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Ender 3 Hotend STL Models: Covers, Ducts, Mounts

This collection gathers STL files for Ender 3 hotend parts, including covers, fan ducts, printhead upgrades and accessory mounts. It helps you compare how different designs handle airflow, mounting and cable routing before you print. Check each model page for the exact hardware and settings. 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 Hotend STL Models: Covers, Ducts, Mounts»

Hotend covers and enclosures are common, with variations for different Ender 3 versions and for added tool or fan mounts. Fan ducts range from simple replacements to larger assemblies that change airflow around the heatsink and nozzle. Printhead conversions and upgrade kits combine a hotend mount, backplate and duct into one unit, while filament guides and holders address spool routing.

When choosing a model, check the listed Ender 3 variant, the hotend or nozzle type it is drawn around, and whether it reuses stock screws or needs extra hardware. Look at the number of parts, how they join, and whether supports are needed for the overhangs. The author's material and settings notes, plus photos of real prints, show how the part sits around the hotend and fan.

To narrow the results, try synonyms such as hotend cover, fan duct, printhead shroud, backplate, or tool mount. Related searches include part cooling, heatsink fan, nozzle access, cable chain, and filament guide. Adding your exact printer version or hotend type to the query usually reduces the list to closer matches.

FAQ

よくある質問

What is the difference between a hotend cover and a fan duct?
A hotend cover typically encloses the hotend and wiring, while a fan duct directs air from a fan toward the heatsink or printed part. Some designs combine both functions in one printed piece.
How do I check a hotend part against my Ender 3 version?
Compare the model's listed printer variant, mounting hole spacing and hotend type with your machine. Author notes and photos of installed parts are the main reference.
What measurements should I take before printing a hotend cover?
Measure the mounting hole spacing, the hotend and fan dimensions, and the clearance around the carriage. Compare these with the dimensions or drawings on the model page.
Can a hotend cover be printed in different materials?
The material choice depends on the heat near the hotend and the author's notes. Check the listed material and settings, then decide based on your printer and environment.
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