3D printing in its simplest form it is a manufacturing process that involves layering materials to create a 3-dimensional object. It's an additive method that is distinct from subtractive processes, in which material is cut, drilled, or milled. However, 3d printed products can be used with a variety materials (like plastic or metal) and different methods (see "How do 3D printers work?"). They share the ability to transform digital files with 3D data, regardless of whether they were generated by using a computer-aided design software (CAD) as well as a computer-aided fabrication (CAM) program or a 3D scanner, into physical objects. 3D printer resolution is measured in microns--with FDM machines on the lower range of 25 microns, and resin based printers on the higher end around 100. A FDM printer can easily adjust the resolution of the final print. The belt's height and the height of the layer tension are the most important aspects to smooth printing. Resin printer...