30mm 40mm fan adapter
thingiverse
Based on https://www.thingiverse.com/thing:3911733
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With this file you will be able to print 30mm 40mm 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 30mm 40mm fan adapter.