Abstract

[Problem] To provide a program, for example, with which it is possible to further improve the accuracy of the shape of a three-dimensional fabricated object fabricated by means of a 3D printer for construction than before. [Solution] According to one embodiment of the present invention, a program for use in a 3D printer for construction is provided, the program being configured to cause a computer to perform an acquisition step, a division step, and a generation step. In the acquisition step, three-dimensional shape data indicating a target shape of a three-dimensional fabricated object to be fabricated by means of the 3D printer for construction is acquired. In the division step, some or all of the three-dimensional shape data is divided into a plurality of pieces of slice data. The slice data is data that has an arbitrary thickness along a fabrication direction of the three-dimensional fabricated object. The slice data has a contour corresponding to the outer surface of the three-dimensional fabricated object. In the generation step, a tool path which is a movement path for a nozzle used in the 3D printer for construction is generated. The process of generating the tool path includes adjustment processing in which the target shape of the three-dimensional fabricated object is adjusted on the basis of the slice data.

IPC Classes  ?

• B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 50/00 - Data acquisition or data processing for additive manufacturing
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 80/00 - Products made by additive manufacturing
• E04B 1/00 - Constructions in generalStructures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs

Abstract

[Problem] To provide a shaped article production method and the like that makes it possible to obtain a shaped article in a stable manner. [Solution] One embodiment of the present invention provides a shaped article production method using a 3D printing material obtained by mixing a plurality of types of raw materials. The production method comprises an acquisition step, an adjustment step, and a printing step. In the acquisition step, one or more parameters related to physical properties of the 3D printing material in the process of the mixing for the 3D printing material and/or after the mixing are acquired. In the adjustment step, a mode related to blending of at least one raw material among the plurality of types of raw materials of the 3D printing material is adjusted on the basis of the one or more acquired parameters. In the printing step, printing is performed in a predetermined area using the mode-adjusted 3D printing material.

IPC Classes  ?

• B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
• B28C 7/02 - Controlling the operation of the mixing
• B28C 7/04 - Supplying or proportioning the ingredients
• B29C 64/10 - Processes of additive manufacturing
• B29C 64/314 - Preparation
• B29C 64/386 - Data acquisition or data processing for additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 40/10 - Pre-treatment
• B33Y 50/00 - Data acquisition or data processing for additive manufacturing

Abstract

[Problem] To provide a construction-use 3D printer that can be easily installed. [Solution] A construction-use 3D printer according to one embodiment of the present invention comprises a nozzle configured so as to discharge a shaping material, and a body frame supporting the nozzle. The construction 3D printer is configured such that: at least when the shaping material is being discharged, the body frame comprises a first frame for supporting the nozzle so that the same can move along a first axis, a second frame for supporting the first frame so that the same can move along a second axis intersecting the first axis, and a third frame for supporting the second frame so that the same can move along a third axis intersecting with both the first axis and the second axis; and the first frame, the second frame, and/or the third frame can be displaced so as to be overlaid over a different site of the body frame.

IPC Classes  ?

• B29C 64/25 - Housings, e.g. machine housings
• B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
• B29C 64/236 - Driving means for motion in a direction within the plane of a layer
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

[Problem] To provide a structure manufacturing method capable of appropriately managing the state of a structure. [Solution] One embodiment of the present invention provides a method for manufacturing a structure. This manufacturing method comprises a formation step and an installation step. In the formation step, a curable material, which is a powder or paste material, to be mineralized via a hydration reaction, a polymerization reaction, or firing is ejected from a 3D printer to form a shaped object. In the installation step, a sensor is installed in the shaped object during the formation step, and a structure in which the sensor is integrated with the cured body of the shaped object is obtained.

IPC Classes  ?

• B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 50/00 - Data acquisition or data processing for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

[Problem] To provide a powder composition or the like having excellent balance between the effect on the environment and physical properties when applied to an additive manufacturing process. [Solution] One embodiment of the present invention provides a powder composition for generating a mortar material for additive manufacturing. The powder composition contains a binder (A) and a fine aggregate (B). The powder composition contains, with respect to 100 parts by mass of the entirety of the fine aggregate (B), 20 parts by mass or more of a material selected from the group consisting of carbon-fixing materials and waste concrete materials. The powder composition further contains a thickener (C).

IPC Classes  ?

• C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
• B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• C04B 18/16 - Waste materialsRefuse from building or ceramic industry
• C04B 24/38 - Polysaccharides or derivatives thereof

Abstract

A nozzle module according to the present invention comprises: a traveling body 44 which sits on a movable rail 43 that is capable of moving up and down, and which is capable of traveling along the movable rail 43; a nozzle 3 which is held on the traveling body 44 and is capable of ejecting a fluid; and a detection means 5 which detects a load that causes the nozzle 3 to move upward with respect to the traveling body 44 or detects upward movement of the nozzle 3 with respect to the traveling body 44. Furthermore, a 3D printer 1 comprises: a frame 2 which includes a plurality of support columns extending in the up-down direction; a movable rail 21 which is capable of moving in the up-down direction with respect to the frame 2; and a drive device 4 which includes a nozzle module and drives the nozzle 3 within the space W surrounded by the support columns of the frame 2.

IPC Classes  ?

• B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
• B05B 15/16 - Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired placesArrangements for handling or replacing damaged parts for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards
• B29C 64/205 - Means for applying layers
• B29C 64/209 - HeadsNozzles
• B29C 64/236 - Driving means for motion in a direction within the plane of a layer
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

[Problem] To provide a powder composition and the like that are suitable for use in an additive manufacturing process. [Solution] One embodiment of the present invention provides a powder composition for use in generating a mortar material for additive manufacturing. The powder composition includes a binder (A), a fine aggregate (B), and an admixture (C) that imparts thixotropy.

IPC Classes  ?

• C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
• B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• C04B 14/04 - Silica-rich materialsSilicates
• C04B 14/28 - Carbonates of calcium
• C04B 14/40 - Asbestos
• C04B 16/06 - Macromolecular compounds fibrous
• C04B 18/08 - Flue dust
• C04B 18/14 - Waste materialsRefuse from metallurgical processes
• C04B 22/08 - Acids or salts thereof
• C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C04B 24/38 - Polysaccharides or derivatives thereof