gears would be cool . mine the iron smelt it down have about 4 different size ones you can make and be able to place them together and be able to add rope or cable to run things like elevators. Maybe be able to use the gears for doors or the train and cars that are coming.
18.03.2019: Ein neuer Hotfix (0.9.5.4) ist nun verfügbar! Multiplayer Server müssen entsprechend geupdated werden