40mm fan duct
thingiverse
Here is the rewritten text: I'm looking to upgrade my Prusa I2 3D printer with a reliable fan duct and a high-quality JHead hotend.
Download Model from thingiverse
With this file you will be able to print 40mm fan 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 40mm fan duct.