function check()
        if turtle.getFuelLevel() < 100 then
                turtle.turnLeft()
                turtle.select(16)
                turtle.suck(64)
                turtle.refuel(64)
                turtle.turnRight()
        end

        if turtle.getItemCount(15) < 1 then
                turtle.turnLeft()
                turtle.turnLeft()
                turtle.select(15)
                turtle.suck()
                turtle.turnRight()
                turtle.turnRight()
        end

        if turtle.getItemCount(1) > 0 then
                turtle.turnRight()
                turtle.select(1)
                turtle.drop()
                turtle.select(2)
                turtle.drop()
                turtle.turnLeft()
        end
end

function cut()
        check()

        turtle.select(1)
        turtle.dig()
        turtle.forward()

        while turtle.detectUp() do
                turtle.suck()
		turtle.digUp()
                turtle.up()
        end

        while not turtle.detectDown() do
		turtle.suck()
                turtle.down()
        end

        turtle.back()
	turtle.select(15)
	turtle.place()
end

while turtle.detect() do
        local success, t = turtle.inspect()

        if success then
                if t.name == "MineFactoryReloaded:rubberwood.log" then
                        cut()
                end
        end
end