I agree - exposure to the elements might significantly limit any printed parts life expectancy. ABS is probably the way to go if you had to.
You could use a PC fan, but then you need a vane to point into the wind. Problem is measuring light winds - the internal resistance of the fan would prevent it from picking up those small puffs of air. Anemometers are nearly friction-less (depending on construction) so they can catch the lightest breezes.
You could use a PC fan, but then you need a vane to point into the wind. Problem is measuring light winds - the internal resistance of the fan would prevent it from picking up those small puffs of air. Anemometers are nearly friction-less (depending on construction) so they can catch the lightest breezes.