Just as with a traditional printer, the resolution of a 3D printer matters. But in the 3D world, resolution is directly related to how useful an object printed with a 3D printer will be. Of course, the higher the resolution, the longer an item will take to print. Today’s 3D printers can print layer heights of between 100 and 150 microns. This will not result in a smoothly-printed object. Instead, running one’s fingers along an object printed at this resolution will reveal small variations in the object, much like one might experience when running their finger along a stack of paper.

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