Hewlett-packard Development Company, L.P.

Peridot Print LLC

Douglas Pederson

David A Champion

Matthew David Smith

Vladek P Kasperchik

Sterling Chaffins

Kevin P Dekam

Andrew L Van Brocklin

William James Allen

Donald W Schulte

Kristopher J Erickson

Terry E McMahon

Greg Scott Long

Thomas A Saksa

Jarrid Wittkopf

Robert Ionescu

David Soriano

Johnathon Holroyd

Samrin Sing

Jami Ryan Barone

Nicola Baldo

M Anthony Lewis

Steve Ringwald

Matthew Baker

In an example, an apparatus includes processing circuitry comprising a model assessment module to identify an indication of a conductive element within object model data representing an object to be printed and a print instruction module to generate print instructions to generate the object. The print instructions may include an instruction to print conductive agent to form the conductive element and an instruction to print a fusing agent comprising an instruction to reduce an amount of fusing agent to be printed in a region of the conductive element compared to at least one other region of the object.

Printing conductive elements

A three-dimensional (3D) object printing kit includes a polymeric material; a fusing agent including at least 5 vol % of a polar solvent; and a detailing agent. The detailing agent includes a non-polar, hydrophobic substance selected from the group consisting of a non-polar, hydrophobic liquid in its liquid state at a temperature ranging from about −80° C. to about 40° C., and a non-polar, hydrophobic wax having a melting temperature less than 120° C.

Three-dimensional printing

According to examples, an apparatus may include an agent delivery device to deliver a coalescing agent to selected locations of a build material layer and a plurality of microwave energy emitters, each of the microwave energy emitters including a tip to generate a focused microwave energy field onto a respective area near the tip, in which the tip is to be positioned to place a portion of the build material layer within the focused microwave energy field. The apparatus may also include a controller that may control the microwave energy emitters to direct microwave energy onto the build material layer.

Microwave energy emitters with tips

In one example in accordance with the present disclosure, a system is described. The system includes at least one directional antenna to 1) emit energy waves towards a mass in which an object is disposed and 2) receive reflected signals from a resonator disposed on the object as the mass is moved relative to the directional antenna. The system also includes a controller to, based on received reflected signals, determine a pose of the object within the mass.

Resonator-based object pose determination

In example implementations, a powder level sensor is provided. The powder level sensor includes a capacitive sensor, a processor, and a cleaning mechanism. The processor is communicatively coupled to the capacitive sensor. The processor interprets a measurement of the capacitive sensor to detect a layer of residual build material on a surface of the powder level sensor. The cleaning mechanism may be communicatively coupled to the processor. The processor activates the cleaning mechanism to remove the layer of residual build material on the surface of the powder level sensor.

Cleaning mechanisms for build material level sensors

A system and method for additive manufacturing (AM) including forming a product via AM, placing a resonator adjacent the product as the product is being formed in the AM, and determining a property of the product. The resonator operates over a microwave frequency spectrum and emanates electromagnetic energy.

Microwave sensing in additive manufacturing

In an example of a method for three-dimensional (3D) printing, a polymeric or polymeric composite build material is applied. A dielectric agent is selectively applied on at least a portion of the polymeric or polymeric composite build material. The dielectric agent includes a dielectric material having an effective relative permittivity (&#x3b5;) value ranging from 1.1 to about 10,000. A fusing agent is selectively applied on the at least the portion of the polymeric or polymeric composite build material, and the polymeric or polymeric composite build material is exposed to radiation to fuse the at least the portion of the polymeric or polymeric composite build material to form a region of a layer of a 3D part. The region exhibits a dielectric property, a piezoelectric property, or a combination thereof.

A method of indexing a data stream is disclosed. The method includes initiating the data stream in the video conference, recording the data stream, indexing the data stream by generating a transcript of the recorded data stream, linking the transcript with a video portion of the data stream and storing the indexed data stream onto a data storage medium.

Indexing a data stream

A method of sending video data over a network is disclosed. The method includes initiating a video data stream between a first site and a second site over the network, sending compressed video content from the first site to the second site, decompressing the video content at the first site, decompressing the video content at the second site and synchronizing the decompressed video content at the first and second site whereby the video data stream can be controlled by either the first or second site.

Sending video data over a network

A method of automatically calibrating a video conference environment is disclosed. In an embodiment, the method includes initiating a calibration sequence in the video conferencing system, routing a test signal through the audio and video components of the video conferencing system, measuring a time delay associated with the test signal and utilizing the time delay to calibrate subsequent audio and video signal transmissions by the video conferencing system.

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Corvallis, OR, United States of America

Douglas Pederson