psusi Copper Miner

(Quote from GregoriusT)

What about stone brick stairs, which are what I usually prefer to make my mine shafts with?

And what's a gearbox? From the name I would think it would be like a transformer, letting you step up/down RU, so I guess that means you…

(Quote)

Does this mean you can't make cobblestone stairs during early digging before you get a crucible and a saw mold?