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Minneapolis, MN, United States

Stratasys, Ltd. is a manufacturer of 3D printers and 3D production systems for office-based rapid prototyping and direct digital manufacturing solutions. Engineers use Stratasys systems to model complex geometries in a wide range of thermoplastic materials, including: ABS, polyphenylsulfone , polycarbonate and ULTEM 9085. Stratasys manufactures in-office prototyping and direct digital manufacturing systems for automotive, aerospace, industrial, recreational, electronic, medical and consumer product OEMs. Wikipedia.


Patent
Stratasys | Date: 2015-04-27

A method for forming three-dimensional objects is disclosed. The method includes printing building material, layer by layer, to form a three dimensional object by depositing building material in layers onto a printing tray to form a three dimensional object and maintaining the uppermost layers being deposited in a flowable state by a temperature control after layers below the uppermost layers are solidified.


A liquefier assembly for use in an extrusion-based additive manufacturing system, the liquefier assembly comprising a downstream portion having a first average inner cross-sectional area, and an upstream having a second average inner cross-sectional area that is less than the first inner cross-sectional area, the upstream portion defining a shoulder configured to restrict movement of a melt meniscus of a consumable material.


A liquefier assembly for use in an extrusion-based additive manufacturing system, and a method for building a three-dimensional model with the extrusion-based additive manufacturing system, where the liquefier assembly includes a liquefier tube having multiple, independently heatable zones along a longitudinal length of the liquefier tube.


A method for the preparation of a composite material having a pre-designed structure and properties according to the intended use of said composite material is provided. The method includes generating data for dispensing two or more different interface materials having different properties into at least two different phases; selectively depositing said two or more different interface materials having different properties from two or more corresponding dispensers to form layers according to the data generated, each interface material being dispensed from a different dispenser to form at least two different phases of interface materials; and curing or solidifying the dispensed layers to obtain a composite material with pre-designed structure and properties.


An additive manufacturing system for printing three-dimensional parts, the system comprising a heatable chamber with a port, a print foundation, a print head configured to print a three-dimensional part onto the print foundation in a layer-by-layer manner along a printing axis, and a drive mechanism configured to index the print foundation along the printing axis such that, while the print head prints the three-dimensional part, the print foundation and at least a portion of the three-dimensional part pass through the port and out of the heated chamber.

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