Created using a mix of traditional materials and 3D-printed parts, with added lights, sounds and a working motor, Cory Alexander's Team Fortress 2 minigun replica is one hell of a build.
He spent 3 months making this. Skip to the 5-minute mark to see it in action:
His build thread over at RPF has some pretty cool shots of how it was made. As you can see, it wasn't easy.
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