After yesterday's Abandoned Assembly Yard marathon, I ended up with 8 large bridges, 7 large matrices and only a couple smalls. As of this point you can't even put a large in the factory and have it count as a small and the corresponding materials. So, until (if) Eleon decides to let us break these down further, I've become my own deconstructor. I trash a large and help myself to 1 small, 15 gold ingots, 80 oscillators and 50 zascosium alloy from the item menu. To me it's not cheating really as the bridges and matrices are actually finished products, just like a block or a device. The description may say they're intermediate materials but they're not.