
The way that this 3D printed gun will be able to rotate is by using a Raspberry Pi for the operation’s brains. A Sentry Gun is one that has a turret body that can rotate side to side about 90 degrees, with the machine gun part designed with the ability to both move up and down and point the gun and body toward the face.

As gamers and 3D printing enthusiasts frequently intersect, it’s no surprise that the Internet is full of instructions on how to print elements from video games, including HL2.Ī recent blog post documents the making of an HL2 Turret/Sentry Gun, explaining what this kind of gun is and how exactly one begins to design a 3D printed version of it. The first-person shooter game was released in 2004 to much acclaim from both critics and fans, and it’s remained wildly popular.

If you’re even a casual gamer, you’re likely at least somewhat familiar with Half-Life 2, even if you haven’t played it yourself.
