
Pneumatic LEGO 3D Models: Tanks, Valves, Connectors
This collection gathers STL files for pneumatic parts used in brick-built mechanisms: tanks, valves, cylinders, T-pieces, hose connectors and wheels. Most of it is aimed at people who build air-driven machines and need a part that the standard assortment does not cover. The files come from different platforms, so each listing has its own description and printing notes. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
本合集的文字为英文,搜索本身支持任何语言。
合集是如何整理的
此合集由Polyzon根据已接入平台的搜索结果整理而成:去除重复项和没有预览图的模型,匹配度低的排在最后,其余按搜索结果顺序排列。模型归作者所有——请在各模型页面查看使用条款。
筛选规则:Polyzon编辑部 · 文字更新于2026年10月12日
从这里开始
合集中的全部模型

lego pneumatic air tank

LEGO Pneumatic Tee

Lego Compatible (4697b.dat) Technic Pneumatic T-Piece - Type 2

Lego pneumatic v2 tank

Lego technic Pneumatic air tank

Lego 4697B (Pneumatic T-Bar)

Lego Technic Pneumatic Lever

Lego Technic Pneumatic Pump Rig

Valve for Lego Pneumatic Engines

CUSTOM lego connecting rods for lego pneumatic fake engines (LPFEs)

Lego Compatible (99021.dat) Pneumatic Hose Connector with Axle Connector

LEGO Pneumatic piston shaft for 48mm single acting cylinder

Lego Compatible Pneumatic Switch for mounting on motor

Lego Technic Pneumatic Crane, 8835

Inline 4 lego pneumatic (fake) engine

lego pneumatic hose connector 99021

LEGO Pneumatic piston shaft for 64mm single acting cylinder

LEGO Pneumatic piston shaft for 48mm single acting cylinder

Plastic Bottle Cap for Lego Pneumatics

LEGO compatible flywheels for (pneumatic) engines

XC 600 inline twin Lego pneumatic engine ("pin valve" style)

Balloon Powered Radial Engine

Lego Pneumatic Pump with Spring

Lego 3-Way Pneumatic Valve

Lego Technic pneumatic tank with holder

LEGO Pneumatic piston shaft for 64mm single acting cylinder

Lego Pneumatic - rolling bridge London

Lego pneumatic connections for 8837

Lego pneumatic radial engine core

Lego pneumatic t piece

LEGOs Pneumatic Air Line Joiner | Hose Connector

LEGOs Pneumatic Bottle Adapter Air Storage Tank

LEGOs Brick Pneumatic Systems Air Line Connector

Leggo Technic Pneumatic Pump Rig

Air Balloon Motor for LEGO

crankshaft bracket and crankshaft for lego V8

pneumatic tank2

penumatic lêgo cylinder

Lego Pneumatik Zylinder XXL

cerchio in lega + pneumatico

Lego Pneumatik T-Stück

Oscillating Cylinder Motor for LEGO

LEGO (vacuum) venturi flow meter

printable FRC parts

LEGO Technic - 8868 Air Tech Claw Rig
«Pneumatic LEGO 3D Models: Tanks, Valves, Connectors»
The parts fall into a few groups. Tanks and reservoirs store air for a circuit, while T-pieces, hose connectors and adapters join the lines between them. Valves, switches and levers control when air moves, and cylinders or small air-driven motors turn that pressure into motion. A separate group covers wheels and tyres for brick-built vehicles, where the printed part replaces or extends the original one.
Before printing, read the author's page for the details that decide whether a part works in your build. Check the stated size and scale against the bricks you already have, count the separate pieces and see how they assemble, and note whether the shape needs supports. The material and settings the author lists matter here, because thin walls and small bores behave differently in different filaments. Photos of real prints show how the part looks once made, including the surface around openings and threads.
If the first search gives little, try other wordings for the same idea: air tank, reservoir, pressure vessel, hose, tube, nipple, adapter, T-connector, manifold. Searching for the mechanism rather than the part helps too, for example air engine, pneumatic circuit or vacuum line. Related topics such as brick-built machines, mechanical linkages and small compressors often lead to parts that fit the same system.
常见问题
What files do I need to build a pneumatic circuit?
Do printed pneumatic parts need supports?
Which material works for air-tight parts?
How do I find a part when I do not know its name?
全部3D模型分类
完整的主题目录:从家居日用到CNC,均可在已接入的来源平台中搜索。







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