Velux 120mm Window Fan

thingiverse

I wanted to get rid of the hot air in my printing room, so I decided to add some fans to my windows. That is my conclusion, I tried to make them fit as best as possible while still getting them mounted. They just hold down by a little chock and they are easy to remove, if you want to close your window. You will need 120mm Fans. I use "be quiet! PURE WINGS 2 high-speed"-Fans. I did get them for 8€ each. I also use an step down to regulate the fans. There are four different versions, 100m, 120mm and 125mm rectangular version and one which I specially designed to fit on the middle right as you can see in the photos. If you need asmaller or bigger version just ask me in the comments. I would love to see your makes and read your experience.