@jman42 (View Post)
ARAY has a property of making whatever heat it holds its ray's heat. (If ARAY is 1000° C then BRAY fired from there is 1000° C too)
Just place METL in the opposite direction of the ARAY to fire BRAY in the other direction.
--- MMM ---
--- AAA ---
--- BBB ---
M: metal, A: aray, B: bray when fired.