You have learned a little about 3D printers and 3D printing. You discovered some opportunities for you to use your Blender design skills in 3D printing. We covered the fundamentals of how a 3D printer works and the different kinds of printers that there are. And you discovered that 3D printers can handle a wide variety of materials from wood, to plastic, to titanium. You learned a bit about factors to keep in mind when you are designing objects for 3D printing in Blender, such as the sizing and tolerances.
3D printing is an industry just taking off. It's time to join in the excitement and learn how to use Blender to make objects for 3D printing. Let's go!