Abstract: A three dimensional printing apparatus used for printing a printed circuit board (PCB) in melting manner is provided. The three dimensional printing apparatus includes a platform, a first printing unit, a second printing unit, a third printing unit, and a control unit. The first printing unit supplies a meltable insulation material, the second printing unit supplies a meltable conductive material, and the third printing unit supplies a meltable adhesive material. The control unit is electrically connected to the first printing unit, the second printing unit and the third printing unit, wherein the first printing unit is driven by the control unit to generate an insulation layer, the second printing unit is driven by the control unit to generate a conductive layer, and the third printing unit is driven by the control unit to generate an adhesion layer between the conductive layer and the insulation layer to form the PCB.

Abstract: A three-dimensional printing apparatus including a supporting platform, first tanks, an elevating platform disposed above the supporting platform, a light source module disposed corresponding to the elevating platform, and a control unit is provided. The first tanks are disposed on the supporting platform and filled with liquid forming materials respectively. After choosing one of the liquid forming materials, the control unit controls the supporting platform to move, in relative to the light source module and the elevating platform, till the chosen liquid forming material is moved to correspond to the light source module, so as to form a three-dimensional object through the chosen liquid forming material. Another three-dimensional printing apparatus is provided, in which a control unit controls the light source and the elevating platform to move to correspond to the chosen liquid forming material, so as to form a three-dimensional object through the chosen liquid forming material.

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 scanner includes a rotary platform having a carrying surface, a support rack, an adjustment mechanism, a sensing device, and a control unit. The rotary platform is at one end of the support rack. The adjustment mechanism is at the other end of the support rack. The sensing device is arranged on the adjustment mechanism to generate a first or second sensing signal when the sensing device rotates to a first location. The control unit is coupled to the sensing device, the adjustment mechanism, and the rotary platform to rotate the rotary platform according to the first sensing signal, drive the sensing device to perform 3-D scanning on an object, or control the adjustment mechanism to drive the sensing device to rotate by a specific angle according to the second sensing signal, so that the sensing device faces the carrying surface to perform 2-D scanning on the object.

Abstract: A heating platform including a substrate, a heating plate, a conducting plate and a temperature sensing element is provided. The substrate has a first surface for forming a three dimensional (3D) object and an opposite second surface. The heating plate is attached to the second surface of the substrate to heat the substrate. The conducting plate is attached to the heating plate, and the heating plate is coved between the substrate and the conducting plate, wherein the area of the conducting plate is smaller than the area of the substrate, and an end of the conducting plate extends to the outer of the heating plate. The temperature sensing element is disposed at the end of the conducting plate extending to the outer of the heating plate to sense the temperature of the substrate through the conducting plate. A 3D printing apparatus including the heating platform aforementioned is also provided.

Abstract: A printing head module is provided. The printing head module includes a bracket, a motor and a printing head. The bracket is slidingly disposed on a sliding rail and includes a containing cavity and at least one first locking portion. The motor is coupled to the bracket for driving the bracket to slide along the sliding rail. The printing head includes a material-supply channel, a nozzle and at least one second locking portion structurally corresponding to the first locking portion. The material-supply channel is connected to the nozzle, so that when the printing head is detachably disposed in the containing cavity, the second locking portion is locked with the first locking portion to fix the printing head to the bracket.

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 and a nozzle temperature adjustment method thereof are provided, and the nozzle temperature adjustment method includes the following. A first melting point temperature of a first feed material and a second melting point temperature of a second feed material are read when a feed material switch procedure is executed. The first melting point temperature and the second melting point temperature are compared, and the higher one is selected to serve as an initial conversion temperature. After executing a slag processing procedure according to the initial conversion temperature, the initial conversion temperature is adjusted to the second melting point temperature.

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 base, a printing unit, and a control unit is provided for forming a three-dimensional object on a forming area layer by layer with a material. The base has a body and a moving member assembled therein. The forming area covers the moving member. The control unit is electrically connected to the moving member and the printing unit. The printing unit is controlled by the control unit, wherein after the three-dimensional object is formed, the moving member is controlled by the control unit to move relative to the body, such that at least a portion of the three-dimensional object is detached from the moving member.

Abstract: A gear, a gear assembly, and an apparatus including the gear assembly are provided. The gear assembly includes two gears, and each of the gears has a ring-shaped body, a gear portion, and a ring-shaped flange. The ring-shaped body has a central axis, and the gear portion and the ring-shaped flange are around the central axis as a center and surround peripheries of the ring-shaped body. The ring-shaped flange is closely adjacent to the gear portion along an axial direction of the central axis. The ring-shaped flanges of the two gears lean against each other, and the gear portions of the two gears are engaged with each other.

Abstract: A three-dimensional (3-D) printing apparatus including a base, a printing head module and a control unit is provided. The base has a carrying surface. The printing head module is disposed above the base. The printing head module includes a body and a discharge outlet switching component. The body includes a material supplying channel. The discharge outlet switching component is movably disposed at the body. The discharge outlet switching component includes a plurality of discharge outlets. Diameters of the discharge outlets are different from each other. The control unit is configured to choose one of the discharge outlets according to the diameters and connect the chosen discharge outlet to the body, such that the material supplying channel is connected to the corresponding discharge outlet.

Abstract: A 3-D printing apparatus is configured to make a modeling material form a 3-D object layer by layer. The 3-D printing apparatus includes a printing assembly and a cleaning unit. The printing assembly includes a feeding tube, a nozzle and a driving wheel set disposed between the feeding tube and the nozzle to drive the modeling material transferred to the nozzle from the feeding tube and then exiting from the printing assembly via the nozzle so as to form a 3-D object layer by layer. The cleaning unit has a brush, in which the brush leans against on the driving wheel set to clean out the residual modeling material while the driving wheel set rotates relatively to the cleaning unit.

Abstract: A handle module, a hard disk drive (HDD) assembly, and a server are provided. The server includes a case with a mounting hole, a main board, and the HDD assembly. The HDD assembly includes a tray with two slide rails and a fixing hole, a HDD, the handle module, and a rubber pad. The handle module includes a handle with a body plate and a sidewall, a backing sheet, and a switch button. The body plate has a first opening and an inner surface. The sidewall has a second opening. The switch button is disposed between the backing sheet and the inner surface and has a first protrusion protruded out of the first opening and a second protrusion. The number of components disassembled from the server relies on the relative position between the second protrusion and the second opening, the fixing hole, and the mounting hole.

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 (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 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 variable height trolley and a height displaying assembly thereof, and the height displaying assembly includes a height indicator unit, a spool and an connecting unit. The height displaying assembly obtains a height of platform from a serial mechanical action between the connecting unit and the platform. The height displaying assembly uses mechanical approach to instantly show the height of the platform.

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 paper feeding device and a multi-function printer using the same are provided. At least one paper is fed from a paper entrance toward a paper exit by the paper feeding device, and the paper feeding device includes a first feeding path, a second feeding path, a pickup roller component and a suction element. The first feeding path intersects with a first end of the second feeding path so as to form a first intersection. The pickup roller component is disposed on the first feeding path to feed the paper located at the paper entrance into the first feeding path. The suction element is disposed above the first intersection and provides a suction. When the paper passes through the pickup roller component and is located between the pickup roller component and the suction element, the suction element guides the paper closest to the suction element onto the first feeding path.