Re: Question concerning vision target
 

ours is metal but we also put a small muffin fan in it to keep it cool

Re: Question concerning vision target
 

We made ours out of wood that is close to white on the inside. It is still very bright. Just for efficient cooling I plan on putting both an intake and exaust fan in it. I have yet to do that.

Re: Question concerning vision target
 

You should make sure that the reflectance of the inner surface of your light box is similar to that of the one your robot will look at during competition, otherwise your camera will be incorrectly calibrated.

That's why we went with the Hammond chassis recommended in the drawings. It costs a few dollars more than the wooden box, but the resulting brightness should be identical to that on the competition field.