Cooling Duct - Fits Qidi Tech (and likely others)

This cooling duct works with the stock turbo fan that is included with the Qidi Tech printer (mine is an early 2016 model). The included duct was inadequate in getting quality results from various test prints (like Marvins, CtrlV, etc.), so I designed my own. I was working towards a duct that split off and routed air to both extruders, but had mixed results. I'll get back to that at some point, but for now I have this version that is for the left extruder only. I get high quality results wit