Penciltop Wind Turbine

thingiverse

A miniature vertical-axis wind turbine that sits atop a pencil, its compact design a testament to human ingenuity. Despite being woefully inefficient, this tiny turbine still manages to generate power. Its unique charm makes it an excellent physics demonstration piece or a visually appealing addition to any desk fan setup. The central hole's fit is remarkably precise, allowing it to work seamlessly with some pencils but unfortunately not all. To achieve a looser fit, simply scale the model accordingly. The print showcased here utilized supports, but in theory, it should be printable without them. However, no promises can be made regarding its reliability. This model relies heavily on the exceptional Naca4 library (thing:12634).