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Ender 3 Fan Ducts, Guards and Covers STL

This collection gathers Ender 3 fan ducts, guards, covers and cooling mounts shared as STL files. It helps when you want to replace a noisy or damaged fan part or adjust airflow around the hotend and electronics. Check each model page for the exact printer version and mounting details. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

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選定基準：Polyzon編集部 · 本文の更新日：2026年10月14日

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«Ender 3 Fan Ducts, Guards and Covers STL»

Fan ducts and shrouds direct air toward the hotend or part cooling area, while guards and grilles sit over exposed fans. Covers for boards, displays and power supplies are usually flat panels or small enclosures. Dual-fan and larger blower designs change the airflow path and often need more assembly than a simple guard.

When choosing a model, look at the fan size, screw spacing, and the direction of the outlet in the photos. Check how many parts the author lists, whether supports are needed, and which material and settings they used. The mounting area may differ between Ender 3 versions, so compare it with your own printer.

To refine a search, try terms such as fan duct, fan shroud, fan guard, blower mount, hotend cooling, part cooling, board fan cover, and PSU fan mount. Related topics include toolhead covers, cable clips, and electronics enclosures for the same printer series. Adding the specific Ender 3 version or fan dimensions to the query usually narrows the results.

FAQ

よくある質問

What is the difference between a fan duct and a fan guard?
A fan duct directs air from the fan toward a chosen area, often the hotend or printed part. A fan guard sits over the fan opening and covers the blades.
How do I choose a fan duct for an Ender 3?
Compare the fan size, screw spacing, and outlet direction with the photos and dimensions on the model page. Check which Ender 3 version the author used and whether the duct needs supports.
Do these parts need supports?
Some ducts and shrouds have overhangs that need supports, while flat guards and covers often do not. The author's page usually states this, so check before slicing.
Can I use a different fan size?
Many models are drawn around a specific fan size. If your fan differs, look for a mount made for that size or adjust the model before printing.
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