30mm fan duct
thingiverse
Fan duct for small 30mm fan incl. Autodesk file. 40mm fan duct: https://www.thingiverse.com/thing:2772709
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With this file you will be able to print 30mm 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 30mm fan duct.