120/140mm fan deflector (STL+OpenSCAD)

120/140mm fan deflector, with OpenSCAD source for customization.
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updated January 19, 2023

Description

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This fan duct will redirect air flow from 120mm/140mm fan at an angle. 

For example this can be used 

  1. On the back of your PC to the VRM area on your motherboard. This is required when you're using water cooling, which could reduce cooling of VRM area.
  2. To redirect air toward videocard and help cooling it's backplate which is often gets very hot from VRAM. 

Air is deflected by 60° at bottom, and 45° at the top of the fan.

You can choose version with or without teeth. Benefit of teeth is not clear. Teeth might reduce noise in some cases, but harder to print.

OpenSCAD source is also included. Please let me know if you know better implementation of path_extrude, this one might be slightly buggy in corner cases (but works fine in this case).

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