Thanks for sharing! What do those buttons do? Are those things they're hooked up to droppers? What do they drop? The ingredients or the already-made potions?
those buttons send a redstone pulse to the dropper above it and another containing nether wart .. the ingredients go into a hopper line that adds them to the brewing stand. Items needed to make this? 1 Brewing stand, 28 hoppers, 12 signs, 14 item holders, 14 droppers, 12 buttons, 10 repeaters, 12 redstone dust, 2 chests and building blocks of your choice - I know this is an older thread, remade this at my new res 13500.