Thanks. The diamond plate is really easy to work with. I just wandered past it in the hardware store and snagged it on a whim. I'm glad I did.
I think I'm bout done for the weekend, but I did get it all wired up well enough for a test spin. I'd say I'm moving some air.
I probably should explain what I'm trying to demonstrate in that video little better.
What I'm doing is playing with the different potentiometers for each of the two top blowholes. The airflow "pattern" for lack of a better word, seems very sensitive to the RPM's of the fans, moreso than I expected. If you watch closely in the video, you can see the tissue's back, then front, then back (again, briefly) corner being blown up more than the other. That's the difference of just a hair turn on the controller dials -- altering the flow in even that tiny confined space within the shroud and out the slot-vent on the side.
It should be a bit of a balancing act, but since I'm basically mirroring the blowhole configuration at the bottom of the case with an intake, I'm hoping that I end up with a very configurable set-up as far as the air patterns inside the case. I had hoped for an effect along these lines when I decided to go with the individual control for each case fan, but I didn't expect it to be as responsive at its appearing to be so far. That all might be just due to the small volume of the shroud, too. I'll know more when I get the whole system up and running properly.
I need to rework my wiring scheme -- as it sits now that shroud is a bear to get on and off, just due to all the wiring basically tying it down. Once I get that sorted and get the rear controller on-line for the bottom intake, I should be able to do some pretty interesting things with the case sides on and the whole system "sealed" up.
The end result will be a fan control knob for each individual fan. The four on the shroud control the two blowhole fans and the front and rear intake. The two in the rear will control the two bottom intake fans. (That configuration was mostly chosen for wiring ease -- I don't expect to be fiddling much when I have the system up and running, except when I swap/add some hardware and need to do a tweak).