Is this 3D Printing/ Molecular Bonding/ Reconstructing realistic?

First question of many here in my pursuit of grinding out my science fiction story. The problem at hand though involves how a multi-generational ship would survive 500 years hurtling through space, without having to fight the age-old mortal battle of the struggle for resources.

My solution for this is a widely available future appliance that can create anything, from food and drink, clothes, to tools. I'm primarily focusing on the food aspect. Is the idea of 3d printing food out of simple molecules a realistic possibility? Could it be the solution for hunger on an ever growing ship with limited space for resources?

My idea is simply the bonding and reconstruction of molecules and atoms, from the waste produced both in the air and in feces. Take off an electron with 13.6 volts there, and add a proton here, and there's a steak. You see what I'm saying?

posted almost 8 years ago

Blade Frank‭

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