Rain Gauge Funnel

Printing Settings:
1 wall, 100% infill, use a brim (make sure infill generates on all layers for maximum strength, see image)
I printed in ASA for weather resistance.

200 cm^2 circular gauge opening w/ sharp(ish) edge for increased accuracy and easier calibration. My rough calibration estimate is 0.1mm of rainfall per tip. 

You might like this jig for an aquara door sensor to make gauge wireless: https://www.printables.com/model/823854-rain-gauge-aquara-holder

Inspired by: https://community.home-assistant.io/t/diy-zigbee-rain-gauge/255379

CAD: https://cad.onshape.com/documents/dd383220c5c0d2be52234ea5/w/1bc016954060be084ea56e51/e/e1f3bd7358c45af12554a1b7?renderMode=0&uiState=65b9adfc0ff7c47e00b58d8f