40mm fan mount
thingiverse
I'm really impressed by Jacaeiro's design for an all-in-one touchscreen and Raspi4 case. Since I don't have any 30mm fans, I wanted to upgrade with a noctua fan instead. This is a straightforward modification that removes the internal 30mm fan mounts and adds custom mounts for a 40mm fan. The new fan is secured with M3x20 screws and nylocs or nuts.
Download Model from thingiverse
With this file you will be able to print 40mm fan mount with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 40mm fan mount.