Window duct kit for 3" or 4" hoses
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With the seasons changing I needed a better way to get my 3D printer fumes (FDM) out the window.
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Updated at source:
Model information
- Source
- Printables
- Category
- Accessories
- License
- Creative Commons — Attribution
Description
Updated Oct 19, 2026
With the seasons changing (Winter here in the northern hemisphere, and Summer in the southern) I needed a better way to get my 3D printer fumes (FDM) out the window. Since I used standard 4" heat resistant ducting I had a simple vent out the window. However that required the window to be open a full 4" plus, so I used FreeCAD to design a version that is thinner and allows for closing of a window most of the way.
The ducting I have uses a left-hand twist, so I created 4" and 3" versions that match and screw on to the different sizes for decently strong connections.
The 4" size took about 6 ½ hours to print on my Neptune 4+ at 0.28 layer height, and seems to be working well so far.
Updates
Update Oct 19, 2026
created versions that are shifted to the side instead of centered. Should make it much easier for people with deeper windowsills to place and close the window as much as possible.