A few months ago in the wilderness frontier of SMP5, I was building an iron golem farm engineered by TangoTek. It's based on recreating villages and positioning them one after the other. However, I haven't been able to get it functional. I tried giving more time for the villagers to register and deregister doors, but it made no effect. My final guess after proceeding to another mob farm is: [This farm will not work in bukket(A modded Minecraft server)] because it does slow down of the game's processes, like 'natural' mob spawning.If you wish to build one of these farms, here's a link to TangoTek's tutorial.*NOTE: The video is over 1 hour long, and I recommend only experienced Minecraft players to watch.https://www.youtube.com/watch?v=YFaCNsuD01k[Tutorial Corrections]:https://www.youtube.com/watch?v=sRBHmAmSXek&feature=youtu.be*NOTE: The Max Villagers Explanation actually goes by how many unique positions for the villagers(One occupied block is one position).*If I can get this farm working, I'll able to get over 16 stacks of iron ingots every hour!