![]() ![]() TPU: Thermoplastic polyurethane is a very flexible rubberlike filament that excels at resisting abrasion and impact and is impervious to damage by greases, oils and solvents.When glycol is added to it, the result is called PETG, a plastic that is not only more durable but easier to handle, too. PET: Polyethylene terephthalate is valued for its high strength and moisture resistance. ![]() It requires high printing temperatures, is not biodegradable and often gives off irritating fumes. ABS: Acrylonitrile butadiene styrene is a favorite of people just starting out in 3D printing because it’s strong, flexible and affordable.It dissolves in water just like the plastic pods that many liquid laundry detergents come in and so is used mainly as supporting structures for 3D prints made with PLA. PVA: Polyvinyl alcohol is colorless, odorless and nontoxic.PLA is great for 3D printing because it’s cheap, easy to work with, available in many colors and can be used either as a filament or a resin. PLA: Polylactic acid is environmentally friendly because it’s made from renewable organic resources such as sugar cane and cornstarch.Most are resins and filaments, thin elongated threads that come wound on spools that are sold by the pound. What materials are used in 3D printing?ģD printing uses different types of materials for different applications. Similar to the number of pixels on a screen, the more layers used in the printing process, the more crisp and detailed the final products. What is 3D printing?ģD printers use a manufacturing process that adds layer upon layer of ultrathin material to build a complete object. FDM is also referred to as FFF, for fused filament fabrication. Following the digital instructions, the FDM printer squeezes plastic filaments through nozzles like toothpaste through a tube, only much tinier and one thin layer at a time. It is a process that creates a physical object from a digital file. The letters stand for fused deposition modeling. The largest are the professional machines used by experts. Most are plug-and-play desktop devices that are safe and easy to use, even for children. The smallest FDM 3D printers are special pens that extrude heated plastic from the pen’s nozzle, allowing you to “draw” 3D objects in the air. ![]() FDM 3D printers have nozzles that melt threadlike materials that are deposited in thousands of amazingly thin layers. It is the most common of today’s 3D printing machines. ![]()
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