Variants fan duct for Eclips3D. The original fan duct directs air only to a small part of the print area, and so does not always provide enough cooling to parts of the object which are on the other side of the print head. This variant improves the situation a bit. It is also fractionally shorter, which makes it easier to see the object as it is being printed.
Note that the picture shows a prototype. The nut and bolt are not part of the final design. A blender file with the pieces that makes this up and some variations on them is included in the files.