Systems for additively manufacturing composite parts

A system for additively manufacturing a composite part, the system comprising:

• a delivery guide movable relative to a surface and configured to deposit at least a segment of a continuous flexible line along a print path, wherein the print path is stationary relative to the surface;
• a vessel, separate from the delivery guide, wherein the vessel comprises an inlet and an outlet, and wherein the vessel is configured to hold a volume of a liquid photopolymer resin, to receive a non-resin component through the inlet, to apply a quantity of the liquid photopolymer resin to the non-resin component to create the continuous flexible line, and to discharge the continuous flexible line through the outlet;
• a feed mechanism, configured to pull the non-resin component through the vessel by engaging the continuous flexible line, discharged through the outlet of the vessel, and further configured to push the continuous flexible line through the delivery guide, wherein the continuous flexible line comprises the non-resin component and further comprises a photopolymer-resin component that comprises at least some of the liquid photopolymer resin applied to the non-resin component in the vessel, wherein the feed mechanism comprises:
• opposing rollers, configured to engage opposite sides of the continuous flexible line and to selectively rotate to push the continuous flexible line through the delivery guide;
• a scraper in contact with at least one of the opposing rollers to remove residue of the photopolymer-resin component, produced when the opposing rollers engage the continuous flexible line as the opposing rollers rotate to selectively translate the continuous flexible line to push the continuous flexible line through the delivery guide;
• and
• a collection reservoir, configured to collect the residue of the photopolymer-resin component removed by the scraper;
• and
• a source of curing energy, wherein the source is configured to deliver the curing energy at least to a portion of the segment of the continuous flexible line after the segment of the continuous flexible line exits the delivery guide.