Anemometer Cup for Weather Station

thingiverse

I'm designing an Anemometer Cup and center dome for my home weather station. The center dome houses a bearing and magnet that triggers a reed switch to measure wind speed - I'm using an old Lacrosse Technology model from over ten years ago, which has held up well. The cups themselves have a slightly conical shape, making them easy to print without support material. They can be attached directly to the center dome with some glue. There are two types of center domes available; one features a separate dome and collar for the bearing, allowing it to be printed without any additional support. This design includes two collars - a shorter and longer version - that simply need to be glued together. The other center dome is an all-in-one design that requires printing with support material. So far, this setup has lasted over a year in the harsh Australian climate, surviving temperatures of up to 45 degrees Celsius (113F) during summer days, as well as rain and storms.