Ender 3 S1 /Sprite extruder dual 5015 fan cooling duct

part cooling upgrade for ender 3 s1/ sprite extruder
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updated September 7, 2025

Description

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This is based on my other model, which i listed as a remix of Ioannis Giannakas high performance 5015 part cooling fan duct, due to reusing the duct tips. every part of this model was modeled by myself so i dont think it counts as a remix anymore. im not really a fan of the other dual 5015 ducts ive seen online. they seem to be overly complicated with too many bends, or clutter up the area around the filament lever. that is just my opinion though, i have done no scientific testing and i am sure many of those could outperform this one. i just tried to keep airflow and the part direct and simple.   i have made changes to my other model that should improve airflow and hopefully keep it smoother.  if youre wondering why the duct tips are farther forward than the nozzle, its because they kind of blow forward. when checking with water bowl test this seemed to be the best placement to end up with air below the nozzle center.  am using this on ender 3 s1 pro.  am guessing it should work on other printers with sprite extruder but cant say for sure. will need a zero y offset backplate to use this duct. you can use my remix backplate, i havent tried with others to see if theyll fit together. will need 3 longer fan screws as stock ones are too short, and of course the 2 long screws/nuts for the 5015 fans mounting. not sure how other 5015 fans will fit. but fits snug with my makerfocus ball bearing fans.  have attached pictures of where i put supports to print the model

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The author marked this model as their own original creation.

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