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MK3S(+) 40mm Axial Fan Duct
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Mount a 40mm axial fan on a MK3S(+).
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- Reviews
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Updated at source:
Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- Creative Commons — Public Domain
Sick of sub-par but working cooling? Why not tinker a bit?
This fan duct allows mounting a 40mm axial fan to the Prusa MK3S(+).
Things to note:
- MK3S fans are 5V, though 24V can be accessed through the power supply directly or pin1 of the PI connector. (YOU NEED TO KNOW WHAT YOUR DOING)
- Fan speed check can produce errors with non-stock fans. Can be disabled in settings.
- Stock firmware occasionally revs the fan to 100% for a few ms on low RPM. Disabling requires recompiling & flashing. (YOU NEED TO KNOW WHAT YOUR DOING)
- Axial fans usually have BAD static pressure, leading to bad performance for part-cooling.
Materials:
- M3 screws measuring the thickness of your fan + 5-10mm.
- Screws and nuts from the stock fan duct.
Printing & Assembly:
- Use PETG or more heat resistant material.
- Check preview for the quality of thin edges at the outlet.
Personal Experience:
- Way too loud with a high flow fan.
- Electronics a bit more tricky than I liked.
- Went back to this dual fan solution.
- Learn from my mistakes, leave a like and be on your way.