folding propeller
thingiverse
This miniature USB fan propeller design is tailored specifically for three-dimensional printing without the need for support structures. When printed with a resolution of 0.1mm, it takes approximately two hours and fifteen minutes to complete using seven grams of material. The unique feature of this design lies in its foldable blades, allowing for easy storage or transportation when not in use. An airfoil cross-section is utilized for the blade's profile, optimizing airflow and reducing resistance. With a radius of eight centimeters, this compact fan propeller is perfect for personal cooling devices or as an attachment to larger fans for increased airflow.
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