![Smile :)](./images/smilies/icon_e_smile.gif)
How about assembly machines that need to be connected with rails for the train to come out, or connected with inserter to some "train depot" where the train can be deployed. This should make players need to think ahead of where the stuff is built, because logistics of big stuff should be a big thing.
There should arise new questions in the game like "Oooh yeah now i crafted X... but how the hell i get it to the place where i want it?" and "Maybe delivering crude materials and making the assembly of X somewhere else could be a better idea" (X can be any big thing you dont normally stack in thousands in your pockets)
Iam aware that this is not really a good idea for first moments in game - hauling big steam engines should be considered "big stuff" aswell, but maybe disabling stacking of steams and stuff like that to make player only carry less and use temporary chests somewhere in his base?
(imho stacks of already built items should be lowered - turrets, rails, assembly machines, etc...)