I have build this farm but it doesn't work. I have done everything exactly like in video (I used cobble instead of glass but I think it's not a problem). At first golems were spawning really slow but I knew it won't be working immediately. After this they were spawning on the villager breeder's wall which is next to the farm so I removed this because I didn't need villagers any longer. So now golems aren't spawning at all. I don't know where did i go wrong. Any suggestions?
Hello, maybe the villagers can't see the zombies, the villagers must know the zombies are there for the golems to spawn, or maybe you put the villagers too far, that's all i can think of... If that doesn't fix the problem then try rewatching the tutorial and look for what you built wrong, maybe you'll find the reason why they don't spawn.
edit: Okay so i have looked in the comments and i found a comment from the guy that made the video saying "you can make it above ground or below ground the killling chamber just needs to be 16 blocks below the farm otherwise it throws off the average spawn rate!". The "killing chamber" is the place where lava is, maybe that could be the problem.