
STL Models for Motor Impellers and Fans
This collection gathers STL files for motor impellers, fan blades, and related air-moving parts. It covers radial impellers, small propellers, ducted fans, and pump or extractor rotors. Use it when you need a replacement or a starting point for 3D printing an air-moving component. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
Il testo di questa raccolta è in inglese; la ricerca funziona in qualsiasi lingua.
Come è composta questa raccolta
Polyzon compone questa raccolta a partire dai risultati di ricerca dei siti collegati. I doppioni e i modelli senza anteprima vengono rimossi, le corrispondenze deboli finiscono in fondo e il resto mantiene l’ordine dei risultati. I modelli appartengono ai rispettivi autori: verifica le condizioni sulla pagina di ciascun modello.
Criteri di selezione a cura della redazione di Polyzon · Testo aggiornato: 14/10/2026
Da dove iniziare
Tutti i modelli di questa raccolta

3D printable high torque servo/gearbox version 2
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Radial fan / Radialventilator - 125RL

Propeller

Toroidal Blade Desktop USB Fan
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EDF80 -electric ducted fan for RC toys

Parametric Fan, Propeller, Impeller

Anycubic I3 Mega ULTIMATE Upgrade Guide
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Radial Fan Impeller / Radialventilator Laufrad - 125RL-6X

Propeller for 130 DC Motor

3D Printable Jet Engine, motorized
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air extractor

150 mm EDF

Radial fan / Radialventilator - 125RL
Propeller for DIY electric motor with drill for my kayak

Propeller for 3-6V DC-Motor

DIY 3D Printed Blower
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A (mostly) 3D Printed Air Pump.

FW190D-9 固定翼 航模

RC Boat - Pump Jet Boat / 遥控船-喷射泵
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EQ2 ASTRO TRACKER. NEMA17 stepper motor mount on the EQ2 mount for the direct ascension axis.

Makita Blower Fan UB185D
RC boat
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70mm EDF for RC Airplane

Propeller for 3.175mm shaft
Centrifugal Compressor 120mm Case Fan Conversion
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Electric Brompton? DIY Friction Drive Solution

STEM Physics DC Motor Model

Bike Windcharger (easy to print)
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vacuum / ventilation fan

Wind Turbine
A Simple Direct Current Electric Motor
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fpv robot

压缩空气发动机 motor

RC boat water jet propulsion - complete open source
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Exhaust Fan built with 120V Bathroom motor and Impeller

Propeller Version 2

Scalable Pen Plotter - As big as you need it!
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Bladeless Fan

飞机引擎 Aircraft engines

Kraken Mk2 RC brushless hovercraft
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HALLOWEEN Kunstwand - Satz von 347 Modellen

Impeller

Electric Air Siren
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Covid-19 Electric-Mask

Propeller for Jet Engine
«STL Models for Motor Impellers and Fans»
Radial impellers and blower wheels move air sideways from the intake, while propellers and ducted fan rotors push air along the axis. Small propellers often mount directly on low-voltage DC motors, and ducted fan units combine a shroud with a multi-blade rotor. Air extractor and pump impellers tend to have enclosed or semi-enclosed blades for pressure. Parametric designs let you adjust diameter, blade count, and hub shape before exporting.
When choosing a model, check the hub bore and mounting method against your motor shaft. Look at the outer diameter, blade count, and rotation direction, because these affect airflow and assembly. The author's page may list recommended material, layer height, and whether supports are needed. Photos of real prints help you judge blade thickness and overhangs.
To refine the search, try synonyms such as impeller, fan wheel, blower rotor, propeller, and ducted fan. Related terms include air extractor, cooling fan, and motor rotor. Adding the motor frame size or shaft diameter to the query can narrow results. If you need a custom shape, look for parametric or OpenSCAD-based listings.
Domande frequenti
What is a motor impeller used for?
How do I choose the right impeller size?
Which material is often used for printed impellers?
Can I modify a fan or impeller model?
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