CPC B29C 64/336 (2017.08) [A61M 25/0009 (2013.01); B29C 64/118 (2017.08); B29C 64/295 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 80/00 (2014.12); A61M 2207/10 (2013.01); B29L 2031/7542 (2013.01)] | 25 Claims |
1. An additive manufacturing apparatus comprising: a heating block at least partially defining an interior volume to allow an elongate substrate to pass through the interior volume and through the heating block, wherein the heating block at least partially defines a first filament port in fluid communication with the interior volume; and a first guide sheath coupled to the heating block and extending into the first filament port from an exterior of the heating block, the first guide sheath defining a lumen in fluid communication with the interior volume, wherein the heating block at least partially defines a second filament port in fluid communication with the interior volume separate from the first filament port.
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