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Fan Covers for 3D Printers: STL Models to Browse

This collection gathers fan covers made for 3D printing: toolhead and hotend covers, airflow ducts, exhaust and power supply grills, plus decorative and customizable versions. It helps you find a cover that matches your machine and the fan you actually have. Many listings are small parts, so they are quick prints once the dimensions line up. 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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このコレクションは、Polyzonが対応サイトの検索結果をもとに作成しています。重複やプレビューのないモデルは除外し、関連性の低いものは後ろに回し、それ以外は検索結果の順に並べています。モデルの権利は各作者にあります。利用条件は各モデルのページでご確認ください。

選定基準：Polyzon編集部 · 本文の更新日：2026年10月14日

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«Fan Covers for 3D Printers: STL Models to Browse»

Covers differ mainly in what they do. Some replace a stock cover over a toolhead fan, others combine a cover with a duct that aims air at the hotend or the printed part, and a third group covers exhaust, power supply or auxiliary fans. Decorative grills change the look of the opening, while customizable and adapter versions are made to be resized or fitted to a different fan format.

Before printing, compare the mounting points: hole spacing, screw positions, clip or magnet retention, and the clearance around the fan and the moving parts of the printer. Check the fan size the author states, the number of parts, whether the model needs supports, and the material and settings listed on the page. A cover close to the hotend usually calls for a material that holds up to heat, and photos of real prints show how the part sits on the machine.

To narrow the results, try the words people use for the same part: fan duct, fan shroud, fan grill, blower cover, part cooling duct, hotend housing, exhaust grill. Combine them with your fan size or printer series, or with a style you want, such as honeycomb, dome or themed. Related searches include toolhead covers, fan silencers and adapter plates for other fan formats.

FAQ

よくある質問

What is the difference between a fan cover and a fan duct?
A cover mainly closes or decorates the fan opening, while a duct is shaped to guide the airflow toward the hotend, the printed part or an exhaust path. Many models do both in one piece.
How do I know a fan cover will fit my printer?
Compare the mounting hole spacing, screw positions and fan size with the measurements on the author's page. If the listing shows the printer series it was drawn for, check that your machine matches it.
Which material should I use for a fan cover?
Covers away from heat can be printed in common rigid filaments, while parts near the hotend or the heater block are usually printed in a filament that tolerates higher temperatures. The author's page often lists the material and settings used.
Do these covers need supports?
It depends on the shape: flat grills and simple covers often print without them, while domed, scooped or ducted versions may need supports under overhangs. The model page usually states this.
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