Over the weekend a crafty maker named David Wirth uploaded pictures of his latest project, a working, handheld railgun capable of firing several different types of metal rods as ‘bullets’. The railgun was constructed using a combination of 3D printed parts, readily available electronics and hardware. Just like full sized railguns being developed by the military, this railgun uses a set of parallel electrodes to launch aluminum, tungsten, graphite or even plasma projectiles at up to 560 mph. You can read more of this project over on 3DPrint.com: http://3dprint.com/101512/3d-printed-working-railgun/