Former NASA engineer Mark Rober wanted an advantage over his colleagues, who were picking on him in his workplace's NERF battles, so he decided to create the world's biggest and most powerful NERF blaster. For help, he turned to his friends Ryan and David of Eclectical Engineering, who were happy to help. With an assortment of tools that included everything from PVC pipe to a paintball tank, they built a monster blaster that featured some useful 3D printed parts, as well as 3D printed, aerodynamic projectiles. Read more at 3DPrint.com: https://3dprint.com/139969/giant-ner...er-3d-printed/