A method for additive manufacturing process parameter monitoring of additively manufactured articles and associated raw materials, the method comprising the steps of: at an additive manufacturing raw material supplier located at a first location, packaging a raw additive manufacturing material, which may be a metal powder, and placing a sensor device inside the packaging, wherein the sensor device, which is powered by ambient energy, monitors one or more material parameters, as the packaging moves through a supply chain, and wherein sensed parameters from the sensor device are recorded periodically until the raw material is loaded to an additive manufacturing tool at a second location, different from the first location; prior to utilizing the sensor device, registering an identity for the sensor with blockchain rules to establish a trust on data originating from the sensor device; at an additive manufacturing article supplier located at the second location, using an additive manufacturing tool, manufacturing an article in accordance with a design file provided to the additive manufacturing supplier from an additive manufacturing designer located at a location different from the first and second locations; at the additive manufacturing supplier, utilizing the sensor device to monitor one or more process parameters associated with manufacturing the article, wherein the sensor device is: (1) connected to wireless network, (2) powered by ambient energy, and (3) sized and configured for monitoring the process parameters in situ at the additive manufacturing tool; at the additive manufacturing supplier, sending data regarding the one or more process parameters from the sensor device to a network node associated with the additive manufacturing tool; at the additive manufacturing supplier, generating a cryptographic distributed ledger comprising the data regarding the one or more process parameters, wherein the ledger is generated in the manner of a blockchain; and from the additive manufacturing supplier, the distributed ledger that is also accessible to the additive manufacturing designer using a private network, wherein the analyses of the data regarding the one or more process parameters are performed automatically by the blockchain rules, where in rules defined by additive manufacturing designer, for any anomalies during the manufacture of the article.

A powder container (10) comprising a pressure vessel (12) for containing a quantity of powder (14) and a quantity of pressurised gas (32), an outlet through which, in use, the powder (14) can flow out of the pressure vessel (12), and an outlet valve (24) for selectively opening and closing the outlet, wherein the container (10) further comprises a data sensing and/or logging means (56, 58, 60, 62, 64) adapted to monitor and/or log various parameters of the powder (14) and/or the pressurised gas (32) and further comprising a control unit (54) adapted record and log the sensor readings either continuously, or at intervals, the control unit (54) comprising a communications module adapted to relay sensor readings, or log files, to a remote monitoring station.

An example system includes a three-dimensional (3D) printer to generate a 3D object and a surface feature formation arrangement to receive the 3D object. The 3D object has at least one surface with a layer of at least partly uncured material. The surface feature formation arrangement includes a controller and a heat source. The controller is to operate the heat source to selectively apply heat to the at least one surface of the 3D object. The heat from the heat source is to transform the at least partly uncured material to form a selected feature on the at least one surface.

An example system includes a three-dimensional (3D) printer to generate a 3D object and a surface feature formation arrangement to receive the 3D object. The 3D object has at least one surface with a layer of at least partly uncured material. The surface feature formation arrangement includes a controller and a heat source. The controller is to operate the heat source to selectively apply heat to the at least one surface of the 3D object. The heat from the heat source is to transform the at least partly uncured material to form a selected feature on the at least one surface.

In one example a system is for post-processing a three-dimensional (3D) object generated in an additive manufacturing process in which an identifiable agent is applied to a portion of a build material to form a portion of the 3D object. The system comprises an identification unit and a sensor. The identification unit is to cause the identifiable agent to become distinguishable to thereby cause the portion of the 3D object, corresponding to the portion of build material to which the identifiable agent was applied, to be distinguishable from any build material remnant disposed on the 3D object and to which no identifiable agent was applied. The sensor is to distinguish the build material remnant from the portion of the 3D object.

A non-transitory medium having machine-readable instructions stored thereon is provided. The instructions include reference-object code to print a three-dimensional object in a coordinate system of a printer. The three-dimensional object includes a first loop portion comprising a length of a cylindrical body that extends arcuately between spaced apart ends thereof in through each axis of the coordinate system. A second loop portion comprising another length of the cylindrical body extends arcuately between spaced apart ends thereof through each axis of the coordinate system. The second loop portion is opposing and coupled with the first loop portion by respective curved leg portions of the cylindrical body to define a continuous loop that circumscribes a virtual axis thereof aligned with a layering direction of the printer. Each portion of the cylindrical body is asymmetrical with respect to each other.

Apparatuses of a security device with chaosmetric patterns are disclosed. In one aspect, embodiments of the present disclosure include a security device having a physical surface having formed thereon a composite pattern. The composite pattern can be created from overlap of the imprinting of a first halftone pattern and a second halftone pattern. The first halftone pattern can be created from a first basic building block which forms chaosmetric artifacts in the physical surface upon printing.

A method for the verification and authentication of additive manufactured product, comprising the steps of receiving, from a customer, at least one customer requirement for a product, deriving at least one manufacturing requirement and generating a product geometry file for the product, recording, by a first computing device, to a distributed transaction register, a first transaction reflecting certification of the product geometry file, obtaining a first output reflecting the first transaction, printing the product with a 3D printer, recording, by a second computing device, to the distributed transaction register, a second transaction reflecting the printing of the product and the first output, obtaining a second output reflecting the second transaction, embedding within the product a unique code reflecting the second output, whereby the product geometry file and the printing of said product may be verified with the unique code such that the product may be authenticated.

An additive manufacturing system including a two-dimensional energy patterning system for imaging a powder bed is disclosed. Improved structure formation, part creation and manipulation, use of multiple additive manufacturing systems, and high throughput manufacturing methods suitable for automated or semi-automated factories are also disclosed.

A manipulator device such as a robot arm that is capable of increasing manufacturing throughput for additively manufactured parts, and allows for the manipulation of parts that would be difficult or impossible for a human to move is described. The manipulator can grasp various permanent or temporary additively manufactured manipulation points on a part to enable repositioning or maneuvering of the part.