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This is the easiest way to extract fumes from your room or 3d printer by simply plugging it into a USB port - no klipper configuration or custom gcode needed.

Can be printed twice and placed on each side of a 120mm fan to create a cheap inline fan using 4inch ducting, or used as a wall extractor.

LINKS TO THINGS YOU MIGHT NEED

84-108mm Clamps	To secure the ducts. Alternatively you can use duct tape
4in Flexible Ducting	The main ducting used to vent the printers outside
M3 Self Tapping Screws	2 Screws to secure the collector to the wall
1/4 in hex shank extension	You might need extra length for your driver bit to reach
Duct tape	For extending ducting or as an alternative to clamps
Printable 4in duct bracket	I designed these to easily mount the ducting to a wall
Printable 2:1 collector	I designed this to merge 2 ducts into 1
120mm fan (5v)	Can plug into the usb port of a 3d printer for easy extraction
Fan extension cable	So you can move the fan further away from the USB port

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4 inch duct to 120mm fan adapter (inline or wall outlet)

In collections (3 public and 4 private)

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K1C

Filtration and 4 inch (100mm) ducting