Minecraft wiki entry for Redstone_tips, associated text: You shouldn't use a huge amount of space for a single contraption. Large builds take up a lot of space and are inconvinent. However, you also shouldn't try to create a fully functional redstone circuit in a tiny area. Complex redstone circuits often need plenty of space to function. For example, you cannot create a redstone computer which can perform number operations and display multiple items on a screen at once in only 1 chunk.