I'm confused. What is a circulator and what does it do?
I also don't understand what the purpose of the triangle exposed area is for? Is it bracing? If so, why brace it on the outside instead of on the inside where it would add to the integrity of your plywood decking?
It's hard to tell, but what is the span of your plywood decking over it's mounting points?
This has been allot of fun to follow.
Eddie
