MINIMUS HOTEND 4010 / 4020 fan module

I recently printed and installed the Minimus hotend cooler https://cults3d.com/en/3d-model/tool/minimus-hotend-cooler-system#comment-answer-172393 and it is fantastic however it only uses blower fans for the part cooling and the stock 4010 blower fans where quite loud and high pitched when ran at high speed so I came up with the idea to use a standard 4010 or 4020 fan as these are a lot quieter even when at full speed, I had a look and could not see that anyone had made one so i decided to design an adapter to a low the use of a 4010 or 4020 fan in the 4010 blower fan part cooling slot.

These are sized so they slide in 4010 blower fan slot and then click into place quite securely but can easily be removed, to attach the fan to them you can use the screws that came with your ender 3 the ones used to hold the fan to the stock cooler cover there should be 4 so use 2 on each side, there also slots to the rear of them where you can use cable ties to hold the fan cables .

If you are using on an Ender 3 stock Crality 4010 24v fans work well but be aware you will need to cut wires to solder in the new fans and i would advise to solder in a small 2 pin connector to make it easy to totally remove the fans from the printer, you could also use 12V 4010 or 4020 if your printer supports 12v fans just be sure not to use 12v on your Ender 3.

Performance:
On my printer i have a Noctua NF-A4x10 FLX cooling the heat block running at 12v using a buck converter so its pretty quiet, now on the fan modules i installed 2 stock Ender 3 4010 24v fans and up to about 60% they are equal in noise to the Noctua and at 100% just a little louder but its a lower pitch noise when compared to blower fans so less annoying, It moves a lot of air and about 70% is equal to 100% on a blower fan. The following video is a airflow water test starting at 40% on both fans going up in steps to 100% and then back down to 40% at the end, at the start the fan you hear is just the Noctua and the other printer fans as the 4010 part cooling fans are to quiet but you can start to hear them at around 48 seconds
https://www.youtube.com/watch?v=87Yik7kIrO0

This can be printed in PLA for PETG for easy printing with as little infill you can get away with ( I did mine at 10% ) and at 10% infill at 0.2mm layer hight, each module weighs around 13g (without the fan) so pretty light. As for supports, these modules should load into your slicer on their side with the nozzle facing you( see example picture ), the nozzle does not need supports and will bridge perfectly fine however the fan area will need them, so use Tree/Organic supports on build plate only and be sure to ether use a support blocker on the nozzle area or in PlucaSlicer set the do not support bridged areas