
3D Models of Fan Shrouds, Ducts and Blanking Plates
This collection gathers STL files for fan shrouds, ducts, size adapters, mounts and blanking plates. Most of it comes from 3D printing and electronics cooling, where a printed part redirects air or closes an opening that is no longer used. It gives you a starting point before modelling your own version. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
How this collection is put together
Polyzon assembles this collection from search results on the connected platforms. Repeats and models without a preview are removed, weak matches go to the end, and the rest keeps the search order. Models belong to their authors — check the terms on each model's page.
Selection rules: the Polyzon editorial team · Text updated 2026-10-14
Start here
All models in this collection

Xtool 20w cooling fan cap dimensions

Anycubic Kobra Max/Vyper Printhead/Gantry Quiet Cover

Corsair Capswap RAM Cooling Fan Cap

Sony A7iii Cooling Fan (a6000, a7sii + Other Cams)

Milwaukee Tools Big Wire Nut

ASIC Simple Fan Shroud 140mm all sizes Whatsminer

Xiegu X6100 deskstand remix skeletonized 12 Volt 6010 fan

ASIC Simple Fan Shroud 120mm all sizes Whatsminer & Antminer

Evil DJ Tow Hitch Cover – Universal Trailer Cap

Cyber Skull Trailer Hitch Cover Tow Plug

Chess Kit Card

Electric motor fidget spinner

A1/ MINI Toolhead Fan Cover - Extruder Cooler

A2L Z Axis Motor Vent Cover ⧸ Dust Resistant Mesh
Alien Head Hitch Cover • Sci-Fi Truck Accessory

Bambu Lab front cover

Air Duct Cover ALL SIZES!

Phantom Vortex Extruder Wheel

Detroit Lions Hitch cover

Anycubic Predator 12V Fan Mod
%2Fhttps%3A%2F%2Ffbi.cults3d.com%2Fuploaders%2F13797397%2Fillustration-file%2Fbe10273f-10d3-4b58-8e25-31f72deed6de%2FCAM00247_display_large.jpg&w=300)
Filament Cleaner

New cooling for fan 40x40x10 LAma 3D
%2Fhttps%3A%2F%2Ffbi.cults3d.com%2Fuploaders%2F13797397%2Fillustration-file%2F867cde31-a62d-493e-a584-b0d35786e4a9%2FCAM00260_display_large.jpg&w=300)
Tube Extender Bracket Holders

Tronxy X3 Addons and Modifications

Le Potato Skin

50通风管排气管转接60散热风扇法兰转接器
Universal fan duct cooling for lama hotend

Knight Helmet Towbar Cover Trailer Hitch Cap

Chief Skull Tow Ball Cover
Orc Shaman Skull Tow Hitch Cover

Panther Trailer Hitch Cover

Steampunk Cyborg Mask Tow Hitch Cover
Goggle Skull Hitch Cover

Godzilla Style Roaring Monster Tow Hitch Cover

UFO Tow Hitch Cover

Tiger Head Trailer Hitch Cover Tow Cap
Aviator Skull 50mm Tow Ball Cap

Pig Tow Hitch Cover Guard
Jigsaw Billy Puppet Tow Hitch Ball Cover

Devil Chili Pepper Tow Hitch Cover
Cement Mixer Truck Tow Hitch Cover

Carnosaurus Tow Hitch Cover
Retro Bot Tow Hitch Ball Cover
Mummy Hitch Cover

Mechanical Eagle Trailer Hitch Cover
«3D Models of Fan Shrouds, Ducts and Blanking Plates»
Shrouds and ducts form the largest group: they sit over a fan and guide air toward a hot part, and they differ mainly in outlet shape, length and the angle of the exit. Size adapters join a fan to a pipe or to a fan of another diameter, while mounts, risers and brackets hold a fan at an angle or against a panel. Guards and blanking plates cover the opening itself, either to keep fingers and cables away or to close a fan position that has been left empty.
Before printing, open the author's model page and read the listed dimensions: fan size, screw hole spacing, outlet diameter and overall depth decide whether the part matches your setup. Check how many separate pieces the model has and how they join, and whether the author mentions supports, material or particular settings. Photos of real prints show more than renders, especially for thin duct walls.
If a search returns too few results, try the fan size instead of the device name — 40, 60, 80, 92, 120 or 140 mm — or the words shroud, duct, adapter, spacer, guard and blanking plate. Related topics such as radiator airflow, enclosure exhaust or a specific toolhead often lead to the same kind of part. Combining a fan size with the word adapter widens the list.
For an unused fan opening, a flat plate with matching screw holes is often enough, and it can be drawn in a few minutes if nothing in the results fits. When a part sits in a hot or vibrating place, note the material and wall thickness the author lists and compare them with your own conditions.
Frequently asked questions
What is the difference between a fan shroud and a fan duct?
How do I find a blanking plate for an unused fan opening?
Which measurements matter most when choosing a fan adapter?
Can a printed shroud be used in a car cooling system?
All 3D model categories
The full catalog of topics — from home & household to CNC, searchable across the connected sources.




