Circular Fan duct Anet A8
thingiverse
Better cooling is needed on the backside of prints, so I swapped the duct in Tinkercad to fit on the outside of the fan outlet. I added a small wall inside the circular fan ring, which maintains constant air pressure and acts as a semi-circular fan duct regarding air pressure. This modification has a small offset that avoids the heating block entirely. To see this design in action, visit https://www.thingiverse.com/thing:1954001 or https://www.thingiverse.com/thing:2305368.
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