The file 'Customizable Fan To Duct Adapter Reducer/Expander Exhaust Shroud 3D Printer Model' is (stl,scad) file type, size is 2.2MB.
Customizable shroud/adapter for connecting any size square/box fan to any size round duct. Optional center cone (it's hollow to save filament) is meant to reduce turbulence around the fan motor for more efficient airflow. Center cone and outer shroud cone may use either conic, tangent ogive, or a percentage of each. Base plate is extensible in any direction. Look forward to seeing your customized versions.
Useful for venting 3D printer exhaust fumes, etc.
You may find the following design useful for venting the fumes out of your window: https://www.thingiverse.com/thing:4411888
Designed from scratch using OpenSCAD, but inspired by William Fecke's "Antminer Fan Shroud 3 Inch Exhaust" https://www.thingiverse.com/thing:1612294, and Paul Silva's "120mm Fan to 4" Dryer Duct" https://www.thingiverse.com/thing:2630405
120mm-to-3inch-shroud.stl | 1.6MB | |
120mm-to-3inch-simple.stl | 1.3MB | |
120mm-to-4inch-shroud.stl | 4.0MB | |
120mm-to-4inch-simple.stl | 1.3MB | |
120mm-to-4inch-with-extensions-example.stl | 4.0MB | |
120mm-to-8inch-shroud.stl | 4.1MB | |
80mm-to-3inch-shroud.stl | 1.6MB | |
fan-shroud.scad | 9.3KB |