
3D Models of Combustion Engines for 3D Printing
This collection gathers 3D models of combustion engines in several layouts: rotary, inline, V-shaped, radial and boxer. Most files are meant for 3D printing as display pieces, study aids or mechanical demonstrations. The range of scales and part counts makes it easy to pick something that matches your 3D printer and the time you want to spend on assembly. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
Der Text dieser Sammlung ist auf Englisch verfasst; die Suche selbst funktioniert in jeder Sprache.
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Auswahlregeln: Polyzon-Redaktion · Text aktualisiert: 10.10.2026
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Alle Modelle dieser Sammlung

Internal Combustion Engine

Detailed Wankel Engine Model

Internal Combustion Engine Design

Internal Combustion Engine Moto

An internal combustion engine

Twelve-cylinder internal combustion engine (V12 Engine)
Subaru EJ20 Cutaway model

Internal Combustion Engine

Fully Functional I4 Internal Combustion Engine Model

Inline 4-Cylinder Internal Combustion Engine

NE15S four-stroke Internal Combustion Engine

2 Cylinder Boxer Engine model

2-Stroke Internal Combustion Engine Improved

4-Cylinder Internal Combustion Engine

Internal Combustion Engine

Mechanical Connecting Rod for Internal Combustion Engine

Combustion Engine Model

4-Stroke Internal Combustion Engine Design

Internal Combustion Engine Piston–Crank Mechanism Subassembly (Educational Assembly Model)

Internal combustion engine

4 cylinder 16 Valve Internal Combustion Engine

4-stroke engine model

V6 Internal Combustion Engine Assembly

4-Cylinder Internal Combustion Engine Mechanism (Crank-Piston Assembly)

Two-stroke internal combustion engine

V12 Internal Combustion Engine: Advanced 3D CAD Modeling

Engine Crankshaft

Single-Cylinder Internal Combustion Engine –

V6 Engine Assembly | Detailed Internal Combustion Engine CAD Model

4-cylinder inline internal combustion engine

Piston of Internal Combustion engine
Phone Stand Combustion Engine

INTERNAL COMBUSTION ENGINE

Насадка на пластиковую крышку банки, для отсасывания масла из ДВС при замене.

Internal Combustion Engine (ICE)

4 Cylinder Internal Combustion Engine

Internal Combustion Engine Anamation

Internal Combustion Engine design

Internal Combustion Engine Camshaft Design

4 Cylinder Internal Combustion Engine Model

Internal Combustion Engine Crankshaft & Piston Assembly

Wankel_Rotary_Assembly

Complete valve mechanism set for internal combustion engine

V6 internal combustion engine

Internal Combustion Engine
«3D Models of Combustion Engines for 3D Printing»
Engine models differ mainly in layout and in how much of the mechanism they show. Rotary designs use a spinning rotor instead of pistons, while inline and V-shaped versions reproduce a familiar cylinder arrangement. Radial and boxer engines stand out by the way their cylinders are placed around or opposite each other, and cutaway versions expose the internal parts rather than hiding them inside a housing.
On the author's model page, look at the stated size and scale, the number of separate parts and how they join, and whether the description mentions support material. Check which material and settings the author lists, since thin fins, shafts and small gears behave differently in different filaments. Photos of real prints are the most useful reference for judging proportions and surface detail before you commit to a long print.
If the results feel narrow, try related wording: piston engine, crankshaft, camshaft, cylinder block, motor mockup, or the name of a layout such as boxer, radial or rotary. Adding a scale or a display purpose to the query helps separate small desk models from larger assemblies. Browsing neighbouring topics like mechanical models, engine stands or workshop props can also surface files that do not use the word engine in the title.
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Do these engine models actually run?
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Can I scale an engine model up or down?
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