Alfawise U30 air duct for two fans
thingiverse
An air duct for using two Noctua fans, as they are 12V and the power input is 24, 12+12 in series equals 24 The weight, according to calculations, should be the same if not less from the original steel holder. A drill tap was used for finishing the threads, all of which are M3 and you'll need some screws - M3x16 (8 pcs) and M3x20 (8 pcs). EDIT: I've added a model (191023ADF-p1-1.STL) replacing all the three fans with Noctua as the hot-end fan was annoying me. Now all is quiet. The holder plate (191010ADF-p1-2.STL) is the same.
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