ring cooler duct
thingiverse
This is a ring fan designed to fit almost any 3dprinter extruder (with a little bit of tinkering). I have used it for 1 month and getting so much better result then I did before. This ring fan is designed to cool down the part from every angle and so it's better then a single or dual fan just pointing at the print.
Download Model from thingiverse
With this file you will be able to print ring cooler duct 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 ring cooler duct.