3d Systems, Inc.

Lung Biotechnology Pbc

Turner, Peter Scott

Tummala, Praveen

Johnson, Martin Alan

Peter Scott Turner

David Sabo

Seth Astle

Charles W Hull

Pingyong Xu

John S Stockwell

Martin Johnson

Patrick Dunne

Praveen Tummala

Gregory Hurst

Kyle Wardlow

Martin Alan Johnson

A method of manufacturing a three-dimensional (3D) article includes operating a print engine to fabricate a composite structure including the 3D article coupled to a support structure, removing the composite structure from the fluid tank, and peeling the inside surface of the sheath away from the outer surface of the article, peeling progressively breaks the plurality of strands. The support structure includes a conformal sheath having an inside surface that follows the outer surface of the 3D article with a gap between the inside surface of the sheath and the outer surface of the article, and a plurality of strands that span the gap and individually have opposed ends that are coupled to the inside surface of the sheath and the outer surface of the article to maintain the gap, the gap filled with the photocurable liquid ink.

Method for manufacturing low modulus articles

A three-dimensional (3D) printing system for manufacturing a 3D article includes a resin vessel, a build tray, a movement mechanism, a light engine, a housing, a gas handling system, and a controller. The resin vessel includes a transparent sheet on a lower side. The housing defines two chambers including an upper chamber and a lower chamber. The upper chamber is in fluidic communication with the resin contained by the resin vessel. The lower chamber is in fluid communication with a lower surface of the transparent sheet. The controller is configured to (a) operate the gas handling system to reduce and control a partial pressure of oxygen in the upper and lower chambers, (b) operate the movement mechanism and the light engine to form the 3D article in a layer-by-layer manner.

Manufacturing system and method for high performance customized articles

A system for manufacturing a three-dimensional article includes a resin vessel, a vertical movement mechanism, and a light engine. The resin vessel includes a lower opening closed by a transparent sheet. The vertical movement mechanism is for positioning a support tray which supports the three-dimensional article. The light engine is disposed below the transparent sheet and is configured to selectively harden layers of resin over a build plane above the transparent sheet. The light engine includes a light bar coupled to a lateral movement mechanism. The light bar includes an array of light emitting devices and a device for impinging upon the transparent sheet. The impingement maintains a proper operating distance H between the transparent sheet and the build plane.

High productivity three-dimensional printer

There is provided an additive manufacturing system comprising a vertical stage (also known as a z-stage) that moves the object being created along an axis of motion that is not perpendicular to the image plane (non-parallel to the z-axis of the image plane). By moving the build platform, upon which the additively manufactured object is being supported, along a predetermined axis of motion, such as one adapted to the dominant axis of the object design, the additive manufacturing system is capable of making larger objects, shortening build times, improving part resolution, and/or reducing the volume of photocurable material needed, among other benefits.

Additive manufacturing vertical stage for moving photocured material in a non-perpendicular direction from the image plane

In one aspect, adhesives for use with a 3D printer are described herein. In some embodiments, an adhesive for use with a 3D printer comprises a first polymeric component comprising a poly(vinyl alcohol) and a second polymeric component. The poly(vinyl alcohol), in some embodiments, comprises amorphous poly(vinyl alcohol). In some embodiments, the second polymeric component comprises a water-soluble polymer. Further, in some embodiments, an adhesive described herein further comprises a solvent, a surfactant, and/or a preservative.

Adhesive for 3D printing

Growing community of inventors

Venice, CA, United States of America

Peter Scott Turner