120mm fan to window duct kit (for 3D printer ventilation)

Adapts a 120mm fan to a pro aire window duct kit (5 14/16in OD) Used in a 3D printer ventilation setup
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updated August 21, 2025

Description

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This model is a part of a ventilation setup I built for my printer. 

I wanted an easy way to vent asa and abs fumes outdoors, and this is what I came up with. It adapts a 120mm fan to this pro aire window ac exhaust kit I purchased from menards. I combined it with a 120mm to 4 inch duct kit, and then used 4 inch duct tubing to connect it all together. Works surprisingly well and now I need not worry about VOCs and fumes in my house.

(i'm using some legos to support it but a support bracket and outer grille are next on the list)

prints upright with no supports (PLA is probably fine but eventually will reprint in ASA for outdoor weather resistance)  
 

Model origin

The author remixed this model.

120mm Hex fan grill
by imKieva (thingiverse.com)
 

Differences of the remix compared to the original

Adds an adaptor to connect a window exhaust kit for the hex grille

License