1号石头刷石机 can be built in a 4×5×2 hole, with two blocks dug out of the bottom (level 0), and the clock extending two blocks out from one corner.
The upward facing piston is on level 0. The hole east of it contains redstone and is covered by any transparent block (glass shown for visibility). The redstone torch in the main section is temporary; once you've built the clock, place a lever on either input block (green wool), and flip the lever, then replace the torch with redstone dust. (This lever is turning the clock, and generator, off, so turning the lever on stops the generator.) After building, flipping the lever again runs the generator, or do a bit of tidying-up: The rest of level 2 can be filled with any block, and you may want to cover the lava (and even the exposed repeater), with a slab.
Variation: Since the clock is already protruding, you might substitute a longer one to cut down on the piston noise. Experiment carefully with the delays, as some clock cycles can stop production entirely. (With this 5-clock, the generator is moving the pistons three times for every block.)
Earliest Known Publication: May 29, 2012, Minecraft Smooth Stone Generator Tutorial by DJ&Riggaz.
2号石头刷石机 is a clockless build driven by a BUD switch.
The block marked ! is where stone is generated and moves as shown. A trench beneath the stone path can contain unfortunate lava spills.
The glass block needs some gravity block atop it: Sand is shown, gravel or even concrete powder also works.
This build can be mirrored but not rotated: It works only with the output going east or west, apparently due to a south-east rule.