Well I broke out the old pencil and paper and I've settled on a design. Sorry the proportions are a bit off but it made it a bit easier for the design.
This one is the winning design
There are two sets of louvers, one on each side that will open and close with door lock actuators the two middle sections each have 3 louvers will be controlled by the motors I pulled from a rc car. The plan is that each one can be opened separately to allow for more precise air flow.
I numbered each one in the picture and I was wondering if you think opening them in a specific order will be more effective or if it won't make much difference. I figured that opening from bottom to top would be best but I don't have any data on that just a guess.
My only worry is that the rc motors won't be strong enough but if not I have another idea that will work.
Oh and better yet I may have found the material for the block in the garage. Nothing beats free!
