3D printing makes it easier and faster to produce complex objects with many moving parts with elaborate designs, and it's affordable enough to use at home. Additive manufacturing is a category of manufacturing technology that contains 3D printing according to its guidelines. Additive manufacturing involves creating an item by adding a substance layer by layer to the item you are creating into. Additive manufacturing has many aliases that you may have encountered, such as stereolithography, 3D layering, and 3D printing. Much like how layered water drops form icicles similar to mineral deposits in caves, 3D printing performs a similar process in which it adds layer by layer of material to its base. In contrast, 3D printing is a faster process and masks a programmed design provided by computer software. The computer instructs the 3D printer to add each new layer over a precise cross-section of the final object. 3D printing builds on the knowledge of inkjet and has been accessible for 2D printing since the 1960s. The nozzles of a 2D printer move back and forth to dispense fluid. Conversely, instead of the nozzles moving, the print surface moves up and down, unlike flat movements. Additionally, these printers do not use ink; they dispense thick waxes and plastic polymers, which solidify to form each new cross-section of the sturdy 3D object. 3D printing was modeled after the generation of 2D printers that paved the way for this exciting new technology. Binder printing is a major contender and has some advantages over direct 3D printing. For example, it tends to be faster than direct printing because less material is applied through the nozzles. Additionally, another advantage is that you can incorporate a wider variety of materials into the middle of paper......eos on how to make them. The first models were not yet fully developed to what they are today. 3D printed weapons that can function as well as a real weapon. Having access to this type of information on the Internet can potentially cause great harm. Now guns can be sold without serial numbers and have a strong presence on the black market. Now anyone with access to a 3D printer can print a gun in their own kitchen. It raised eyebrows and the government had it immediately removed from the Internet once published, but the weapon design remained on the Internet for three days. Which is enough for something to go viral and others to copy the design and publish it elsewhere. A few days later, the files spread to various web pages where they were downloaded more than 100,000 times. How can the government deal with the threats? For now, it's a game of cat and mouse..