And here I thought building hidden doors was cool:
http://www.kotaku.co.uk/2015/01/07/crazy-genius-builds-redstone-minecraft-word-processor
It's the fact that you can save your text file inside the machine inside Minecraft, and that he did it all without command blocks, that absolutely flabbergasted me...
I read the thread title and thought it said "Minecraft Wood Processor" and I was like "so what? Thats not that hard" (if you're talking an automatic charcoal maker).