Before a 3D printer can print, the item must be designed. CAD, short for Computer Aided Design, is a program that creates 3D models. The software slices the model into several hundreds of horizontal layers. As it is printed, the printer applies layer after layer to completely print the model. The most common material to print these 3D objects is Filament Polylactic Acid (PLA) filament . PLA is a thermoplastic, a type of softening plastic, that become pliable or moldable above a specific temperature and hardens upon cooling. Some other materials that are used in printing these models include stainless steel, wood, and polycarbonate filament.
The usage of 3D printer differs on the model. Some printers are industrial while others are commercial, like the printer in Mr. Barrett’s room. Several industries, like aerospace, architecture, automotive, defense, dental, medical, and mold industries are making use of 3D printing technology on a large scale. For example, in the aerospace industry, Fused Deposition Modeling (FDM) ) is used to build gauges for airplanes. 3D printers have also been used to create artificial limbs.
3D printers are truly a memorable technological advance.