Block gate must be placed in secondary output mode (right click on any other direction of hte gate) and must be directly next to the cobblestone or what have you.Aww. Can't use hammers from a block gate? Or am I doing something else wrong?
Setup has, as the idea, the same reasoning behind the super-fast sieve. 1-tick clock throwing the hammers at the cobble. But the same 1-tick clock is also operating the rapid item valve [collecting everything]. Returned hammers show no use.