Ulitmaker 2+ Left Fan Duct Replacement

Here is a fan duct that replaces the stock metal fan ducts for the Ultimaker 2+ hotend. This is a modification of an existing fan duct design. I have added directional vanes that force the air flow to conform to a more controlled pattern that directs air more efficiently towards the extrusion point of the printer head. Remodeled the mounting holes so the stock Ultimaker fans mount correctly and align perfectly.