| http://www.w3.org/ns/prov#value | - Just as chefs may use different concoctions and piping tips to create unique shapes with exactly the flavor, stiffness or other properties needed, material extrusion allows engineers--and enthusiasts--to quickly make new designs into objects meeting their specifications.3-D printing was developed by a Massachusetts Institute of Technology team led by Emanuel Sachs (patent 5204055 filed in 1989, aw
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