| http://www.w3.org/ns/prov#value | - The 3D pen works by heating and extruding plastic and then quickly cooling it as it passes through the pen, thus enabling you to either draw in two dimensions and then lift what you???ve drawn off the paper or other surface as a new plastic creation, or to also draw vertically as well to make cubes, pyramids, animals or other 3D objects (including their 3D Eiffel Tower model shown here).
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