Abstract: An article of manufacture is disclosed that comprises an infill made from linear segments of filament, such as but not limited to continuous carbon fiber-reinforced thermoplastic filament. Approaches to tool path generation are addressed in which material runs of filament are applied that distribute where cuts, beginning, or ends of segments occur or points where two ends of segments are fused or the like to preserve filament continuity by reducing the number of short segments. Aspects of one approach include identifying long edges and eliminating short edges which acute angles with long edges and utilizing a clipping outline as part of the process of determining start and end points of material runs.

Abstract: An article of manufacture is disclosed that includes an infill generated utilizing three dimensional (3D) printing. Infill is generated utilizing segments of filament, such as, but not limited to continuous carbon fiber-reinforced thermoplastic filament. Other materials may also be suitably employed. Approaches to tool path generation which accomplish the 3D printing desired are addressed in which material runs of filament are applied that distribute where cuts, beginning, or ends of segments occur or points where ends of segments are anchored to the article to form the desired infill. Aspects of one approach include first generating a meta tool path for the infill and then adapting that tool path to an actual infill tool path by pruning any segments in the meta tool path extending outside the perimeter of the article and identifying anchor points to the article from observed intersections of the meta tool path and said perimeter.

Abstract: An article of manufacture is disclosed that comprises an infill made from linear segments of filament, such as but not limited to continuous carbon fiber-reinforced thermoplastic filament. Feathering approaches are addressed to generate segments of filament in various geometries that distribute where cuts or ends of segments occur or points where two ends of segments are fused or the like to avoid overlap. Aspects of one approach include identifying long edges and eliminating short edges which present acute angles.

Abstract: An article of manufacture is disclosed that includes an infill generated utilizing three dimensional (3D) printing. Infill is generated utilizing segments of filament, such as, but not limited to continuous carbon fiber-reinforced thermoplastic filament. Other materials may also be suitably employed. Approaches to tool path generation which accomplish the 3D printing desired are addressed in which material runs of filament are applied that distribute where cuts, beginning, or ends of segments occur or points where ends of segments are anchored to the article to form the desired infill. Aspects of one approach include first generating a meta tool path for the infill and then adapting that tool path to an actual infill tool path by pruning any segments in the meta tool path extending outside the perimeter of the article and identifying anchor points to the article from observed intersections of the meta tool path and said perimeter.

Abstract: A method and apparatus for additive manufacturing wherein a fiber composite filament having an arbitrarily shaped cross section is softened and then flattened to tape-like form factor for incorporation into a part that is being additively manufactured.

Abstract: The present disclosure provides methods for printing a three-dimensional (3D) object, comprising processing a computer model of the 3D object to generate a strength or stress profile of the computer model. Next at least (i) the strength or stress profile from processing the computer model and (ii) a topology of the 3D object may be used to generate a tool path for printing the 3D object. Printing of the 3D object may be simulated using the tool path to yield a simulated 3D object. The simulated 3D object may be analyzed to determine whether the simulated 3D object meets a threshold. If the simulated 3D object meets the threshold, printing instructions comprising the tool path may be generated for use by a 3D printer to print the 3D object.

Abstract: An article of manufacture is disclosed that comprises an infill made from linear segments of filament, such as but not limited to continuous carbon fiber-reinforced thermoplastic filament. Approaches to tool path generation are addressed in which material runs of filament are applied that distribute where cuts, beginning, or ends of segments occur or points where two ends of segments are fused or the like to preserve filament continuity by reducing the number of short segments. Aspects of one approach include identifying long edges and eliminating short edges which acute angles with long edges and utilizing a clipping outline as part of the process of determining start and end points of material runs.

Abstract: An article of manufacture is disclosed that comprises an infill made from linear segments of filament, such as but not limited to continuous carbon fiber-reinforced thermoplastic filament. Feathering approaches are addressed to generate segments of filament in various geometries that distribute where cuts or ends of segments occur or points where two ends of segments are fused or the like to avoid overlap. Aspects of one approach include identifying long edges and eliminating short edges which present acute angles.

Abstract: A method and apparatus for additive manufacturing wherein a fiber composite filament having an arbitrarily shaped cross section is softened and then flattened to tape-like form factor for incorporation into a part that is being additively manufactured.

Abstract: A method and apparatus for additive manufacturing wherein a fiber composite filament having an arbitrarily shaped cross section is softened and then flattened to tape-like form factor for incorporation into a part that is being additively manufactured.

Abstract: A method and apparatus for additive manufacturing wherein a fiber composite filament having an arbitrarily shaped cross section is softened and then flattened to tape-like form factor for incorporation into a part that is being additively manufactured.