Rain Gauge Funnel Extension for WS-280

thingiverse

An adapter for the catch funnel of the Ambient Weather WS-280 tipping bucket rain gauge, available at http://www.ambientweather.com/amws2080rg.html. This design builds upon part 381187 shown by https://www.thingiverse.com/, modifying it to fit snugly inside the funnel via a press fit installation method for added security. To ensure a tight seal in high winds, apply a few drops of super glue to prevent the extension from coming loose. This affordable tipping bucket rain gauge is a favorite among DIY weather station enthusiasts due to its low cost. However, its catch funnel has a shallow design that allows raindrops to splash out during heavy downpours, resulting in underreported precipitation levels. This 3D-printed adapter helps mitigate splash-out errors by increasing the depth of the funnel. The "deep" version provides a full 1.5-inch deep lip, similar to 4-inch hand-serviced rain gauges used in official weather monitoring networks, such as http://www.weatheryourway.com/cocorahs/rgcoco.htm.