How does 3D printing work?
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3d printers work by building the final part in layers. This can be done with a nozzle of some sort and squirting a liquid out or by using a laser to fuse a power or liquid resin. Regardless of the type of materiel or process being used the thing is first drawn in a computer program, then another program takes it and cuts it into layers the correct height, finally another program takes all the layers and prints them on top of each other so that they stick to each other.
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