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Editor's Notes

1. 3D printing is any of various processes used to make a three-dimensional object from a digital file such as this one The creation of the object is called an additive process So in an additive process an object is created by laying down successive layers of material until the entire object is created
2. So how does the process start? The process begins with making a virtual design of the object You could either do this with the help of CAD or Computer Aided Design to create the object or by using a 3d scanner to copy an existing object This scanner will make a 3d digital copy of the object and puts it into a 3d modeling program To prepare the file for printing, the software will slice the final model into hundreds or thousands of horizontal layers The printer will then create the object layer by layer
3. Not all 3d printers use the same technology to realize their objects There are actually several ways to do it, differing mainly in the ways the layers are build to create the final object Some methods use melting or softening to produce the layers of the object So the two most common methods that apply these are SLS and FDM Another method is to lay liquid materials that are cured with different technologies The most common method that applies this is called stereolithography
4. Visualizations and art, artists have been using 3d printing in various ways Such as this piece done by artist Joshua Harker 3d industrial printing can be very beneficial for businesses that need to make prototypes Education in fields such as paleontology to recreate fossils