while true do
    turtle.select(1)
    repeat
    turtle.suckUp()
    os.sleep(0.5)
    until turtle.getItemCount(1) == 64
    turtle.select(13)
    for i = 1, 4 do
        turtle.craft()
        turtle.drop()
    end
    turtle.select(1)
    repeat
    turtle.suckUp()
    os.sleep(0.5)
    until turtle.getItemCount(1) >= 8
    turtle.dropUp(turtle.getItemCount(1) - 8)
    turtle.select(13)
    turtle.craft()
    turtle.drop() -- makes 72 logs into planks

    turtle.select(1)
    turtle.suck()
    turtle.suck()
    turtle.drop(16)
    turtle.select(2)
    turtle.drop(16)
    turtle.transferTo(5)
    turtle.select(13)
    for i = 1, 3 do
        turtle.craft()
        turtle.drop()
    end -- makes 3 stacks of sticks

    for i = i, 5 do
        turtle.suck()
    end

    turtle.select(1)
    turtle.transferTo(9)
    turtle.select(2)
    turtle.transferTo(11)
    turtle.select(4)
    turtle.transferTo(1)
    turtle.select(5)
    turtle.transferTo(2)
    turtle.select(13)
    for i = 1, 16 do
        turtle.craft()
        turtle.dropDown()
    end
end