Printer & its types and problem facing in our society with Solution

What is 3D printing?   3D printing, also known as additive manufacturing, is a process in which a digital file is used to create a three-dimensional solid object. In the 3D printing process, sequential layers of material are laid down by the ‘3D printer’ until object creation is completed. 3D-printed objects are created through an additive process, where the printer places layer after layer of material until the desired thing is ‘printed’. Each layer can be considered a finely sliced cross-section of the printed item. With 3D printing, users can produce complicated shapes without consuming as much material as traditional manufacturing methods require. The operation style of 3D printing is the opposite of ‘subtractive manufacturing’, where the material is cut out or hollowed using equipment such as a milling machine. Conversely, additive manufacturing does not need a mold or material block to create physical objects. Instead, it stacks layers of material and fuses  them togethe...