40 mm Fan Cover Guard
thingiverse
This 40mm fan guard is unique as it's specifically designed for protection on my Prusa i3's J-Head duct, while also providing space for warning sticker application. The cover can be securely fastened with 3mm cap screws, ensuring the screw tops sink into recesses and remain flush. Its usefulness lies in shielding a fan placed atop an object, preventing small items from falling through conventional fan guard openings.
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