Compatible with Prusa i3: Fan Duct for E3D Hotend Active Cooling

Your printer, running the way it should.

9.4k downloads in the maker community

$8.99

Color: Gray

Printed in the USA when you order.

1.You order it
2.We print it fresh
3.It ships to you

Parametric OpenSCAD design — tweak dimensions to fit your build
Prints supportless in ABS, saving material and post-processing hassle
Configured for E3D v5/v6 hotends and Prusa i3 reworked Wades extruder
Directs airflow exactly where you need it for cleaner overhangs
Includes STL variants for J-Head and different bed clearances

Keep your prints cool with this parametric fan duct designed for active cooling on E3D v5 and v6 hotends paired with the Prusa i3 reworked Wades extruder. Built entirely in OpenSCAD, the design lets you adjust key parameters—like layer height and mounting geometry—so it slots right into your specific setup.

The clever supportless geometry means you can print it straight in ABS without any scaffolding or cleanup drama. Just dial in your layer height in the source file before slicing, and you're good to go. The duct directs airflow precisely onto your part, helping you nail those tricky overhangs and bridging moves.

This package includes multiple STL variants: configurations for E3D v5, E3D v6 (optimized for 0.2 mm layers), and a J-Head version with 45 mm bed clearance. Whether you're tweaking an existing machine or building a new extruder, the open-source files give you full control to adapt the design to your needs.

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