Bukkit

Diamond Crusher

Crusher will be built facing the same direction as the chest was placed and is created 1 block above where the chest is placed. I recommend that you bury the chest 1 block into the ground.

The diamond crusher will turn 2 stacks of 64 coal into 1 diamond ore block.

To use, gather 2 stacks of 64 coal and click on the 2 empty iron blocks in the middle with them. This will place a solid coal block (resembling a black wool block). Fill the empty spot with 2 solid coal blocks and turn on the furnace. To do this you'll need to burn something, put fuel in the bottom and something in the top (doesn't matter what just as long as the furnace is on). Finally you'll need to power the iron block behind the piston (in turn powering the piston). You can do this however you wish. A button/lever on the side works great. After its done, you'll still need to mine the diamond ore from the crusher like normal.