User:Anomie x/Basic stone generator

This is a design for a basic clocked piston smooth stone generator, 2-high. Note that the lighter-colored blocks (one gold block with redstone torch, and the lava) are on the upper level, and the blocks used to contain the water and lava aren't shown.

If you'd rather have the stone going up than to the side (e.g. to have stone "growing" out of the ground), the one clock can be used to fire both pistons. The darkened piston is one layer lower, making this technically 3-high. The furnace could be replaced with any other immobile block.