
Mechanical Machine 3D Models: Gears, Engines, Automata
This collection gathers 3D models of mechanical machines: marble runs, gear trains, engine demonstrators, hand-cranked automata and puzzle boxes. Most of them are meant to be assembled and moved by hand, so they suit anyone who wants a 3D printing project with moving parts. The range covers small desktop toys as well as larger multi-part builds. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
Esta colección está escrita en inglés, pero la búsqueda funciona en cualquier idioma.
Cómo se elabora esta colección
Polyzon reúne esta colección a partir de los resultados de búsqueda de las plataformas conectadas. Se eliminan los duplicados y los modelos sin vista previa, las coincidencias débiles van al final y el resto mantiene el orden de la búsqueda. Los modelos pertenecen a sus autores: consulta las condiciones en la página de cada modelo.
Criterios de selección: el equipo editorial de Polyzon · Texto actualizado el 13/10/2026
Por dónde empezar
Todos los modelos de esta colección

Mechanical Adding Machine - Retro Lightning Style

The 3D Printed Marble Machine #3

Mechanical Vending Machine

Hand-Powered Mechanical Fan — 3D Printable Project

Mechanical principles Toy I (Rotary piston mechanism)

Mechanical Cast Signing Machine

Mechanical marbel machine

The Machine Core – Mechanical Puzzle Box

Mechanical Engine Mechanism

Marble Machine

Mechanical Counting Machine

Vintage Singer Sewing Machine – Functional Model

Mechanizma

Mechanical Finger Tapping Machine

Mechanically Powered Useless Box / Machine

Functional 4-Stroke Engine

MECHANICAL FLOWER - MECHANISM GADGETS
Classic Transport Truck No Support

Destructive testing mechanical hammering machine

The Ultimate Candy Machine | Jackpot M&M Dispenser

Engine Piston Mechanical Principle Toy

Steampunk Iris flashlight

Механическая ТАП-машина для майнинга NOTCOINs / Mechanical TAP machine for mining NOTCOINs

Mechanical monkey

mechanical weighing machine

mechanical wave machine

Cocktail and Drink Mixing Machine 100% mechanical

MECHANICAL CONVEYOR

Mechanical Adding Machine

Flat Lap Rock Polishing Machine with Mechanically Fixed Disks

Toy Coffee Machine – functional design

Mechanizma

Useless Machine (Trammel of Archimedes)

Mechanism 108 – Reciprocating Motion from Rotation

Mechanical Rowing Boat Automata
Treadle Foot Powered Sewing Machine Mechanical Model

Hand Bubble Machine

механическая диафрагма

Self Congratulator - Good Job, Me!

Verti-Mech System
The 3D Printed Marble Machine #2 (no Cura)

Flying Tourbillon 1.5 Remixed SOF

Mechanical Transmission Toy – A Swimming Fish

机械手
«Mechanical Machine 3D Models: Gears, Engines, Automata»
The models differ mainly in how the motion is produced. Marble machines and rolling-ball tracks rely on gravity and sloped channels, engine and mechanism demonstrators use pistons, cranks and gears, and automata or tapping figures convert a hand crank into a repeating movement. Puzzle boxes and useless-box designs add a small logic element, where a sequence of steps has to be found before the mechanism opens or reacts. Retro machine replicas sit somewhere between a display piece and a working model.
Before printing, read the author's model page for the number of parts, the assembly order and whether supports are needed. Check the stated size and scale, since a mechanism that works at one scale can jam when scaled down, and look at the material and layer settings the author lists. Photos of real prints are the most useful reference for tolerances, clearances between moving parts and how the pieces fit together.
If the results feel too narrow, try related wording: gear mechanism, crank toy, marble run, automaton, kinetic sculpture, piston engine or puzzle box. Adding a material or a use to the query, such as PLA or desk toy, changes the mix of results. Browsing the mechanism and toy categories alongside this collection also surfaces models that use the same principles in a different shape.
Preguntas frecuentes
What counts as a mechanical machine model?
Do these models need extra parts?
How do I make moving parts fit properly?
Can these be scaled up or down?
Todas las categorías de modelos 3D
El catálogo completo de temáticas, del hogar al CNC, con búsqueda en todas las plataformas conectadas.








%2Fhttps%3A%2F%2Ffbi.cults3d.com%2Fuploaders%2F13662194%2Fillustration-file%2F3feec372-3e4f-481c-af83-0849ad40ebb0%2FMechanical_Gripper.gif&w=300)
