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Yomi Air Purifier — image 1
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Yomi Air Purifier

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High flow, filters dust and particles (hepa), VOC and bad smells (activated carbon)

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Model information

License
Creative Commons — Public Domain

Video:

Fits Noctua NF-A20 5V USB pc fan

Remove the fan frame with pliers

Then remove Noctua adhesive and attach the fan mid-print with “thick double sided adhesive tape”

Add a “usb fan speed controller” to adjust and increase fan speed.

Cut hepa filters from a "Frameless hepa filter" (Google it)

Cut activated carbon filter from an “Activated carbon air filter sheet”:

 

Use the universal Yoni.gcode print file instead of slicing. Upload the gcode on an SD card and insert it in any printer. Launch the gcode from the printer interface. Adjust temperature once the print starts to fit your filament needs.

Printer requirements for the gcode: 0.6mm nozzle and at least 210x210mm buildplate

 

Airflow demo and measurement video: 


 

Slicing settings:

Insert pause at z = 44mm

Global:

layer height: 0.3mm
infill line width: 1.2mm
infill pattern: grid
infill density: 25%
infill line direction: 0°
walls: 0
bottom layers: 0
top layers: 0

Yoni 2:

walls: 1
infill pattern: rectilinear
infill density: 100%
infill/wall overlap: 90%

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