Portable Solar Powered 3D Printers
Michigan Tech researchers have come up with two different portable 3D Printer systems. The first system is larger and can run for up to 35 hours on a single charge because of its large batteries. The second setup is much smaller, and fits into a suitcase. This setup can easily be carried on longer expeditions, but has less battery storage. You will find more information on both 3D printer setups here: http://3dprint.com/18836/solar-3d-printers
Below is a picture of the more portable of the two setups, featuring five 20 watt solar panels:
http://3dprint.com/wp-content/uploads/2014/10/sol1.jpg