I did this one time when I blow up all the printers in town, put in it machine parts, aether boilers and a put a piece of paper into it, the next day or so, the fog gates open. But at a heavy price. It takes a lot of cogs. I did it so much that I lost 700 cogs and now I struggle to find enough to create my tools. So I suggest that you do this strategy WISELY. Only when it is needed most.