User:Qcdynamics

Natural cobblestone is created when water touches a lava stream. This feature allows the player to construct a cobblestone generator, a machine that automatically produces cobblestone

Standard Cobblestone Generator
Standard generators have been around for quite a while. Their popularity, however, is limited because cobblestone is so readily available. Standard generators have carefully placed lava and water streams which become blocked by the newly formed cobblestone. When the player mines this fresh cobblestone, the streams are allowed to touch again which creates another cobblestone. The player can repeatedly mine this block, making it a renewable resource. The danger of using this type of cobblestone generator is that the item can fall into the lava stream, destroying the item. Even though cobblestone is a renewable resource, this greatly reduces efficiency in mining time. (awk)

Piston Cobblestone Generator
Pistons can be used to automate the cobblestone generator. Piston Cobblestone generators, work on the same principle as standard generators, but, rather than mining, a piston is what clears the fresh cobblestone allowing the streams to touch once again. Piston cobblestone generators can be used in two ways, to create a large supply of cobblestone that the player can mine later, or to keep the cobblestone as blocks, which can be used for self-repairing buildings.

Components
To simplify this tutorial, I'll break down the generator into the basic components. A working understanding of redstone is ideal (>>) ===

piston generators require a clock (with a pulse time slower than the flow of lava. a suitable clock will be discussed in greater detail later)

guide pistons. the generator will create a continuous row of cobblestone. since a piston can only push blocks a maximum of 12 blocks, a short series of pistons send the newly created cobblestone to a specific location to be gathered later. this is optional but highly suggested.

standard tutorial http://www.youtube.com/watch?v=UFUV_dRDtXE&feature=related

pistonized http://www.youtube.com/watch?v=XniUQJ8gGxc&feature=related

guide pistons http://www.youtube.com/watch?v=UFzw4U61TZE&feature=player_embedded#at=659