Ender 3 - noctua fan stepdown case
thingiverse
I've changed most of fans in my Ender3 s1 to noctua. Since they need a stepdown I've designed this case mounted on a 3printer. Rails are a bit of a thight fit, but at least they don't move when you carry your printer. To mount the board to the case ive used m2*5*3.2 mm threded inserts and screws.
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