how 3d printer works
In this article you will learn about how 3D printers work, their history and future. You will also find out about the benefits and risks of using 3D printers as well as what types of machines exist on the market today.
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Introduction to an Informational/Factual blog post: "3D printer"
3-dimensional printing (or additive manufacturing) refers to a range of techniques that use a computer-controlled system to create three dimensions of an object layer by layer from a digital model typically created on the computer using CAD or Computer Aided Design software.
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The technology of 3D printing is relatively new. The first patents date to the 1980s, however the first working 3D printer was not invented until 1988 by Chuck Hull of 3D Systems Corporation (also known as rapid prototyping or additive manufacturing technology).
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3-dimensional printing is often called additive manufacturing due to the fact that objects are created by laying down successive layers of materials instead of cutting or etching away material.
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The materials are often plastics, though other materials like ceramics, iron and steel, copper and more have been used in 3D printers in recent years.
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In fact, one company has even made a 3D printed rifle using a high power laser to fuse metal powder together layer by layer for the barrel.
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The technology of 3D printing is relatively new. The first patents date to the 1980s, however the first working 3D printer was not invented until 1988 by Chuck Hull of 3D Systems Corporation (also known as rapid prototyping or additive manufacturing technology).
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A typical Fused Deposition Modeling ("FDM") 3D printer works as follows: The model is broken down into many very thin horizontal layers.
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The printer then deposits a layer of plastic filament onto the platform and then an additive process occurs.
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The machine lays down a thin layer of molten plastic that solidifies quickly and adheres to both the layer below and to itself.
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The printer then moves on to another layer, repeating this process. When the object is finished, it emerges as a solid piece of plastic.
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The traditional method of creating 3D objects from a model using a CNC machine might look similar to how an actual 3D printer works in that both methods use layers of material:
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In using the CNC machine, however, the process involves a number of cuts and machines different parts for each layer in order to produce one final object. This process is time-consuming, expensive and results in a lot of waste.
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3D printing is currently the most common way of creating objects. The technology is also called additive manufacturing or fusing/sintering
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Typical 3D printers use several processes to reproduce three dimensions. Two of them are Fused Deposition Modeling (FDM) and stereolithography (SLA). The third method is known as Selective Laser Sintering (SLS). 3D printing enables the production of various forms of materials, including models, plastic parts, fabrics, ceramic shells and many others.
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They are changing the world by stimulating innovation in everything from aerospace engineering to medicine to fashion accessories, just to name a few.
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