Aircraft, spacecraft, satellites, rockets, drones, and parts or systems designed for flight, propulsion, aerodynamics, or space exploration.

Buildings, bridges, infrastructure, architectural models, furniture-scale structures, and parts or tools used in construction, renovation, plumbing, HVAC, or structural work.

Decorative, artistic, or visually expressive designs, including sculptures, jewelry, character models, ornaments, display pieces, and explorations of shape or form.

Vehicles and transportation systems—including cars, trucks, motorcycles, bicycles, trains, boats, and heavy equipment—and the parts or accessories used with them.

Computers, electronic devices, peripherals, circuit boards, sensors, switches, enclosures, mounts, cable-management parts, and other electrical or computing hardware.

Objects intended for everyday life, including furniture, kitchenware, storage, organizers, appliance parts, personal accessories, garden products, and pet products.

Machines, production equipment, fabrication aids, jigs, fixtures, tooling, and other designs used in workshops, factories, assembly processes, or industrial systems.

General-purpose parts used to connect, support, secure, guide, or transmit motion, such as fasteners, gears, bearings, brackets, hinges, springs, shafts, couplings, and fittings.

Designs related to healthcare, accessibility, biomedical engineering, laboratories, prosthetics, assistive devices, clinical equipment, or anatomical and surgical models.

Musical instruments and their parts, mechanisms, accessories, stands, cases, or other designs primarily related to creating or performing music.

Robots, robotic mechanisms, autonomous systems, manipulators, grippers, sensor platforms, and equipment designed to automate physical tasks.

Scientific apparatus, teaching aids, demonstrations, tutorials, mathematical models, educational projects, and designs created to explain or explore a concept.

Toys, games, hobby models, puzzles, sporting equipment, fitness products, and designs intended for play, entertainment, recreation, or outdoor activities.

Designs intentionally created for additive manufacturing and expected to be practically printable, although users may still need to choose appropriate materials, orientation, supports, or printer settings.

Designs intended to be customized by changing clearly defined dimensions, quantities, or other input values while preserving the model’s overall function.

Hand tools, power-tool parts, measuring tools, cutting tools, workshop accessories, and other designs primarily used to perform, support, or organize practical work.

Aquarium

Aquarium