[Nagy]

All been working smoothly so far.

Mining Turtle code V6

function mForward()
	while not turtle.forward() do
        turtle.dig()
    end
end

local tArgs = {...} 
if #tArgs ~= 3 then    
    print("Requires length, width, height")
    return 
end  
 
local x = tonumber(tArgs[1]) - 1 
local y = tonumber(tArgs[2]) 
local z = tonumber(tArgs[3])  

 if x == nil or y == nil or z == nil then
    print("Invalid dimensions")
    return
end

if x < 0 or y < 0 or z < 0 then
    print("Invalid (negative) dimensions")
    return
end

local fuel = turtle.getFuelLevel()
local roomSize = (x * y * z) + 100

while fuel < roomSize do
     if not turtle.refuel(1) then
         print("Not enough fuel")
         return
     end
	 fuel = turtle.getFuelLevel()
end

local direction = true

for i = 1, z do
    for j = 1, y do
		for k = 1, x do
			turtle.dig()
			mForward()
		end
		if y ~= 1 then
			if j < y then
				if direction then
					turtle.turnRight()
					turtle.dig()
					mForward()
					turtle.turnRight()
					direction = false
				else
					turtle.turnLeft()
					turtle.dig()
					mForward()
					turtle.turnLeft()
					direction = true
				end
			end
		end
	end
    if i < z then
		turtle.digUp()
		while not turtle.up() do
			turtle.digUp()
		end
		turtle.turnRight()
		turtle.turnRight()
    end
end
 
if z % 2 ~= 0 then 
	if y % 2 == 0 then
		turtle.turnRight()
		for i = 1, y do
			mForward()
		end
		turtle.turnRight()
	else
		turtle.turnLeft()
		for i = 1, y - 1 do
			mForward()
		end
		turtle.turnLeft()
		for i = 1, x do
			mForward()
		end
	end
end


turtle.turnRight()
turtle.turnRight()

for i = 1, z - 1 do
    turtle.down()
end