Version 2 is out now, check it out → here ← 

Essential Tool for Painting Minis

A print-in-place 3-jaw chuck built for miniature painters. It holds your figures securely, allowing for improved control during brushwork. No assembly or supports are needed.

After printing, lightly push each jaw side-to-side as shown below.

Then firmly rotate the center part either direction until it clicks free.

Now it should freely spin around, opening up spinning one way, and closing in rotating the other way.