Hello everyone , welcome you to my blog , (3D printer) Fast new 3D printing method creates objects as big as an adult human 3D printing got its start in the early 1980s. Today, the most common version uses light to cure a liquid plastic resin, layer by layer, into a solid. After the first layer is cured and pulled away from the printer, the projector illuminates the pattern onto a new layer that cures and joins to the first. 3D printers are precise enough to create far more intricate designs than most traditional manufacturing processes. Yet, early 3D printing was slow, often taking the better part of a day to manufacture objects the size of a coffee cup. Another problem was that the interfaces between the layers were structurally weak, making finished objects fragile. Mirkin notes that this technique can create objects nearly 1 square meter in cross section and more than 4 meters high by positioning light from four projectors side by side, a process they refer to as ...