimensional image file searching method includes the following steps. A three-dimensional query image file is received. The three-dimensional query image file is converted to generate a first image group including a plurality of two-dimensional image files. The first image group is compared with a plurality of second image groups corresponding to a plurality of three-dimensional candidate image files respectively in a database, so as to obtain a search result conforming to the three-dimensional query image file.

Abstract: A three-dimensional printer device includes a supplying apparatus, a formation table, a recycling trough, a distribution apparatus, a power collection cover, and a control unit. The supplying apparatus is provided to contain the powder material. The formation table has a horizontal surface, and one side of the horizontal surface is disposed adjacent to the supplying apparatus. The recycling trough has an opening, the opening is disposed at the other side of the horizontal surface opposite to the supplying apparatus. The distribution apparatus includes a roller; the roller is movable across the horizontal surface between the supplying apparatus and the recycling trough, so that the powder material inside the supplying apparatus can be distributed onto the horizontal surface. The powder collection cover covers the roller. The control unit is electrically connected to the distribution apparatus and controls the roller to move between the supplying apparatus and the recycling trough.

Abstract: A three dimensional structure including a casing and a plurality of filling members is provided. The casing has a first opening. The filling members are disposed inside of the casing for supporting the casing, such that a plurality of hollow portions is defined by the casing and the filling members. The first opening connects between one of the hollow portions and the external environment, and the filling member located between two adjacent hollow portions has at least one second opening for connecting the two adjacent hollow portions. A three dimensional printing method is also provided.

Abstract: A three-dimensional (3D) printing module including a tank filled with a liquid forming material, a top cover assembled on the tank to close the tank, a modeling platform assembled to the cover, and a first tenon movably disposed in the cover is provided. The modeling platform is immersed in the liquid forming material in the tank. When the first tenon is driven along a second axis, the cover and the modeling platform are driven along a first axis to open the tank. A 3D printing apparatus is also provided.

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.