Stratasys, Inc.

Evolve Additive Solutions, Inc.

James W Comb

William J Swanson

J Samuel Batchelder

Steven A Chillscyzn

William J Hanson

J Randolph Sanders

Michael W Bacus

Robert L Skubic

Paul J Leavitt

John Samuel Batchelder

Kevin C Johnson

William R Priedeman, Jr

Timothy A Hjelsand

Michael D Bosveld

David G Bocek

Max Peters

Edward Rapoport

Joseph E Labossiere

Jerome Kent Grudem, Jr

S Scott Crump

Robert L Zinniel

Benjamin N Dunn

Zeiter Farah

Troy Marshall Coolidge

Robert E Styer

Arun Chowdry

Jeffrey L Crotty

Jonathan B Hedlund

Chris Counts

J Samuel Batchedler

Steven M Brose

Hans P Erickson

Jason P Wanzek

Zeiter S Farah

Dana R Hansen

Jr Jerome K Grudem

A method for making a three-dimensional (3D) part with an electrostatographic based additive manufacturing system includes developing a first layer of a powder material using at least one electrostatographic engine, supporting the developed first layer on a transfer medium, adjusting a first layer thermal profile of the developed first layer with a first thermal flux device, adding thermal energy to a part thermal profile that includes a bonding region of previously accumulated layers of the 3D part, transfusing the developed first layer on the bonding region of the previously accumulated layers of the 3D part, and removing thermal energy from the part thermal profile. A transfusion temperature at a start of the transfusing step can be equal to or greater than a transfusion threshold temperature, where the transfusion temperature is an average of the first layer thermal profile and the part thermal profile in the bonding region.

Thermal partitioning in an electrostatographic additive manufacturing system

An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.

Layer transfusion for heat capacitor belt for additive manufacturing

A print head assembly that includes a print head carriage and multiple, replaceable print heads that are configured to be removably retained in receptacles of the print head carriage. The print heads each include a cartridge assembly and a liquefier pump assembly retained by the cartridge assembly.

Print head assembly and print head for use in fused deposition modeling system

Layer transfusion with transfixing for additive manufacturing

Layer transfusion for additive manufacturing

A method and system for printing a three-dimensional part, which includes producing a developed layer of a part material with one or more electrophotography engines of an additive manufacturing system, transferring the developed layer from the one or more electrophotography engines to a transfer assembly of the additive manufacturing system sintering the developed layer at the transfer assembly to produce a sintered contiguous film, cooling the sintered contiguous film down to a transfer temperature, and pressing the cooled sintered contiguous film into contact with an intermediate build surface of the three-dimensional part with a low applied pressure.

Electrophotography-based additive manufacturing with pre-sintering

A method and system for printing a three-dimensional part, which includes printing a plurality of successive layers of the three-dimensional part with the additive manufacturing system based on bitslices in a bitslice stack, measuring surface heights of the successive layers after each of the successive layers are printed, determining differences between the measured surface heights and predicted stack heights of the bitslices, identifying one or more topographical error regions based on the determined differences, and modifying the bitslice stack to compensate for the one or more topographical error regions.

Additive manufacturing with virtual planarization control

A platen assembly for use in an additive manufacturing system, which includes a platen plate that is preferably secured to a gantry mechanism of the additive manufacturing system, and having a top surface, and one or more magnets secured to the platen plate and configured to generate one or more magnetic fields at the top surface of the platen plate. The platen gantry is configured to magnetically couple interchangeable and replaceable build sheets to the top surface of the platen plate due to the one or more generated magnetic fields, and where the magnetically-coupled build sheets are configured to receive the printed layers from the printing mechanism.

Magnetic platen assembly for additive manufacturing system

Layer transfusion with rotatable belt for additive manufacturing

A head tool changer for use with a deposition-based digital manufacturing system, the head tool changer comprising a tooling unit configured to retain a deposition head, a grip unit configured to engage with tooling unit and to relay electrical power to the tooling unit, and a master unit operably mounted to a gantry and configured to engage with the tooling unit and to relay electrical power to the tooling unit.

Head tool changer for use with deposition-based digital manufacturing systems

A gantry assembly for use in an additive manufacturing system, the gantry assembly comprising a first bearing shaft, a carriage slidably engaged with the first bearing shaft, and a second bearing shaft operably supported by the carriage, the second linear bearing extending along a second axis. The gantry assembly also comprises a tool-head mount slidably engaged with the second linear bearing, a drive belt secured to the tool-head mount, a first motor having a first drive shaft engaged with the drive belt, and a second motor having a second drive shaft engaged with the drive belt.

Gantry assembly for use in additive manufacturing system

Layer transfusion with part heating for additive manufacturing

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Hamel, MN, United States of America

James W Comb