3D printing is the building of a shape by a machine by adding material.
That is the most fundamental way to explain the technology.
The material can be plaster, thermo-plastic, nylon, steel, wax, chocolate, sugar, boxes, yarn, regolith, cells, molecules, bone, corn starch, concrete, sulfur, lava, glass, titanium, gelatin, silicone, dirt, rocket fuel, bronze, sand, water clay, tungsten, inconel, paper, plastic film, ice tea powder, ice, bacteria, polyurethane, seaweed, collagen, magnesium, fabric, other 3d printed parts, children’s building blocks, bricks, cinder blocks, wood powder, peanut butter… whatever.
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