Right, let's put this to bed.
400mm spread so cut a piece of tube 420mm, pull 2x45 degree bends and trim slightly to suit, attempt to assemble and bends are at a tangent, cut pipe add coupling job done. Happy days.
400mm spread so cut a piece of tube 420mm, pull 2x45 degree bends and trim slightly to suit, attempt to assemble and bends are at a tangent, cut pipe add coupling job done. Happy days.