A head is disclosed for use with an additive manufacturing system. The head may include a matrix reservoir, and a plurality of nozzles simultaneously fluidly connected to the matrix reservoir. The head may also include at least one hinge connecting the plurality of nozzles.

A print head is disclosed for use with an additive manufacturing system. The print head may include a matrix reservoir, and a nozzle base connected to an end of the matrix reservoir. The nozzle base may have a plurality of attachment features formed within an exposed surface. The print head may further include a plurality of available dies separately connectable to the nozzle base via the plurality of attachment features. Attachment of the plurality of available dies to the nozzle base may establish fluid communication with the matrix reservoir.

A matrix supply is disclosed for use with an additive manufacturing system. The matrix supply may include a matrix chamber configured to fluidly communicate a liquid matrix with a print head of the additive manufacturing system. The matrix supply may also include a supply conduit fluidly connected to the matrix chamber, a valve disposed within the supply conduit, and an inlet configured to pass a continuous reinforcement through the matrix chamber to the print head of the additive manufacturing system.

A method and apparatus is disclosed for additive manufacturing and three-dimensional printing, and specifically for extruding tubular objects. A print head extrudes a curable material into a tubular object, while simultaneously curing the tubular object and utilizing the interior of the cured portion of the tubular object for stabilizing and propelling the print head.

Composite fibers created by a process including vertically texturizing and impregnating resin into the fibers at controlled viscosity results in stronger fibers in which virtually no microbubbles are trapped resulting in improved tensile strength for use in reinforcing concrete and other materials.

Composite fibers created by a process including vertically texturizing and impregnating resin into the fibers at controlled viscosity results in stronger fibers in which virtually no microbubbles are trapped resulting in improved tensile strength for use in reinforcing concrete and other materials.

A system for additively manufacturing a composite part comprises a delivery assembly, a feed mechanism, and a source of curing energy. The delivery assembly comprises a delivery guide movable relative to a surface and is configured to deposit a continuous flexible line along a print path. The delivery assembly further comprises a first inlet, configured to receive a non-resin component, and a second inlet, configured to receive a photopolymer resin. The delivery assembly applies the photopolymer resin to the non-resin component. The feed mechanism pushes the continuous flexible line out of the delivery guide. The source of the curing energy delivers the curing energy to a portion of the continuous flexible line after it exits the delivery guide.

Composite fibers created by a process including vertically texturizing and impregnating resin into the fibers at controlled viscosity results in stronger fibers in which virtually no microbubbles are trapped resulting in improved tensile strength for use in reinforcing concrete and other materials.

A head is disclosed for an additive manufacturing system. The head may include a nozzle configured to discharge a matrix reinforced with a fiber, and a plurality of light sources at least partially surrounding the nozzle. The plurality of light sources may be configured to enhance curing of the matrix. At least two of the plurality of light sources are configured to generate light within different spectrums.

A head is disclosed for use with an additive manufacturing system. The head may include a matrix reservoir, a first nozzle tip, and a second nozzle tip. The head may also include a tip changer mechanically connected between the first nozzle tip, the second nozzle tip, and the matrix reservoir.