3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created. Each of these layers can be seen as a thinly sliced cross-section of the object. 3D printing enables to produce complex shapes using less material than traditional manufacturing methods. It all starts with a 3D model. One can opt to create one from the ground up or download it from a 3D library. There are many different software tools available, from industrial grade to open source. To start with, Tinkercad is recommended to beginners as it is free and works in the browser, doesn’t need to be installed on computer, offers beginner lessons and has a built-in feature to export the model as a printable file e.g. .STL or .OBJ. The next step is to prepare the printable file for 3D printer which is called slicing. Slicing basically means slicing up a 3D model into hundreds or thousands of layers and is done with slicing software. Feeding the file to the printer can be done via USB, SD or Wi-Fi. The sliced file is now ready to be 3D printed layer by layer. 3D printing encompasses many forms of technologies and materials as 3D printing is being used in almost all industries one could think of. It’s important to see it as a cluster of diverse industries with a myriad of different applications. A few examples include consumer products (eyewear, footwear, design, furniture), industrial products (manufacturing tools, prototypes, functional end-use parts), dental products, prosthetics, architectural scale models, reconstructing fossils, replicating ancient artifacts, reconstructing evidence in forensic pathology, movie props, etc.