Haven't had much time to work at the machine shop since my shoulder surgery and international travel for work, but have been slowly making progress on a new prototype. This, however, is something I made at home without any machining:
It's a flame poofer of the usual type that you see at the burn, pretty easy to build, with a solenoid controlled valve. But the difference is that I built this one with camping stove propane containers, the small 16 oz ones:
With a bit more plumbing, this could easily fit inside a backpack. This would almost certainly be a violation of the fire art safety rules, though, a portable backpack-worn poofer...so I definitely will NOT be running around deep playa with one of those.
I've also considered the thought of passing that flame through an acrylic tube, of the sort I was using for the slow-burn prototype, just to see what the effect was. I may still give that a shot.
