Better fan duct for Electron3d Prusa i3 printer

youmagine

Edited to add an improved version (after some tests) + a variant with built-in support for people stuck with Cura. If you got burned by the 3dprintersonlinestore fake sale and bought one of these, the fan-duct-flavour-of-the-week they provide is usually pretty subpar: far away from the nozzle, blowing from one direction so air might not reach the far side of the print. Print Instructions You'll need support for the bracket. I printed mine out of PLA, 190 degrees, 60% infill (not much of it), 0.8mm wall thickness (to match the model), 50mm/s, with support ("touching buildplate" in Cura). I guess Colorfabb XT or ABS might be more advisable as they take heat better, but I don't have any ABS and XT is really expensive, so I just experimented... anyway, the thing has been in use for hours without a problem. As a side note, cura's support structures are terrible, maybe a better slicer would be a good idea (or one could separate the bracket from the duct, devise a way to clip them together and print them separately...)