These mushroom vents are shaped in a  way that the air flowing along the cabin top creates a vacuum and draws air out of the cabin. They are very nice with a bug screen and everything, but I wanted to take them one step further. I want fans. This way we don't have to wait for a breeze to suck the stifling air out, we can just open them and turn on the fans.

This is a simple enough thing until the questions of how can they be opened if a fan is in the way and  how can the cases be made? from what?  Over time I devised a couple of nice designs made from oak. One would have been ok to make, but 6?! As you might have thought, I put it off. Then we bought a 2" x 2" length of oak board so I could route it out for the 6" computer fans, and make it all fit and look nice. The wood ended up getting used for something else.

Now that time is running out, I started feeling pressed to get them done. They would be a lot of work and I knew it. Gena went around and used plastic garden edging outside of the plastic frames they included with the vents, and started hinting around. Then one fine day we were wandering through the Rona store looking for whatever we could use to make into whatever (we do that a lot! ) and lo and behold there was a stack of humidifier trays 1 foot square, fairly rigid, and cheap! Plus  they had exactly 6 of them. Right away I saw a fan inside  each one so we bought them and the rest is history.