It appears that spinoffs of the well-known 3D-printed Liberator handgun have already begun.
In a new YouTube video (see below), a user that goes by the name ThreeD Ukulele claims to have designed and 3D-printed a single shot .22-caliber rifle.
Dubbing the gun "The Grizzly," ThreeD Ukulele says he followed the designs of the Liberator by incorporating coiled mainsprings and keeping the gun entirely plastic except for the 1" metal roofing nail. He says the rifle was printed on a Stratasys Dimension 1200es 3D-printer.
The video shows the white plastic rifle clamped to an outdoor table. The person operating the gun has a string attached to the trigger; he steps back, pulls the string, and fires the gun.… Read more