3D Printer

3D printers are a thing of the future or I guess you can say of the present. 3D printers are printers that make a three-dimensional solid object, they start creating the objects layer by layer and eventually the object you wanted printed becomes real, this process is called additive manufacturing.  For the printer to work you need to have an .stl file then after the printer reads the file it starts to make the object with layers of liquid, powder, and or sheet material to create the model sheets then these sheets are automatically fused to create the final shape. It determines the thickness of the sheets of material by something called dpi which is dots per inch the normal thickness is about 100 micrometers or 0.1 mm. Depending on the type of 3D printer you have it can take from several hours to days it all just depends on how many how complex the object is and how many you are trying to create. 3D printers have been around for a very long time they may have not been very effect but in the 1970’s there were a hand full of 3D printers that were very large and very limited to what they could create.  There are even some companies that offer on-line 3D printing to customers all they have to do is up load their desired objects 3D design  to the company’s website and wait for what you have ordered. They are talking about in the future being able to recreate things like fossils and artifacts. Could you image??