30mm to 40mm fan adapter ring
thingiverse
This adapts a 30x30x7 fan to a 40x40 friction fit fan slot. I created this after printing a case that required a 40mm fan, but I only had a 30.
Download Model from thingiverse
With this file you will be able to print 30mm to 40mm fan adapter ring 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 30mm to 40mm fan adapter ring.