How does a 3D printer work?Let me explain the mechanism to you.A typical 3D printer is very much like an inkjet printer operated from a computer.It builds up a 3D model one layer at a time,from the bottom upward,by repeatedly printing over the same area in a method known as fused depositional modeling.Working entirely automatically,the printer creates a model over a period of hours by turning a 3D CAD drawing into lots of two-dimensional,cross-sectional layers-effectively seperate 2D prints that sit one on top of another,but without the paper in between.Instead of using ink,which would never build up to much volume, the printer deposits layers of molten plastic or powder and fuses them together with adhesive or ultraviolet light.
甘比英文拓展写作-3D printer-蛋小蛋joyce
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