When it comes to hobbyist creations, gears are usually a part of the equation for many mechanical devices—from racecars to clocks, puzzles, and more. The question is, how do 3D printed gears hold up? And the answer is: it depends. While they may not ever be able to hold up in terms of strength to traditional metal gears, with the proper printer, materials, and know-how, you can make some amazing 3D printed gears that will blow everyone away, as well as offering durability and surprisingly high performance. Read more at 3DPrint.com: http://3dprint.com/125143/3d-printed-gears-pass-muster/