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On 3D Printing Description Languages Introduction 3D printing is a new and exciting technology that allows us to create 3D objects designed using computer software.  3D models can be manufactured by sending their description to a device. This device is much like a printer in the way that it controls a given space, only this time it is the volume of a cube, rather than a flat page. It also has an arm, much like a printer head, that emits a substance, normally initially liquid which quickly gets solidified. By building one layer on top of another, one can get a three dimensional object. For no better name, we call it a 3D "printer", though it does much more than this - it manufactures a real object.  Picture of the ORDbot Quantum 3D printer. Source: Wikimedia The notion of being able to create 3D objects is quite wild. It changes the way we think about manufacturing.  We no longer have to make plates and then create masses of things to justify the plat...