30mm to 40mm fan adapter
thingiverse
I required a fan adapter to accommodate a Noctua 40mm fan to this cooling fan adapter https://www.thingiverse.com/thing:2722203, so I designed one up in Fusion360 and achieved a perfect fit right off the bat. It utilizes 3x12mm screws for securing it onto place and Noctua rubber holders for holding the fan itself in position.
Download Model from thingiverse
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