Bed Fan/Jet I created for my wife who has hot flashes due to Menopause. This blows air up under her covers and has a dial beside her to control the speed. She now gets a good night sleep. 

I used a 120mm 120v fan with speed control. The fan is attached to the main body with brass inserts (use solder gun to put inserts into plastic. You probably could used threaded screws to attach, but I haven't tested that way.

There are air conduits 200mm and 100mm; but you can size them to your needs by changing the Z Scale. The conduits just slide onto one another, no glue or permanent attachment needed.

Materials:

• 120mm Computer Fan with AC Plug, Variable Speed Axial Fan Muffin Fan with Controller 120V ([https://a.co/d/dbRbI0c](https://a.co/d/dbRbI0c))
• 10FT DC Power Extension Cable,5.5mm x 2.1mm ([https://a.co/d/7370FVL](https://a.co/d/7370FVL))
• (4) M5 Threaded Inserts ([https://a.co/d/eWo8oui](https://a.co/d/eWo8oui))
• (4) M5 Screws ([https://a.co/d/hptlcDh](https://a.co/d/hptlcDh))
• Variable Temp Digital Soldering Iron ([https://a.co/d/dvK2c8X](https://a.co/d/dvK2c8X))