View difference between Paste ID: sHPP3jcY and haT8Q4s3

 -- Fill the whole turtle with 64 stacks of fences. Refuel.
 -- Place it anywhere (high above lands is prefered, but anything is possible besides bedrock)
 local stackProgress = 1
 local site = 1
 local currentStack = 1
 local stackSize = 1
 
 -- outer while loop. 4 times (1 for each side of the square)
 while (site < 5) do
  stackProgress = 1
  -- side while loop. 4 times (1 for each stack of fences for this side)
- while (stackProgress < 5) do
+ while (stackProgress < 2) do
   stackSize = 1
   -- stack while loop. 64 times (1 for each fence of the stack)
   while (stackSize < 65) do
    -- gravel/sand detection
    while turtle.detect() do
     turtle.dig()
     sleep(0.25)
    end
    turtle.forward()
    turtle.select(currentStack)
    turtle.digDown()
    turtle.placeDown()
    stackSize= stackSize + 1
   end
   stackProgress = stackProgress + 1
   currentStack = currentStack + 1
  end
  turtle.turnLeft()
  site = site + 1
 end