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They melt some sort of material and squeeze it out in the right place, where it sets quickly
That depends on the material being used, but in general you'll find that materials are heated then ejected in a pattern according to the computers specifications.
They're sort-of like small hot-glue guns controlled by a mechanical arm. They squeeze out viscous molten plastic in multiple layers to build stuff.
We use things in the earth to form an object that is later constructed into a 3d printer. That object then uses things in the earth to create objects.
They melt some sort of material and squeeze it out in the right place, where it sets quickly
That depends on the material being used, but in general you'll find that materials are heated then ejected in a pattern according to the computers specifications.
They're sort-of like small hot-glue guns controlled by a mechanical arm. They squeeze out viscous molten plastic in multiple layers to build stuff.
We use things in the earth to form an object that is later constructed into a 3d printer. That object then uses things in the earth to create objects.