50mm to 40mm cooling fan adapter
thingiverse
Here is a revised design that adapts a standard 50mm cooling fan to fit perfectly within a smaller 40mm filament cooler socket, seamlessly solving common issues with limited space requirements. E.g., Check out this excellent example on Thingiverse at http://www.thingiverse.com/thing:420204.
Download Model from thingiverse
With this file you will be able to print 50mm to 40mm cooling fan adapter 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 50mm to 40mm cooling fan adapter.