[sparkycuda]

Your build is really great and very ingenious the way pieces have been fitted together to save space and provide access - outstanding workmanship! Concerning the aluminum brazing problems: I've used it several times with excellent results; however, on thicker pieces like you are using, allow extra time for all of the metal to reach the melting point of the rod. Early on, I had problems with heavier pieces and learned to wait a bit to be sure everything was up to temp. Even had to use a different torch once in order to get enough BTUs for proper melting. I've always used a stainless steel brush for prep, but never used flux.
Keep up the good work!

Ken