About this 3D model

This fan duct applies cooling air to the barrel and the part from a 40mmx 40mm axial fan mounted to the end. The pictures represent the original one, that version is now removed from the download list. v1.1 enlarges the lower nozzle openings and adds a vane that helps direct air flow to those lower nozzles. v1.3 removes the split in the nozzle tomore quickly harden the plastic at the hot end nozzle, and the inside diverter was lengthened to ensure good air flow to the lower nozzle. I recommend v1.3 the most, the old version was left in case it was desirable.