This is as remix of the N2 fan duct, which provides a lot better part cooling if you are using your N2 dual-extruder machine as a single-extruder. It gives better print quality when used for high-speed and small-object PLA printing, where you want as much cooling as possible, because it delivers all of the right-side fan output to the part, instead of wasting 3/4 of it on cooling an unused extruder.
By moving one connector on the N2 print head, you can also program the fan speed in your slicer: viewtopic.php?f=4&t=2863
Topics around mechanical design, controller and electronics. Mods & hacks welcome.
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