digdown

local depth = 0

while true do
    -- Check if the block below is bedrock
    local success, data = turtle.inspectDown()
    if not success or data.name == "minecraft:bedrock" then
        print("Bedrock or void detected, stopping.")
        break  -- Stop if bedrock or void is encountered
    end

    -- Ensure there's enough fuel
    if turtle.getFuelLevel() == 0 then
        print("Out of fuel")
        break
    end

    -- Dig down and move
    turtle.digDown()
    turtle.down()
    depth = depth + 1  -- Count how many times it moves down
end

-- Return to surface
while depth > 0 do
    turtle.up()
    depth = depth - 1
end