A quick and easy way to build your own anemometer! A windspeed meter is essential both for evaluating a site for wind power potential, and for measuring the performance of your wind turbine. The most tedious part of building our Easter Egg Anemometer was fabricating and balancing the cup assembly. This product makes that easy! You can use it for any design, including bicycle speedometer versions.
The 3 cups and the hub are made from extremely durable black polycarbonate plastic (Lexan?). They ship unassembled, and the cups simply press fit very firmly into the hub -- no glue is needed. In both of the anemometers we built with these cups, no balancing was needed. There is a 3/32 inch diameter reinforced hole in the exact center of the hub to make fitting your own shaft, bearing, or surplus gadget to the hub fast and easy.
The total diameter of the unit is 8.5 inches. Each cup is 2.5 inches in diameter. The hub is 1.5 inches in diameter and 1.375 inches deep.
No sensing apparatus is included, that is up to you. This product includes the cups and hub assembly only.
And, check out our Bicycle Speedometer Anemometer Page to see the anemometers that we built using this product!