Abstract: A 3D printing temperature prediction method and system is provided. For a printed element, the corresponding element state thereof is determined based on its positional relationship with a current printing element. Based on a temperature prediction method corresponding to the element state, the temperature prediction data of each printed element in a current printing time window is determined and output. This solution employs different temperature prediction methods for different element states of printed elements, thereby improving the computational efficiency of temperature prediction while ensuring the accuracy of temperature prediction.

Abstract: Provided are a three-dimensional (3D) printing material, and a printing method, preparation method, and printing filament thereof, which relate to the technical field of 3D printing. The 3D printing material provided in the present disclosure is produced by introducing a crystalline polymer with a high melting point based on a material including only a single crystalline polymer. The 3D printing material exhibits both excellent printing warpage resistance and superior heat resistance.

Abstract: A modular storage device is provided. The modular storage device includes a housing configured to store a target object and separate the internal space of the housing from the external environment. The sidewall of the housing includes a first air outlet and a first air inlet. The first air outlet is configured to be coupled with an independent drying unit to allow the drying unit to expel the internal air of the internal space. The first air inlet is configured to be coupled with the drying unit to allow the drying unit to introduce external air into the internal space. This modular storage device enables the separation of storage and drying of target objects to accommodate different application scenarios.

Abstract: Provided are a composite material for three-dimensional (3D) printing, a 3D printing method, and a 3D printed part. The composite material includes a continuous matrix phase and a fibrous dispersed phase distributed in the continuous matrix phase. The continuous matrix phase is made of a first crystalline polymer and the fibrous dispersed phase is made of a second crystalline polymer. A melting point of the second crystalline polymer is higher than a melting point of the first crystalline polymer. The composite material for 3D printing is further subjected to single-screw extrusion to produce the 3D printing filament. The 3D printing filament is then subjected to 3D printing. Both an extrusion temperature and a printing temperature are higher than the melting point of the first crystalline polymer and lower than the melting point of the second crystalline polymer.

Abstract: A method for generating 3D printing data, a method for planning a path, a system and a storage medium are provided; the method for generating 3D printing data comprises: generating at least one slice pattern based on a projected contour of a model of a to-be-printed object, wherein each slice pattern comprises one or more texture lines, and the one or more texture lines comprise non-closed texture lines whose endpoints are located on the projected contour; and generating 3D printing data based on spatial positions of printing lines of cross-sectional patterns, with the cross-sectional patterns determined based on the at least one slice pattern. wherein the printing lines comprise texture lines. The present disclosure adopts 3D printing to realize structural designs that cannot be achieved using conventional fabrics, thereby increasing design freedom of fabrics in terms of both appearance and functionality.

Abstract: A printing method of a 3D printer is provided. The method includes: sequentially conveying a printing material into a preheating section, a first heat resistance section, and a melting section of a printing nozzle of the 3D printer along a target direction, and extruding the printing material from an outlet of the printing nozzle; setting a heating temperature of the preheating section to a temperature T1, so that the printing material remains in a solid state when passing through the preheating section; and setting a heating temperature of the melting section to a temperature T2, so that the printing material is transformed into a fluid state at the temperature T2. The first heat resistance section restricts heat conduction between the preheating section and the melting section, so that the printing material in the preheating section remains in the solid state.

Abstract: A modular storage device is provided. The modular storage device includes a housing configured to store a target object and separate the internal space of the housing from the external environment. The sidewall of the housing includes a first air outlet and a first air inlet. The first air outlet is configured to be coupled with an independent drying unit to allow the drying unit to expel the internal air of the internal space. The first air inlet is configured to be coupled with the drying unit to allow the drying unit to introduce external air into the internal space. This modular storage device enables the separation of storage and drying of target objects to accommodate different application scenarios.

Abstract: A 3D printing nozzle, a 3D printer and a printing method are provided. The 3D printing nozzle includes a nozzle body to convey and extrude a printing material along a target direction, and sequentially includes at least a preheating section, a first heat resistance section, and a melting section along the target direction; and a heating device connected to the nozzle body. During operation, the heating device heats the preheating section to a temperature T1, and the melting section to a temperature T2. The printing material remains solid when passing through the preheating section at the temperature of T1; the printing material turns into a fluid state when passing through the melting section at the temperature T2, The first heat resistance section restricts the heat conduction between the preheating section and the melting section, so that the printing material in the preheating section remains in the solid state.

Abstract: A 3D printing wire, a method for preparing the 3D printing wire, a 3D printing method, and a 3D printing apparatus are provided. The method for preparing the 3D printing wire includes: co-extruding a first polymer matrix composite and a second polymer matrix composite to produce a 3D printing wire with a core-shell structure. In the 3D printing wire with the core-shell structure, a shell structure formed by the second polymer matrix composite is wrapped around a core structure formed by the first polymer matrix composite. A filler material volume fraction of the first polymer matrix composite is larger than a filler material volume fraction of the second polymer matrix composite. The material for the shell structure includes an unfilled polymer material with a composite filling content of zero.

Abstract: A filament outlet device for installing on a filament storage device is provided, which includes a first outlet for a first filament having a first diameter; and a first outlet cover, configured to open or close the first outlet; the first outlet cover includes a second outlet for a second filament having a second diameter.

Abstract: Provided is a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly (lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly (lactic acid) filament can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly (lactic acid) filaments can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. It more specifically discloses a filament for use in three-dimensional printing which is comprised of crystalized poly (lactic acid), wherein said filament has a diameter which is within the range of 1.

Abstract: A filament outlet device for installing on a filament storage device is provided, which includes a first outlet for a first filament having a first diameter; and a first outlet cover, configured to open or close the first outlet; the first outlet cover includes a second outlet for a second filament having a second diameter.

Abstract: A modular storage device is provided. The modular storage device includes a housing configured to store a target object and separate the internal space of the housing from the external environment. The sidewall of the housing includes a first air outlet and a first air inlet. The first air outlet is configured to be coupled with an independent drying unit to allow the drying unit to expel the internal air of the internal space. The first air inlet is configured to be coupled with the drying unit to allow the drying unit to introduce external air into the internal space. This modular storage device enables the separation of storage and drying of target objects to accommodate different application scenarios.

Abstract: A 3D printing wire, a method for preparing the 3D printing wire, a 3D printing method, and a 3D printing apparatus are provided. The method for preparing the 3D printing wire includes: co-extruding a first polymer matrix composite and a second polymer matrix composite to produce a 3D printing wire with a core-shell structure. In the 3D printing wire with the core-shell structure, a shell structure formed by the second polymer matrix composite is wrapped around a core structure formed by the first polymer matrix composite. A filler material volume fraction of the first polymer matrix composite is larger than a filler material volume fraction of the second polymer matrix composite. The material for the shell structure includes an unfilled polymer material with a composite filling content of zero.

Abstract: A 3D printing nozzle, a 3D printer and a printing method are provided. The 3D printing nozzle includes a nozzle body to convey and extrude a printing material along a target direction, and sequentially includes at least a preheating section, a first heat resistance section, and a melting section along the target direction; and a heating device connected to the nozzle body. During operation, the heating device heats the preheating section to a temperature T1, and the melting section to a temperature T2. The printing material remains solid when passing through the preheating section at the temperature of T1; the printing material turns into a fluid state when passing through the melting section at the temperature T2, The first heat resistance section restricts the heat conduction between the preheating section and the melting section, so that the printing material in the preheating section remains in the solid state.

Abstract: The polymeric composition of this invention can be used as a temporary support material in the additive manufacturing of three dimensional articles without compromising ultimate product quality, reducing printing speed, requiring printers of increased complexity, or increasing cost or the incidence of printer jamming. This invention more specifically discloses a polymeric composition which is useful as a temporary support material for utilization in three-dimensional printing, this polymeric composition comprising of a first polymeric component which is suitable for use as a modeling material and a second polymeric component which is immiscible with the first polymeric component, wherein the polymeric composition has a continuous phase which is comprised of the second polymeric component, and wherein the polymeric composition has a Shore A hardness of at least 80.

Abstract: A method for generating 3D printing data, a method for planning a path, a system and a storage medium are provided; the method for generating 3D printing data comprises: generating at least one slice pattern based on a projected contour of a model of a to-be-printed object, wherein each slice pattern comprises one or more texture lines, and the one or more texture lines comprise non-closed texture lines whose endpoints are located on the projected contour; and generating 3D printing data based on spatial positions of printing lines of cross-sectional patterns, with the cross-sectional patterns determined based on the at least one slice pattern. wherein the printing lines comprise texture lines. The present disclosure adopts 3D printing to realize structural designs that cannot be achieved using conventional fabrics, thereby increasing design freedom of fabrics in terms of both appearance and functionality.

Abstract: The polymeric composition of this invention can be used as a temporary support material in the additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, increasing the incidence of printer jamming, or requiring printers of increased complexity. This invention more specifically discloses a polymeric composition which is particularly useful as a temporary support material for utilization in three-dimensional printing, said polymeric composition being comprised of a first polymeric component which is suitable for use as a modeling material and a second polymeric component which is immiscible with the first polymeric component, wherein the polymeric composition has a continuous phase, wherein the continuous phase is comprised of the second polymeric component, and wherein the polymeric composition has a Shore A hardness of at least 80.

Abstract: An apparatus (200) for smoothing a surface of an object (100). The apparatus includes a chamber (210), a reservoir (324) configured to hold a liquid (322), and a nebulizer assembly (212) configured to generate a mist (104) from the liquid into the chamber. The nebulizer assembly includes a mesh (732), a vibrating element (731), and a wick (736). The object is received in the chamber and the mist is configured to surround the object.

Abstract: The present application relates to a composition, which comprises: (a) a photopolymerizable substance; (b) a thiol; (c) a photoinitiator; (d) a thermosensitive polymer; and (e) water, and can be used as a bio-ink for preparing a bio-hydrogel for direct-writing 3D printing. The present invention further relates to a method for preparing the composition, and a direct-writing 3D printing method using the composition.