Ender 3 40mmx20mm Noctua fan + BL Touch Mount.

thingiverse

Hey! Remixed the great design by MetalGearSortof to make it work for a 40x20mm fan. Essentially just extended the housing out, and made a small cutout so that the hot end heatsink had more distance between it and the housing. Not gonna lie, model is not perfect, for one the post where the fan screws in are just a little to large and will certainty break if you try to put a bolt in them. To fix this I took a small file and just gave the screw holes of the fan a once over and with some mechanical retention (aka force) the fan fits perfectly without the use of screws (think of it as weight savings) If someone more talented than me wants to remix this model to make the screw posts perfect that would be amazing, until then this thing has been working great for me. Any questions or comments feel free to leave them! Thanks!