120mm Case Fan to 4"ID Exhaust
thingiverse
Friction-fit 120mm case fan housing / shroud exhausting to 4" ID cylinder for exhausting offgas from production. Utilized a surplus Cooler Master 120mm case fan with red LED from https://www.amazon.com/120x120x25mm-A12025-20RB-3BN-F1-DF1202512RFUN-R4-L2R-20AC-GP-SickFlow120/dp/B07DZ5R1QY Hack-spliced a 12V DC adapter, black to ground and red/tacometer combined to hot. https://www.amazon.com/gp/product/B00FEOB4EI/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1 Works with standard 4" diameter ducting. This thing was made with Tinkercad.
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