local quarryDepth = 2
local quarryWidth = 16
local quarryLength = 16
 
local function diglane()
  for length = 0, quarryLength do
        turtle.dig()
        turtle.forward()
    end  
end
 
local function quarry()
    for depth = 0, quarryDepth do
        turtle.digDown()
        turtle.down()
        for width = 0, quarryWidth, 2 do
            diglane()
            turtle.turnRight()
            turtle.dig()
            turtle.forward()
            turtle.turnRight()
            diglane()
            turtle.turnLeft()
            turtle.dig()
            turtle.forward()
            turtle.turnLeft()
        end
        turtle.turnRight()
        turtle.diglane()
        turtle.turnRight()