So.Its wings are 1.2 mm in width,height of almost 80 mm and also length of 25mm.

Assembly:

Take the main part and install the fan on the tip of it.For the fan not to fall off,use something to glue it there so that the fan has place to move,but isn't too wobly.Then,insert the main part into the platform and it's done.

Use:

Go outside in a clear area where buildings are atleast 10m from every direction to get the most accurate readings.Match the device's north via a compass and compare it to the weather forecast.If everything printed and installed correctly,it shall look at the direction where the wind is coming from

Warnings and small details:

If it's spinning everywhere,the wind might be chaotic that day,or it's too close to a building that's blocking the wind.

If it's fan is not spinning,but itself is turning in the direction of the wind,it means the wind is too weak,or the fan might be jammed.

If the main part itself isn't moving,check your printer settings,it might not work for you if you have bad accuracy with your printer.

I printed it on an Anycubic Kobra 2 Pro and it works fine.All the files are listed,anchor is not nessecary.