Replacing block worleater (technically not a quarry)

So, you need a perimeter for that one big creeper farm I made. Congrats. I made a perimeter maker. Right click all the windmill bearings to engage them and then place at least 256 items in one (any) of the hoppers. If the machine starts moving the wrong direction, redstone pulse the copper bulb WITHOUT a button on it (marked in the screenshots here). That bulb decides direction, and if pressed once, the machine will be desynced to do everything in the other direction instead.

In reality this is a trench maker. So it will keep going forever making a 256 block wide hole, albeit fairly slowly.

This SHOULD work, but I am also a doofus sometimes, and might have missed something.

The machine should be placed high in the air at around 170 blocks up, and will most likely commit suicie if it hits a mountain or something, so give it proper clearance.

If you hadn't already guessed it, the amount of total items in one hopper decides how wide the trench is. If there are more than 320 items total in the two hoppers at any time, the machine breaks, so be careful.

This machine was built for aternos servers, which in most cases shouldn't matter. Though I am not sure how it interacts with render distances below 10.

FRAGILE.