Raspberry Pi Armor Case Base plate

I bought an amor case for the raspberry-pi 4 to keep it cool. Unfortunately the metal blocks wifi. Without the base plate, which is not needed for cooling, wifi would work again but the bottom side is left unprotected and the screws are to long. So I designed this base plate to protect the bottom of the raspberry. FreeCAD file included, if you want to customize it. Use 0.8 mm line width for faster printing - there are no details anyway.