For years now, we have been printing everything on paper using 2D technology. But now, thanks to modern technology, mankind has evolved what is known as 3D printing.
The difference between 2D and 3D is that while printing in 2D you can print anything that u can see but you cannot hold anything after being printed in your hand and feel it. On the other hand, in 3 D printing, you can print anything and hold the printed product in your hand and get a feel of it. You can feel the printed product like a real object or its prototype or model.
3D printing is also known as stereolithography. While printing in 3D, the whole design is cut into layers which are known as “slices”. These slices are then printed layer by layer from bottom to top. At the very same time, a laser is employed which hardens liquid resin into a solid as layers are being printed. In this way, actually 3D objects are printed. The touch depends on the material used for layer by layer printing and also depends on the finishing of the part. The touch of the printed product is very smooth on the tops of the parts while you can feel the layering while touching the sides of the printed product. In short, you can compare the touch of the resin with the back of the iPhone 3, but this again depends on the finishing and if there is any paint on that part being touched and felt.
3D printing not only involves a lot of technical expertise but also involves a lot of artisanal work. Using 3D printing many companies use to print prototype of their final product. Builders use it to design their buildings and car manufacturers use it to print their same model of car in various sizes from a very small toy size car to car of the actual size using the exact specifications. Here are some pictures that we gathered of car manufacturers using 3D print technology.