CraftBot Fan Duct

From an idea of Mroek (https://www.thingiverse.com/thing:1876044), I have designed this custom fan duct for CraftBot printer to replace original cooling solution. My duct is a better solution than the original, better cooling on printed piece.
Compared to that of Mroek is easier to print, it is more robust and the overall dimensions are better managed (the fan does not hit the structure).
Use this radial fan to have a good fit whit duct https://www.amazon.it/gp/product/B01N9ZMRUR/ref=oh_aui_d