Helix with sphere

grabcad

Here's an example of a human-made object designed specifically for 3D printing: This intricate device is comprised of numerous interconnected components, each precisely crafted to work in tandem with others to achieve a singular goal - creating complex shapes and structures. A combination of precision engineering and innovative design allows this device to manipulate and shape molten plastic with unparalleled accuracy, resulting in a wide range of possible outcomes. Its core consists of a high-temperature extruder, capable of heating the plastic to its optimal melting point, while a sophisticated system of gears and levers ensures precise control over the flow of material.