User:MentalMouse42/Sandbox/Smooth Stone

Smooth Stone Generator B is a clockless build cycled by a BUD switch. The darkened parts indicate a channel beneath the build to contain lava spills.
 * The block marked ! is where stone is generated and moves as shown. A trench beneath the stone path will contain unfortunate lava spills.
 * The glass block needs a gravity block (sand or gravel) atop it.
 * This build can be mirrored but not rotated -- it will only work with the output going east or west, apparently due to a south-east rule.

Earliest Known Publication: May 1, 2014, Simplest Automatic Stone Generator - KollinsPlays Minecraft Vanilla Tutorial.