Stevenson screen for weather station

Replacement Stevenson screen for the temperature sensor for my weather station, a Clas Ohlson 36-3242, similar to stations with names like WH 2080 and Misol.

Made to be printed in ABS without support (upside down).

Can be customized. Feel free to use the openscad file for ideas.

Openscad does some weird calculations with faces, but the STL file turns out correct.