[citation][nom]alidan[/nom]the moment the 3d printer comes out, i will be making and selling awesome models on ebay.you have to know that even if it comes out in 3d, its colorless, i happen to be REALLY good at model painting.the printer will cost 1000$ the models will cost 10-20$ in ink like material, and painting will be 50$ a model charge. for 100$ total. 10 models later, or 1 month, and im at least in the black for a hobby of mine.[/citation]
You will have to make some really unique models to prevent copyright infringement on other peoples work (sorry that means no models of movie franchise items or you'll end up with something like this - https://torrentfreak.com/paramount-cease-and-desist-targets-3d-printer-pirate-110628/ ) and you will also have to move very quickly before the big toy and product manufacturers cash you out of the business ($100 per model vs $1 [being generous there] cost price per unit for the China/etc sweatshops that can output 1000 units for the time you spend on 1 unit would price out out of the market before you even started).
I suggest you try to modify one of these into a replicator, no need to worry about wasting time and effort on making and selling 3D objects or slaving at work for a paycheck (and keep it secret, that thing would start a war).