DIY Roots blower: Blower case and animation

So my previous posts was about blower rotors and how I might make them, now I get to put those rotors into a case. It is a rather simple case, but I am trying to make the construction as simple and straightforward as possible when I start making it out of wood later on. This is a primarily designed as a kind of DIY home made supercharger, not something you would bolt into your car.

And this is how it looks assembled

Since I have it all assembled, might as well make a animation of it...