3 ms·

Can someone who understands this space well tell me where something like RepRap (http://reprap.org/wiki/Main_Page http://reprap.org/wiki/Main_Page) compares to

• Gelada 16y ago
  The central difference is whether the process is by addition or subtraction. 3d printers, like the reprap, add material (for example melted plastic) to make an object. A router on the other hand removes material from an object until it is the required shape. As a result you can use many materials (like wood) that cannot be easily broken up into smaller parts and reassembled.