Quarry

function Tiefe()

  for a=1,3 do
    turtle.digDown()
    turtle.down()
    turtle.digDown()
  end
  for a=1,4 do
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
  end

  turtle.turnLeft()
  for a=1,2 do
  for a=1,4 do
  turtle.dig()
  turtle.forward()
  turtle.digUp()
  turtle.digDown()
  end


  turtle.turnLeft()

  end
  for a=1,2 do
  for a=1,3 do
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
  end

  turtle.turnLeft()

  end

  for a=1,3 do
  for a=1,2 do
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
  end

  turtle.turnLeft()

  end

  turtle.dig()
  turtle.forward()
  turtle.digUp()
  turtle.digDown()
  turtle.turnLeft()
  turtle.dig()
  turtle.forward()
  turtle.digUp()
  turtle.digDown()


  turtle.select(1)
  turtle.place()

  for a=1,1 do
    turtle.select(2)
    turtle.drop()
    turtle.select(3)
    turtle.drop()
    turtle.select(4)
    turtle.drop()
    turtle.select(5)
    turtle.drop()
    turtle.select(6)
    turtle.drop()
    turtle.select(7)
    turtle.drop()
    turtle.select(8)
    turtle.drop()
    turtle.select(9)
    turtle.drop()
    turtle.select(10)
    turtle.drop()
    turtle.select(11)
    turtle.drop()
    turtle.select(12)
    turtle.drop()
    turtle.select(13)
    turtle.drop()
    turtle.select(14)
    turtle.drop()
    turtle.select(15)
    turtle.drop()
    turtle.select(16)
    turtle.drop()
  end

  turtle.select(1)
  turtle.dig()

  turtle.turnLeft()
  turtle.forward()
  turtle.forward()
  turtle.turnRight()
  turtle.forward()
  turtle.forward()
  turtle.turnLeft()
  turtle.turnLeft()

end

for a=1,29 do
  Tiefe()
end