Xiaomi Mi Air Purifier 2S replacement fans

Problem

Turns out that tilting your Xiaomi Mi Air Purifier 2S while running is a bad idea, as it broke a few fan blades.

The purifier has 2 fans, mounted concentrically on the same motor. Spares are ~26 EUR each on Aliexpress, plus shipping … doesn't make much sense, whole machine was ~100 EUR new. So, let's print replacements !

Print settings

You want this in PETG or ABS, sturdy and printed as symmetrical as possible.

• 4-5 perimeters
• 20-40% infill (choose one of the symmetric ones, like triangles)
• scattered seam (you don't want any imbalance)
• place both fans mounting side up
• no supports