
Are you tired of losing cobble in the fire? Tired of having to chase after glitchy pieces that fly blocks away? Do you want a cobble generator that brings the cobble to YOU? Then keep on readin'!
This automatic redstone cobble generator will produce two lines of 12 cobble stone repeatedly as you mine away the ones it produces.
You will need:
Roughly half a stack of redstone
4 redstone repeaters
1 redstone torch
1 lever
Roughly 1 stack of cobble
2 water buckets
1 lava bucket
Start with the following shape:

Make a cross on top and knock out the middle:


Plop a lever down on the left side and turn it on

Wire up the pistons like so:

Place water blocks in each of the front compartments, flowing inward:

Place your lava in the center of cross on top so that it flows straight down

Turn off the lever and voila!

If you stand where the cobble comes out and back a little ways, the cobble will be pushed towards you

Thanks to Breatheasy for showing me this design!
