Hewlett-packard Development Company, L.p.

Hewlett-packard Company

Hewlett Packard Enterprise Development LP

Other

Trustees of the Colorado School of Mines

Steven J Simske

Malgorzata M Sturgill

Helen Balinsky

Matthew Donald Gaubatz

Jason S Aronoff

Marie Vans

Ning Ge

Robert Alan Ulichney

Guy Adams

Stephen Bernard Pollard

A Marie Vans

Paul S Everest

Tong Zhang

Mark Jacobsen

Lihua Zhao

Gary Joseph Dispoto

Wei T Huang

Viktor Shkolnikov

Anita Rogacs

Daniel Robert Blakley

Guillaume Oget

Liqun Chen

Ehud Chatow

Cyril Brignone

Malena Rosa Mesarina

Omer Gila

Jun Zeng

Napoleon J Leoni

Jordi Arnabat Benedicto

Paul J Benning

Xiaofan Lin

Sherif Yacoub

Roland John Burns

Chandrakant D Patel

Henryk Birecki

Jerry J Liu

Vinay K Deolalikar

Helen Ann Holder

Georgia Koutrika

Virgil Kay Russon

Oscar Martinez

Lei Liu

Lester Ortiz

Jorge E Badillo

Galia Golodetz

Nathan McPherson Moroney

Jerome Alexander Rolia

Ingeborg Tastl

Andrew E Fitzhugh

John Stephen Dunfield

Randall Edward Grohs

Brian E Hoffmann

Bill Serra

Masoud K Zavarehi

Marcelo Aita Riss

David S Kellar

David George

Eric T Martin

James Michael Gardner

Daryl E Anderson

William James Allen

Hui Chao

Peter G Hwang

Paolo Faraboschi

Doron Shaked

Makarand P Gore

Paul A Friedman

Alejandro Manuel De Pena

Boris Balacheff

James Elmer Abbott, Jr

Carl Staelin

Douglas A Sexton

Jian Fan

James Thomas Edward McDonnell

Robert G Walmsley

Gideon Amir

Charles J Bruce

Ramon Vega

Omer Barkol

Mani Fischer

Eric Hoarau

Giordano Bruno Beretta

Henry W Sang, Jr

Sagi Schein

Melanie M Gottwals

Pol Fornos

Luis Garcia Garcia

Guy De Warrenne Bruce Adams

John Ludd Recker

Ram Dagan

Rodolfo Jodra

Shivaun Albright

John J Moore

Andrew Mackenzie

Virend K Somers

Melvyn Smith

Lluis Abello

Alipio Caban

Manuel Gonzalez

Gidi Amir

According to an example, an apparatus may include an agent delivery device to selectively deliver an agent onto a layer of build material particles. The apparatus may also include an energy source to apply energy onto the layer of build material particles to selectively fuse the build material particles in the layer based upon the locations at which the agent was delivered and a chamber formed of a plurality of walls, in which the agent delivery device and the energy source are housed inside the chamber. The apparatus may further include a vapor source to supply vapor into the chamber to wet the build material particles inside the chamber.

Build matertal particle fusing in a chamber containing vapor

A device comprising a material distributor and a fluid dispenser. The material distributor to distribute a build material, layer-by-layer, to form a 3D object. A fluid dispenser to selectively dispense in at least some of the respective layers a first fluid agent and a second fluid agent. The first fluid agent, comprising a first color, is to be dispensed at first selectable voxel locations to affect a first material property of a first portion of the 3D object. The second fluid agent, comprising a second color, is to be dispensed at second selectable voxel locations to at least partially disguise the first color of the first portion of the 3D object.

Disguising color in 3D object formation

An example system includes an object and a support frame supporting the object. The support frame constrains movement of the object relative to the support frame, and the support frame includes at least one of a cage or a shackle to non-rigidly constrain movement of at least a part of the object.

Product framing

An object ID-centered workflow method utilizes an object identifier (ID) associated with an object. Forensic identification of serialization elements of the object ID enables access to a registry of workflows.

Object ID-centered workflow

A method comprises moving a robotic structure to a first pose such that an end-effector of the robotic structure has an absolute position comprising an absolute location and absolute orientation. The method comprises providing a calibration artefact on the end-effector. The method comprises determining at least three planes coinciding with at least three respective surface planes of the calibration artefact, by measuring absolute locations of a plurality of points on the calibration artefact. The method comprises determining the absolute location and absolute orientation of the end-effector, when the robotic structure is in the position based on the determined at least three planes. The method also comprises calibrating the first pose of the robotic structure using the determined absolute location and absolute orientation of the end-effector.

Robotic structure calibrations

In an example, a method is described that includes generating a model for fabricating an item via an additive manufacturing process. The model includes a first region defining the item and a second region defining a sacrificial artifact whose presence disguises a physical characteristic of the item. The item and the sacrificial artifact are then fabricated in a common build batch via the additive manufacturing process.

Additive manufacturing process to disguise physical characteristics of item

In an example, a method is described that includes generating a model for fabricating an object via an additive manufacturing process. The model includes a first region defining the object and a second region defining a sacrificial artifact. The object is fabricated via the additive manufacturing process, using a fusing printing fluid. The sacrificial artifact is fabricated simultaneously with fabricating the object, via the additive manufacturing process, using a non-fusing printing fluid.

Additive manufacturing process using fusing and non-fusing printing fluids

An example system includes a standardized production portion to provide a set of standardized components and a customized production portion to provide a set of customized components. Each standardized component of the set of standardized components is substantially identical to one another, and each customized component of the set of customized components is selected from at least two different custom options. Each customized component includes at least a first portion of a customized part and an associated descriptor. Each customized component is physically coupled to a standardized component.

Customized production

A surface enhanced luminescence (SEL) sensor may include a substrate and nano fingers extending from the substrate. In one implementation, the nano fingers may be arranged in a cluster of at least three nano fingers extending from the substrate. The nano fingers of the cluster having different geometries so as to bend into a closed state such that each of the nano fingers of the cluster are linked to one another.

Surface enhanced luminescence sensor nano finger

Build material particle fusing in a chamber containing vapor

According to examples, an apparatus may include a printhead assembly containing a housing supporting a printhead. The printhead may have nozzles that are to fire droplets of a functional agent onto a layer of build material particles along respective flight paths to form sections of a 3D object from the build material particles, an array of light emission devices to direct respective light beams in the respective flight paths, and an array of photon detectors to detect respective light beams directed from a light source of the array of light emission devices, the light emission devices and the photon detectors being supported on the housing. The apparatus may also include a controller to determine whether any of the nozzles is operating improperly based upon whether the photon detectors detected the light beams and to output an instruction regarding an improperly operating nozzle in response to a determination that the nozzle is operating improperly.

Printhead assembly with light emission devices and photon detectors

According to an example, an apparatus may include a memory that may store instructions to cause a processor to generate, for each part to be fabricated in a build envelope of a 3D fabricating device, first level descriptions and second level descriptions for the part. The processor may determine, using the first level descriptions, whether there is an arrangement that results in the parts jointly fitting within the build envelope while providing certain thermal decoupling spaces between the parts. In response to a determination that the arrangement using the first level descriptions for the parts has not been determined, the processor may determine, using the second level descriptions, whether there is an arrangement that results in the parts jointly fitting within the build envelope while providing the certain thermal decoupling spaces.

Arrangement determination for 3D fabricated parts

A method is disclosed. The method comprises defining a region of interest on a three-dimensional model of an object. The method may comprise capturing an image of an object manufactured according to the three-dimensional model. The method may comprise determining, using a processor, a position and orientation of the three-dimensional model with respect to the object in the captured image. The method may comprise locating the region of interest on the manufactured object. A portion of the manufactured object within the region of interest may comprise an identifiable feature. An apparatus and a machine-readable medium are also disclosed.

Locating a region of interest on an object

A display device includes a non e-paper portion to display a first pattern element and a passive e-paper display portion to display a second pattern element juxtaposed relative to the first pattern element.

Display device

In an example of a 3D printing method, build material particles are applied to form a layer. Each build material particle includes a metal core and a metal oxide outer shell. The layer is patterned by selectively applying a reactive chemical on at least a portion of the layer to initiate a redox reaction with the metal oxide outer shells of the build material particles in contact with the reactive chemical, which reduces the metal oxide outer shells of the build material particles in contact with the reactive chemical and exposes the metal cores of the build material particles in contact with the reactive chemical. The patterned layer is exposed to rapid thermal processing to sinter the exposed metal cores to form a part layer. Any intact build material particles remain unsintered.

Three-dimensional (3D) printing

Growing community of inventors

Fort Collins, CO, United States of America

Steven J Simske