40mm Supportless, Directed Cooling Fan Duct for MendelMax & Prusa

thingiverse

This duct enhances the 40mm Fan Duct V3 from Ultibots, optimizing it for print-without-support ease and even cooling flow distribution across the gap width. It additionally directs airflow toward printed parts near the nozzle's end. The fan mount is borrowed from Thingiverse's item 34387, and it also serves as belt clamps. A note on 18 March 2013 mentions that hole sizes are tapped for M3 bolts; if a nut is preferred, drill accordingly. On 04 June 2013, a v2 stl was added with 5mm longer exit slots while maintaining the same total area. Lastly, on 30 June 2013, stp files for each version were included. Please share your experience with the modified version!