40mm to 30mm Fan-Adapter
thingiverse
Most 30-40 mm fan adapters found on Thingiverse often utilize non-standard screws. I've designed this adapter for ISO 4762 - M3 screws, but others like DIN 7985 - M3 will also work well. The length used are typically 8 mm and 16-18 mm.
Download Model from thingiverse
With this file you will be able to print 40mm to 30mm 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 40mm to 30mm Fan-Adapter.