The GRAPHICA Robot is a quick-printing .STL 3D model. The robot's connected, hinged head, arms, and feet sprout from inside the chip and can be folded back inside of it. The whole thing prints in one piece.
Use it to test your 3D printer's ability to print mechanical moving parts. This model is one of the toughest for testing bridging, since such a large area of the moving surfaces prints inside the chip. If your print bridges, you can calibrate your printer before getting into a longer print, saving time and filament.
This model is great for demos because of its playful design and quick print time. All the GRAPHICA models are .STL files, and most print in less than an hour.
Difficulty level: 5 out of 5. Also comes with a display base.