Impossible Sphere in Cube

prusaprinters

<p>A sphere trapped inside the edges of a hollow cube. The sphere won't fit through the cube. But 3D printers let us create shapes like this by printing them in place. The cube is pocket-sized at 25mm edge length.</p><p>You need a brim around the sphere to keep it from rolling during printing. The .3mf file includes this, but if you use the .stl file you'll have to add it yourself.</p><p>You shouldn't need to worry about anything else. I didn't use supports and the bridges (top edges) came out fine.</p>