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40mm Fan Adapters

by DarkAlchemist, published

40mm Fan Adapters by DarkAlchemist Sep 15, 2012

Description

This converts a different sized fan (25mm thick) for use on a 40mm x 10mm fan connector. By doing this your noise level and sound level can be EXTREMELY decreased while putting out more CFM than a 40mm can ever do.

For the 120mm, 92mm, and the 80mm fan mounts there are extra tall versions (30mm taller) that allow more airflow to pass.

Recent Comments

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Well, what antiquated slicing program are you using? Slic3r saw the 116 errors and automatically fixed them because they aren't really errors they are edges that it thinks are issues. Easily fixed and it happens when the model was not on the right plane when exported as STL.
STL files for 80-40mm adapters are non manifold. Don't know about the rest, Gave up attempting to slice them.
The images are just for illustrative purposes and I can't remember if I turned them upside down for the image or not (been too long) but I would print the large side down especially the 40mm to 120mm one.

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Instructions

This requires 3mm x 15mm fan mount screws for the 40mm side and 4.5mm x 30mm for the 120mm fan connection (4 of each type) and 4mm x 30mm for the others. All mounting fans need to be 25mm or adjust the length of the 4 screws for it. Use heavy infill for this since it will need it and I honestly suggest 75% to 100% due to the weight of the larger fans and the screws need the infill to really dig into.

The file is uploaded to show how it will look when mounted so flip it however you think will print the best for you and your machine but I think 180 degrees around (40mm side up the larger side down) should print better.
STL files for 80-40mm adapters are non manifold. Don't know about the rest, Gave up attempting to slice them.
Well, what antiquated slicing program are you using? Slic3r saw the 116 errors and automatically fixed them because they aren't really errors they are edges that it thinks are issues. Easily fixed and it happens when the model was not on the right plane when exported as STL.
Exactly what I was looking for!! Great job!!
Question: I'm printing it on Replicator 2X, which side down should I print this file "120mm_to_40mm_Fan_Adapter_Extra_Tall".
If printing narrow side down it looks like it will print fine but I am afraid for the cone expansion towards the top, may become too unstable during print.. If flipping wide side down, it looks more stable but then there's overhangs at the narrow end. Any thoughts?
The images are just for illustrative purposes and I can't remember if I turned them upside down for the image or not (been too long) but I would print the large side down especially the 40mm to 120mm one.
i think they look very cool, but the bigger adaptors are probably not going to work as the shroud is to short..... it will reflect the airflow instead of guiding it to the end
I just added extra tall versions (30mm more height) that allows more airflow to get through.
They work and have at least as much CFM as the 40mm do though are do reflect a lot of their CFM. Mainly these are for the ramps and a 40mm giving 7CFM is one loud noisy beast whereas a 120mm that has a lot of reduction due to the cone will still beat 7CFM and will take less power, normally, and will be so much quieter.

120mm and 92mm to a 40mm was for those who wanted to try it as I think that would be over kill (40mm is what the hub is for the 120mm and that is the dead spot in a 120mm fan).
ill check them out then maybe good to replace my 40mm fans..... i made my reply because i tried to make one myself but they failed due to airflow
Well, there are extended versions now that will allow more air flow down the tube.
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