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Uploaded on Mar 5, 2011
In this video I will show you how to make a blast proof doorway for doomsday bunkers and it works pretty well for a gate. This works on the same principle as a cobblestone factory or self repairing wall in which when the block separating a lava source from a flowing water block the water and lava combine to form cobblestone in the place of the doorway until you remove the lava source and replace the door.