| It is reported that, from manufacturing to medical care, 3D printing has begun to gradually come into sight.Although the word 3D printing has been well-known, but the desktop 3D printer is still not really popular among consumer groups.Compared with the traditional mode of production, The economy of 3D printing is an important factor that affects its development. The impact of production speed can not be ignored.  Recently, researchers at the Massachusetts Institute of Technology (MIT) Department of Mechanical Engineering published a paper on "Additive Manufacturing." The paper shows that they have developed a new desktop 3D printer called 'FastFFF' Ten times faster than existing printers on the market. Researcher Professor Hart said: 'At present, the average speed of commercial desktop 3D printing is about 20 cubic centimeters per hour print, similar to the structure of several LEGO bricks, the speed has greatly hindered the feasibility of 3D printing.' At present, desktop 3D The most commonly used technique for printing is FFF (Melt Extrusion), in which thermoplastic polymer materials are heated and melted into filaments, extruded from the print head like a toothpaste and then formed by layering. Hart has fine-tuned the printheads for speed limitations on existing FFF molding technologies by designing a screw that provides more extrusion pressure and allows print materials to be quickly extruded On the other hand, a laser is installed near the auger to speed up the melting of the print material so that it can flow out of the nozzle faster. Researchers at MIT have used the new desktop 3D printer to print small frames, bevel gears and even a small version of the MIT landmark dome in minutes, with 3D printing Too much more than this, this printer can also be used in emergency medical, remote areas of the various needs. Although this new desktop 3D printer is more efficient and easier to use than a traditional 3D printer, it still takes some time to get it to market. |
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