Abstract: A system is disclosed for use in additively manufacturing a structure. The system may include a print head to discharge a material, and a support to move the print head during discharging to fabricate a structure. The system may also include a receiver mounted to the print head to generate a signal indicative of at least one of a shape, a size, and a location of the discharged material, and a processor in communication with the receiver and the support. The processor may be configured to generate a data cloud of the structure fabricated by the additive manufacturing system based on the signal and based on a known position of the receiver at a time of signal generation. The processor may also be configured to make a comparison of the data cloud and a virtual model of the structure during discharging, and to selectively affect discharging based on the comparison.

Abstract: A system is disclosed for use in additively manufacturing a composite structure. The system may include at least one support, and a print head operatively connected to the at least one support and configured to discharge composite material. The system may further include an auxiliary tool operatively connected to the at least one support and configured to receive the composite material discharged by the print head.

Abstract: A method is disclosed for us in additively manufacturing a three-dimensional carbon-bonded composite article. The method may include discharging from a print head a curable composition. The curable composition may include a) at least one aromatic, actinically curable component having an H/Catomic ratio of from 0.4 to 1.6, selected from the group consisting of (meth)acrylate oligomers, epoxy-functionalized compounds, oxetane-functionalized compounds and mixtures thereof; and b) at least one diluent comprising at least one actinically curable monomer. The curable composition may also include c) a reinforcement, and d) a photoinitiator. The method may further include irradiating the curable composition during the discharging to at least partially actinically cure the curable composition and form a preform of the three-dimensional carbon-bonded composite article. The method also includes pyrolyzing the preform to form the three-dimensional printed carbon-bonded composite article.

Abstract: A system is disclosed for additively manufacturing a structure. The system may have a support, and a print head operatively connected to and moveable by the support. The print head may include a first module configured to discharge a material, a second module configured to compact the material as it discharges from the first module, and a controller in communication with the second module. The controller may be configured to determine an as-discharged characteristic of the material, and to selectively adjust a force of the second module based on the as-discharged characteristic.

Abstract: A system is disclosed for additively manufacturing a composite structure. The system may include a support, and a print head connected to and moveable by the support. The print head may have an outlet configured to discharge a continuous reinforcement at least partially coated in a matrix, and a device located inside the print head and configured to at least partially coat the continuous reinforcement with the matrix. The system may also include a sensor configured to generate a signal indicative of an amount of the matrix, and a controller in communication with the sensor and the device. The controller may be configured to direct a command to the device to cause the device to advance matrix toward the continuous reinforcement during passage of the continuous reinforcement through the print head, and to selectively adjust the command based on the signal.

Abstract: A system is disclosed for additively manufacturing an object. The system may include a support, and a print head having an outlet and being connected to and moveable by the support in a normal travel direction during discharge of material from the print head. The system may also include a first device operatively connected to the print head at a trailing location relative to the normal travel direction. The first device may be configured to expose the material to a cure energy. The system may further have a second device operatively connected to the print head at a location trailing the first device relative to the travel direction. The second trailing device configured to expose the material to a cure energy.

Abstract: A method is disclosed for additively manufacturing an object. The method may include discharging a composite material from a print head to form the object. The method may also include drawing out fewer than all components of the composite material from the print head prior to discharging.

Abstract: A head is disclosed for an additive manufacturing system. The head may include a first outlet configured to discharge a composite material to form an object. The head may also include a second outlet located upstream of the first outlet and configured to discharge fewer than all components of the composite material.

Abstract: A method is disclosed for manufacturing a joint. The method may include depositing a first plurality of paths within a first layer. Each of the first plurality of paths may have a center portion, a first portion extending away from the center portion to at least partially form a first branch, and a second portion integral extending away from the center portion opposite the first portion to at least partially form a second branch. The method may further include depositing a second plurality of paths primarily within the first layer. Each of the second plurality of paths may have a center portion, and a first portion extending away from the center portion to at least partially form a third branch of the joint. The second plurality of paths may cross over and be bonded to the first plurality of paths to form spaced-apart bumps that extend into a second layer.

Abstract: A method is disclosed for manufacturing a joint. The method may include depositing a first plurality of paths within a first layer of the structure that passes through the joint in a first configuration. The method may further include applying a transformation to the first configuration to form a second configuration. The method may additionally include depositing a second plurality of paths within a second layer of the structure to at least partially overlap the first plurality of paths and pass through the joint in the second configuration.

Abstract: A method is disclosed for additively manufacturing of a joint within a structure using a composite material. The method may include depositing a first path of the composite material within a first layer at the joint. The first path may have a center portion at a center of the joint, and a first portion integral with the center portion and extending away from the center portion. The first portion may form at least part of a first branch having a first density. The center of the joint may have a second density. The first density may be greater than the second density.

Abstract: A method is disclosed for manufacturing a joint. The method may include depositing a first path of composite material within a first layer at the joint. The first path may have a center at a center of the joint, a first portion integral with the center portion and extending away from the center portion, and a second portion integral with the center and extending away from the center portion. The method may further include depositing a second path of composite material within the first layer at the joint. The second path may have a center at the center of the joint, and a first portion integral with the center of the second path and extending away from the center of the second path. The center portion of the second path may be parallel with, abut and be bonded to the center portion of the first path.

Abstract: A method is disclosed for manufacturing a joint. The method may include depositing a first plurality of paths to form a base layer of a joint in the structure. The method may also include depositing a second plurality of paths that pass through the joint. At least one of the second plurality of paths may extend away from the base layer through free space.

Abstract: A system is disclosed for additively manufacturing a composite structure. The system may include a support, and a print head connected to and moveable by the support. The print head may have a first tool center point associated with discharge of a first material, and a second tool center point associated with discharge of a second material that is a type different than the first material.

Abstract: A system is disclosed for use in additively manufacturing a structure. The system may include an additive manufacturing machine, a memory having computer-executable instructions stored thereon, and a processor. The processor may be configured to execute the computer-executable instructions to determine a plurality of tension vectors to be generated within the structure, and to generate a plan for manufacturing the structure. The plan may include tool paths that arrange continuous fibers within the structure to generate the plurality of tension vectors. The processor may also be configured to execute the computer-executable instructions to cause the additive manufacturing machine to follow the plan and manufacture the structure.

Abstract: A method is disclosed for additively manufacturing a composite structure. The method may include discharging a composite material from a print head and moving the print head during discharging to fabricate a preform from the composite material. The method may also include densifying the preform with a densifying material, and heating the preform to pyrolize the at least one of the composite material and the densifying material.

Abstract: A system is disclosed for additive manufacturing of a composite structure. The system may include a support, and a print head connected to and moveable by the support. The print head may include an outlet configured to discharge a continuous reinforcement at least partially coated in a matrix. The outlet may be moveable relative to the support. The print head may also include at least one actuator configured to cause movement of the outlet relative to the support.

Abstract: A system is disclosed for use in additively manufacturing a structure. The system may include a print head to discharge a material, and a support to move the print head during discharging to fabricate a structure. The system may also include a receiver mounted to the print head to generate a signal indicative of at least one of a shape, a size, and a location of the discharged material, and a processor in communication with the receiver and the support. The processor may be configured to generate a data cloud of the structure fabricated by the additive manufacturing system based on the signal and based on a known position of the receiver at a time of signal generation. The processor may also be configured to make a comparison of the data cloud and a virtual model of the structure during discharging, and to selectively affect discharging based on the comparison.

Abstract: A system is disclosed for use in additively manufacturing a structure. The system may include a print head configured to discharge a material, and a support connected to and configured to move the print head during discharging to fabricate a structure. The system may also include a receiver mounted to the print head and configured to generate a signal indicative of at least one of a shape, a size, and a location of the discharged material, and a processor in communication with the receiver and the support. The processor may be configured to generate a data cloud of the structure fabricated by the additive manufacturing system based on the signal and based on a known position of the receiver at a time of signal generation. The processor may also be configured to make a comparison of the data cloud and a virtual model of the structure during discharging, and to selectively affect discharging based on the comparison.

Abstract: A system for additively manufacturing a structure is disclosed. The system may include a support, and a print head operatively connected to and moveable by the support. The print head may have an outlet that is oriented at an oblique angle relative to a central axis of the print head.