So there have been various thoughts going into the cooling system. The fans I have are big enough in the opening for two tubes to feed out, and in the length of those tubes small holes can be drilled that allow air to pass through, so long as the end of the tube is capped off, which allows for greater pressure. Where the tube disappears under my chest piece is where I would have drilled these holes. Time constriction prevented my adapting this right now, but I fully intend to implement it in future.
For the helmet I have two fans installed in the brim. I also have a piece of padding in the center of the helmet from the visor to half way back, which allows for the air to circulate around my head.
Just so you know, after a rough day of somewhat intense physical activity, chocolate milk is AMAZING! It's so good I had to stop typing and tell the internet. It's a homemade recipe, and it's delicious.
Anyway, I would run one fan at a time for best circulation and battery life, but running both fans together was hard to beat.
This also prevented any visor fog or condensation. When the batteries died, it took about 5 minutes for the visor to be drenched with the condensation, so definitely a must.
I am also interested in experimenting with cooling the air going into the fans by using those medical freeze pouch things, but that is an update for another day.
